Day: September 19, 2022

Piperidine structural motif is present in numerous natural alkaloids. These include piperine, which gives black pepper its spicy taste. This gave the compound its name. 2403-88-5, formula is C9H19NO, Name is 2,2,6,6-Tetramethyl-4-piperidinol. Other examples are the fire ant toxin solenopsin, the nicotine analog anabasine of tree tobacco (Nicotiana glauca), lobeline of Indian tobacco. Related Products of 2403-88-5.

Hinoshita, Masumi;Abe, Takayuki;Sato, Asako;Maeda, Yosuke;Takeyoshi, Masahiro research published 《 Development of a new photosafety test method based on singlet oxygen generation detected using electron spin resonance》, the research content is summarized as follows. Photosafety evaluations of chems. used in consumer products, such as pharmaceuticals and cosmetics, are very important. Currently, two non-animal tests for photosafety evaluations, the in vitro 3T3 neutral red uptake phototoxicity test (NRU PT) and the reactive oxygen species (ROS) assay, are used to detect photoreactive chems. However, these two tests are difficult to apply to hydrophobic chems. In the present study, we attempted to develop a new photosafety test method, named the ESR-based photosafety test (ESR-PT), that would be applicable even to hydrophobic chems. based on the detection of singlet oxygen generation after irradiation using ESR spectroscopy with 4-hydroxy-2,2,6,6-tetramethyl-piperidine as a spin trap reagent. To achieve a quant. evaluation, the singlet oxygen formation (SOF) value, which can be calculated as the increment in relative intensity after irradiation of the test mixture normalized by the increment in relative intensity after irradiation of the vehicle control solution, was calculated Therefore, the SOF value could be an effective parameter for photosafety evaluations, suggesting that the newly developed ESR-PT is a promising non-animal test applicable even to hydrophobic chems.

2403-88-5, 2,2,6,6-Tetramethyl-4-piperidinol(TEMPO) is a useful research compound. Its molecular formula is C9H19NO and its molecular weight is 157.25 g/mol. The purity is usually 95%.
TEMPO is an intermediate used in the preparation of Piperidinyloxy free radical derivatives.
TEMPO is an organic compound that acts as a radical scavenger. It is stable in the presence of water and air and can be used for the inhibition of bacterial growth. TEMPO reacts with reactive intermediates to form non-reactive substances and terminate chain reactions. This process is optimal at temperatures between 0°C and 40°C and pH values between 3.5 and 7.5. TEMPO has been shown to inhibit the growth of bacteria by reacting with reactive molecules such as amines, chlorides, or low energy radicals in aqueous solution. TEMPO also has genotoxic activity that inhibits DNA synthesis in bacterial cells through oxidation of guanine residues on DNA molecules., Related Products of 2403-88-5

Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem

Industrially, piperidine is produced by the hydrogenation of pyridine, usually over a molybdenum disulfide catalyst: C5H5N + 3 H2 → C5H10NH. 5382-16-1, formula is C5H11NO, Name is 4-Piperidinol. Pyridine can also be reduced to piperidine via a modified Birch reduction using sodium in ethanol. COA of Formula: C5H11NO.

He, Ruoyu;Xu, Bingyong;Ping, Li;Lv, Xiaoqing research published 《 Structural optimization towards promising β-methyl-4-acrylamido quinoline derivatives as PI3K/mTOR dual inhibitors for anti-cancer therapy: The in vitro and in vivo biological evaluation》, the research content is summarized as follows. Built upon the 4-acrylamido quinoline derivative, a previously discovered PI3K/mTOR dual inhibitor, structural modification was undertaken in this study with the attempt to improve its oral exposure via introducing steric hindrance to the 4-acrylamido functionality. Consequently, I, as the representative among the synthesized compounds, exhibited IC₅₀ values of 0.80, 0.67, 1.30, 1.30 and 5.0 nM against PI3Kα, PI3Kβ, PI3Kγ, PI3Kδ and mTOR, resp. Besides, I displayed comparable anti-proliferative activity against both PC3 and U87MG cell lines to that of the pos. reference GSK2126458 with resp. GI₅₀ value of 0.36 and 0.14μM. Kinase selectivity assay showed that I was selective to PI3K family. In U87MG cells, I can strongly down-regulate PI3K/Akt/mTOR pathway via blocking both PI3K and mTOR signaling at the concentration as low as 25 nM. Importantly, following a PO dose of 5 mg/kg in male SD rats, I displayed favorable oral exposure (AUC_0-t = 1336.16 h x ng/mL, AUC_0-∞ = 1447.63 h x ng/mL) and high maximum plasma concentration (C_max = 903.00 ng/mL). In a U87MG glioblastoma xenograft model, tumor growth inhibition of 93.5% and tumor regression were observed at PO dose of 30 and 60 mg/kg, resp. Meanwhile, no overt loss of body weight was observed in the I-treated groups. Taken together, I, by virtue of its attractive performance, merits further development as a potential anti-tumor candidate.

COA of Formula: C5H11NO, 4-Hydroxypiperidine is a molecule with a carbonyl group. It is the most active and selective CCR5 receptor antagonist that has been studied to date. 4-Hydroxypiperidine inhibits HIV infection by preventing the binding of HIV to its receptor on the surface of white blood cells, thereby preventing it from entering these cells. 4-Hydroxypiperidine also acts as an anti-inflammatory agent in chronic bronchitis patients, due to its ability to inhibit prostaglandin synthesis. The chemical ionization mass spectra of this molecule show peaks for methyl ethyl, malic acid, and hydroxyl groups. These properties make 4-hydroxypiperidine a useful candidate for drug development against inflammatory diseases and several cancers.
The molecular structure, vibrational spectra, NBO and UV-spectral analysis of 4-Hydroxypiperidine have been studied. The compounds with a substituted 4-piperidinol core have been found to be potent antagonists of the human H receptor., 5382-16-1.

Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem

Piperidine structural motif is present in numerous natural alkaloids. These include piperine, which gives black pepper its spicy taste. This gave the compound its name. 2403-88-5, formula is C9H19NO, Name is 2,2,6,6-Tetramethyl-4-piperidinol. Other examples are the fire ant toxin solenopsin, the nicotine analog anabasine of tree tobacco (Nicotiana glauca), lobeline of Indian tobacco. HPLC of Formula: 2403-88-5.

He, Lei;Yang, Chao;Ding, Jie;Lu, Mei-Yun;Chen, Cheng-Xin;Wang, Guang-Yuan;Jiang, Jun-Qiu;Ding, Lan;Liu, Guo-Shuai;Ren, Nan-Qi;Yang, Shan-Shan research published 《 Fe, N-doped carbonaceous catalyst activating periodate for micropollutant removal: Significant role of electron transfer》, the research content is summarized as follows. In this study, the performance of periodate (PI) on sulfadiazine (SDZ) degradation was evaluated using coagulation solid waste fabricated catalyst (CWBC), obtained by simple pyrolysis. SDZ effectively underwent 98.94% remove within 90 min in the CWBC/PI system. Electron transfer was the predominant mechanism due to the development of an electronic cycle among SDZ, CWBC and PI, where the O·-2, PFRs, and the reactive iodine species had minor roles. D. functional theory calculations identified that Fe and N could change the electron configuration and break the chem. inertness of carbonaceous material. As a result, electrons on the carbon matrix of CWBC are inclined to travel through the formed Fe-O covalent bond to PI. Further anal. demonstrated that SO2-4, humic acid (HA), as well as anoxic conditions greatly facilitated SDZ degradation This study provides a facile protocol for converting coagulation waste to an efficient catalyst and provides fundamental insights into the degradation mechanisms of micropollutants by activating PI.

2403-88-5, 2,2,6,6-Tetramethyl-4-piperidinol(TEMPO) is a useful research compound. Its molecular formula is C9H19NO and its molecular weight is 157.25 g/mol. The purity is usually 95%.
TEMPO is an intermediate used in the preparation of Piperidinyloxy free radical derivatives.
TEMPO is an organic compound that acts as a radical scavenger. It is stable in the presence of water and air and can be used for the inhibition of bacterial growth. TEMPO reacts with reactive intermediates to form non-reactive substances and terminate chain reactions. This process is optimal at temperatures between 0°C and 40°C and pH values between 3.5 and 7.5. TEMPO has been shown to inhibit the growth of bacteria by reacting with reactive molecules such as amines, chlorides, or low energy radicals in aqueous solution. TEMPO also has genotoxic activity that inhibits DNA synthesis in bacterial cells through oxidation of guanine residues on DNA molecules., HPLC of Formula: 2403-88-5

Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem

Piperidine the name comes from the genus name Piper, which is the Latin word for pepper. 5382-16-1, formula is C5H11NO, Name is 4-Piperidinol. Although piperidine is a common organic compound, it is best known as a representative structure element within many pharmaceuticals and alkaloids, such as natural-occurring solenopsins. Reference of 5382-16-1.

Han, Xin;Zhao, Lijie;Xiang, Weiguo;Qin, Chong;Miao, Bukeyan;McEachern, Donna;Wang, Yu;Metwally, Hoda;Wang, Lu;Matvekas, Aleksas;Wen, Bo;Sun, Duxin;Wang, Shaomeng research published 《 Strategies toward Discovery of Potent and Orally Bioavailable Proteolysis Targeting Chimera Degraders of Androgen Receptor for the Treatment of Prostate Cancer》, the research content is summarized as follows. Proteolysis targeting chimera (PROTAC) small-mol. degraders have emerged as a promising new type of therapeutic agents, but the design of PROTAC degraders with excellent oral pharmacokinetics is a major challenge. In this study, we present our strategies toward the discovery of highly potent PROTAC degraders of androgen receptor (AR) with excellent oral pharmacokinetics. Employing thalidomide to recruit cereblon/cullin 4A E3 ligase and through the rigidification of the linker, we discovered highly potent AR degraders with good oral pharmacokinetic properties in mice with ARD-2128 (I) being the best compound ARD-2128 achieves 67% oral bioavailability in mice, effectively reduces AR protein and suppresses AR-regulated genes in tumor tissues with oral administration, leading to the effective inhibition of tumor growth in mice without signs of toxicity. This study supports the development of an orally active PROTAC AR degrader for the treatment of prostate cancer and provides insights and guidance into the design of orally active PROTAC degraders.

5382-16-1, 4-Hydroxypiperidine is a molecule with a carbonyl group. It is the most active and selective CCR5 receptor antagonist that has been studied to date. 4-Hydroxypiperidine inhibits HIV infection by preventing the binding of HIV to its receptor on the surface of white blood cells, thereby preventing it from entering these cells. 4-Hydroxypiperidine also acts as an anti-inflammatory agent in chronic bronchitis patients, due to its ability to inhibit prostaglandin synthesis. The chemical ionization mass spectra of this molecule show peaks for methyl ethyl, malic acid, and hydroxyl groups. These properties make 4-hydroxypiperidine a useful candidate for drug development against inflammatory diseases and several cancers.
The molecular structure, vibrational spectra, NBO and UV-spectral analysis of 4-Hydroxypiperidine have been studied. The compounds with a substituted 4-piperidinol core have been found to be potent antagonists of the human H receptor., Reference of 5382-16-1

Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem

Piperidine the name comes from the genus name Piper, which is the Latin word for pepper. 2403-88-5, formula is C9H19NO, Name is 2,2,6,6-Tetramethyl-4-piperidinol. Although piperidine is a common organic compound, it is best known as a representative structure element within many pharmaceuticals and alkaloids, such as natural-occurring solenopsins. Recommanded Product: 2,2,6,6-Tetramethyl-4-piperidinol.

Guo, Yanxiu;Yan, Liangguo;Li, Xuguang;Yan, Tao;Song, Wen;Hou, Tailei;Tong, Caili;Mu, Junli;Xu, Meng research published 《 Goethite/biochar-activated peroxymonosulfate enhances tetracycline degradation: Inherent roles of radical and non-radical processes》, the research content is summarized as follows. While biochar supported iron materials have been widely studied in advanced oxidation processes (AOPs), little is known about the effect and mechanism of goethite/biochar in sulfate radical (SO₄^–) based AOPs. Herein, a novel goethite/biochar composite was applied as peroxymonosulfate (PMS) activator for tetracycline (TC) degradation in the water. The superior catalytic efficiency of goethite/biochar was achieved through radical (·OH and SO₄^–) and non-radical (¹O₂) processes according to the radicals quenching experiments and ESR anal. Carbonyl group and Fe species were the main active sites on the surface of goethite/biochar, which was demonstrated by combining Fourier transform IR spectroscopy, XPS and reaction kinetic experiments Furthermore, nine main byproducts of TC degradation were detected by liquid chromatog.-mass spectrometry and the reasonable degradation pathway was proposed according to the mol. structure anal. Overall, the goethite/biochar materials could be applied to activate PMS for TC degradation, and this study will benefit the application of iron/biochar materials in practical water treatment.

Recommanded Product: 2,2,6,6-Tetramethyl-4-piperidinol, 2,2,6,6-Tetramethyl-4-piperidinol(TEMPO) is a useful research compound. Its molecular formula is C9H19NO and its molecular weight is 157.25 g/mol. The purity is usually 95%.
TEMPO is an intermediate used in the preparation of Piperidinyloxy free radical derivatives.
TEMPO is an organic compound that acts as a radical scavenger. It is stable in the presence of water and air and can be used for the inhibition of bacterial growth. TEMPO reacts with reactive intermediates to form non-reactive substances and terminate chain reactions. This process is optimal at temperatures between 0°C and 40°C and pH values between 3.5 and 7.5. TEMPO has been shown to inhibit the growth of bacteria by reacting with reactive molecules such as amines, chlorides, or low energy radicals in aqueous solution. TEMPO also has genotoxic activity that inhibits DNA synthesis in bacterial cells through oxidation of guanine residues on DNA molecules., 2403-88-5.

Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem

Piperidine structural motif is present in numerous natural alkaloids. These include piperine, which gives black pepper its spicy taste. This gave the compound its name. 84358-13-4, formula is C11H19NO4, Name is 1-(tert-Butoxycarbonyl)piperidine-4-carboxylic acid. Other examples are the fire ant toxin solenopsin, the nicotine analog anabasine of tree tobacco (Nicotiana glauca), lobeline of Indian tobacco. Name: 1-(tert-Butoxycarbonyl)piperidine-4-carboxylic acid.

Guo, Peng;Tao, Maoling;Xu, Wen-Wen;Wang, An-Jun;Li, Weipiao;Yao, Qiuli;Tong, Jie;He, Chun-Yang research published 《 Synthesis of Secondary Trifluoromethylated Alkyl Bromides Using 2-Bromo-3,3,3-trifluoropropene as a Radical Acceptor》, the research content is summarized as follows. Herein, the first example using com. available 2-bromo-3,3,3-trifluoropropene (BTP) as a radical acceptor has been reported. Taking advantage of this strategy, a wide range of secondary trifluoromethylated alkyl bromides were synthesized in good to excellent yields with broad functional group tolerance by using redox-active esters as a radical precursor. The practicality of this protocol was further demonstrated by diverse derivations and direct modification of biol. active mols.

84358-13-4, N-BOC-piperidine-4-carboxylic acid, also known asN-Boc-isonipecotic acid , is a useful research compound. Its molecular formula is C11H19NO4 and its molecular weight is 229,28 g/mole. The purity is usually 95%.

N-Boc-isonipecotic acid is a potent antitumor agent that has been clinically shown to be effective against leukemia and lymphoma. It has potent antibacterial activity against Gram-positive bacteria such as Staphylococcus aureus and Streptococcus pyogenes. N-Boc-isonipecotic acid binds to the gyrase enzyme, which is used by these bacteria to maintain the integrity of their DNA, inhibiting protein synthesis and cell division. This drug also has anti-inflammatory properties. N-Boc-isonipecotic acid inhibits prostaglandin synthesis in cells, which may be due to its ability to inhibit the production of tumor necrosis factor α (TNFα) in macrophages., Name: 1-(tert-Butoxycarbonyl)piperidine-4-carboxylic acid

Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem

Piperidine is an organic compound with the molecular formula (CH2)5NH. This heterocyclic amine consists of a six-membered ring containing five methylene bridges (–CH2–) and one amine bridge (–NH–). 2403-88-5, formula is C9H19NO, Name is 2,2,6,6-Tetramethyl-4-piperidinol. It is a colorless liquid with an odor described as objectionable, and typical of amines. Synthetic Route of 2403-88-5.

Guo, Dongli;Liu, Yanbiao;Ji, Haodong;Wang, Chong-Chen;Chen, Bo;Shen, Chensi;Li, Fang;Wang, Yongxia;Lu, Ping;Liu, Wen research published 《 Silicate-enhanced heterogeneous flow-through electro-Fenton system using iron oxides under nanoconfinement》, the research content is summarized as follows. Herein, a silicate-enhanced flow-through electro-Fenton system with a nanoconfined catalyst was rationally designed and demonstrated for the highly efficient, rapid, and selective degradation of antibiotic tetracycline. The key active component of this system is the Fe₂O₃ nanoparticle filled carbon nanotube (Fe₂O₃-in-CNT) filter. Under an elec. field, this composite filter enabled in situ H₂O₂ generation, which was converted to reactive oxygen species accompanied by the redox cycling of Fe³⁺/Fe²⁺. The presence of the silicate electrolyte significantly boosted the H₂O₂ yield by preventing the O-O bond dissociation of the adsorbed OOH*. Compared with the surface coated Fe₂O₃ on the CNT (Fe₂O₃-out-CNT) filter, the Fe₂O₃-in-CNT filter demonstrated 1.65 times higher k_L value toward the degradation of the antibiotic tetracycline. ESR and radical quenching tests synergistically verified that the dominant radical species was the ¹O₂ or HO· in the confined Fe₂O₃-in-CNT or unconfined Fe₂O₃-out-CNT system, resp. The flow-through configuration offered improved tetracycline degradation kinetics, which was 5.1 times higher (at flow rate of 1.5 mL min^-1) than that of a conventional batch reactor. Liquid chromatog.-mass spectrometry measurements and theor. calculations suggested reduced toxicity of fragments of tetracycline formed. This study provides a novel strategy by integrating state-of-the-art material science, Fenton chem., and microfiltration technol. for environmental remediation.

2403-88-5, 2,2,6,6-Tetramethyl-4-piperidinol(TEMPO) is a useful research compound. Its molecular formula is C9H19NO and its molecular weight is 157.25 g/mol. The purity is usually 95%.
TEMPO is an intermediate used in the preparation of Piperidinyloxy free radical derivatives.
TEMPO is an organic compound that acts as a radical scavenger. It is stable in the presence of water and air and can be used for the inhibition of bacterial growth. TEMPO reacts with reactive intermediates to form non-reactive substances and terminate chain reactions. This process is optimal at temperatures between 0°C and 40°C and pH values between 3.5 and 7.5. TEMPO has been shown to inhibit the growth of bacteria by reacting with reactive molecules such as amines, chlorides, or low energy radicals in aqueous solution. TEMPO also has genotoxic activity that inhibits DNA synthesis in bacterial cells through oxidation of guanine residues on DNA molecules., Synthetic Route of 2403-88-5

Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem

Piperidine structural motif is present in numerous natural alkaloids. These include piperine, which gives black pepper its spicy taste. This gave the compound its name. 84358-13-4, formula is C11H19NO4, Name is 1-(tert-Butoxycarbonyl)piperidine-4-carboxylic acid. Other examples are the fire ant toxin solenopsin, the nicotine analog anabasine of tree tobacco (Nicotiana glauca), lobeline of Indian tobacco. Quality Control of 84358-13-4.

Gilbert, Audrey;Langowski, Pauline;Paquin, Jean-Francois research published 《 Synthesis of N-(2-SF₅-ethyl)amines and impact of the SF₅ substituent on their basicity and lipophilicity》, the research content is summarized as follows. The synthesis of N-(2-SF₅-ethyl)amines e.g., I is reported via the S_N2 reaction between various amines, e.g., Me (2S)-pyrrolidine-2-carboxylate and 2-(pentafluoro-λ⁶-sulfanyl)ethyl trifluoromethanesulfonate as the SF₅-containing electrophile. A total of 14 examples of SF₅-containing aliphatic amines were synthesized, with yields going from 19 to 92%. Moreover, the effect of the SF₅ substituent on the basicity and the lipophilicity of the amine was evaluated, and the SF₅ group showed to decrease both the pK_aH and the log D (pH = 7.0) values.

Quality Control of 84358-13-4, N-BOC-piperidine-4-carboxylic acid, also known asN-Boc-isonipecotic acid , is a useful research compound. Its molecular formula is C11H19NO4 and its molecular weight is 229,28 g/mole. The purity is usually 95%.

N-Boc-isonipecotic acid is a potent antitumor agent that has been clinically shown to be effective against leukemia and lymphoma. It has potent antibacterial activity against Gram-positive bacteria such as Staphylococcus aureus and Streptococcus pyogenes. N-Boc-isonipecotic acid binds to the gyrase enzyme, which is used by these bacteria to maintain the integrity of their DNA, inhibiting protein synthesis and cell division. This drug also has anti-inflammatory properties. N-Boc-isonipecotic acid inhibits prostaglandin synthesis in cells, which may be due to its ability to inhibit the production of tumor necrosis factor α (TNFα) in macrophages., 84358-13-4.

Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem

Piperidine structural motif is present in numerous natural alkaloids. These include piperine, which gives black pepper its spicy taste. This gave the compound its name. 84358-13-4, formula is C11H19NO4, Name is 1-(tert-Butoxycarbonyl)piperidine-4-carboxylic acid. Other examples are the fire ant toxin solenopsin, the nicotine analog anabasine of tree tobacco (Nicotiana glauca), lobeline of Indian tobacco. Safety of 1-(tert-Butoxycarbonyl)piperidine-4-carboxylic acid.

Ghosh, Arun K.;Shahabi, Dana research published 《 Synthesis of amide derivatives from electron deficient amines and functionalized carboxylic acids using EDC and DMAP and a catalytic amount of HOBt as the coupling reagents》, the research content is summarized as follows. A convenient protocol for amide bond formation for electron deficient amines and carboxylic acids was described. Amide coupling of aniline derivatives was investigated with a number of reagents under a variety of reaction conditions. The use of 1 equiv of EDC and 1 equiv of DMAP, catalytic amount of HOBt and DIPEA provided the best results. This method is applicable for the synthesis of a range of functionalized amide derivatives with electron deficient and unreactive amines.

Safety of 1-(tert-Butoxycarbonyl)piperidine-4-carboxylic acid, N-BOC-piperidine-4-carboxylic acid, also known asN-Boc-isonipecotic acid , is a useful research compound. Its molecular formula is C11H19NO4 and its molecular weight is 229,28 g/mole. The purity is usually 95%.

N-Boc-isonipecotic acid is a potent antitumor agent that has been clinically shown to be effective against leukemia and lymphoma. It has potent antibacterial activity against Gram-positive bacteria such as Staphylococcus aureus and Streptococcus pyogenes. N-Boc-isonipecotic acid binds to the gyrase enzyme, which is used by these bacteria to maintain the integrity of their DNA, inhibiting protein synthesis and cell division. This drug also has anti-inflammatory properties. N-Boc-isonipecotic acid inhibits prostaglandin synthesis in cells, which may be due to its ability to inhibit the production of tumor necrosis factor α (TNFα) in macrophages., 84358-13-4.

Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem

Piperidine the name comes from the genus name Piper, which is the Latin word for pepper. 2403-88-5, formula is C9H19NO, Name is 2,2,6,6-Tetramethyl-4-piperidinol. Although piperidine is a common organic compound, it is best known as a representative structure element within many pharmaceuticals and alkaloids, such as natural-occurring solenopsins. Category: piperidines.

Ghanbar, Sadegh;Kazemian, Mohammad Reza;Liu, Song research published 《 New Generation of N-Chloramine/QAC Composite Biocides: Efficient Antimicrobial Agents To Target Antibiotic-Resistant Bacteria in the Presence of Organic Load》, the research content is summarized as follows. We previously reported that covalently joining an amide-based N-chloramine with a quaternary ammonium compound (QAC) can yield a new composite biocide with faster inactivation of various bacteria. Importantly, the composite biocide was found to reduce the risk for potential bacterial resistance associated with QAC. However, similar to other N-chloramines and QACs, this high-performance composite biocide becomes less potent against pathogenic bacteria in the presence of high protein fluids. In this study, we substituted the amide-based N-chloramine moiety in the previously reported composite biocide with a secondary amine-based N-chloramine to improve the biocidal efficacy in biol. fluids. The N-Cl bond in the synthesized tetramethylpiperidine-based composite biocides is more stable in a high protein medium (HPM) than that in the hydantoin (amide)-based composite biocides. The composite biocide, 2-[4-(1-chloro-2,2,6,6-tetramethyl-piperidin-4-yloxymethyl)-[1,2,3]triazol-1-yl]-ethyl-dodecyl-dimethyl-ammonium chloride (6a), showed the best antibacterial activity in both phosphate-buffered saline and HPM among various composite biocides and benzyldodecyldimethylammonium chloride used in this study.

2403-88-5, 2,2,6,6-Tetramethyl-4-piperidinol(TEMPO) is a useful research compound. Its molecular formula is C9H19NO and its molecular weight is 157.25 g/mol. The purity is usually 95%.
TEMPO is an intermediate used in the preparation of Piperidinyloxy free radical derivatives.
TEMPO is an organic compound that acts as a radical scavenger. It is stable in the presence of water and air and can be used for the inhibition of bacterial growth. TEMPO reacts with reactive intermediates to form non-reactive substances and terminate chain reactions. This process is optimal at temperatures between 0°C and 40°C and pH values between 3.5 and 7.5. TEMPO has been shown to inhibit the growth of bacteria by reacting with reactive molecules such as amines, chlorides, or low energy radicals in aqueous solution. TEMPO also has genotoxic activity that inhibits DNA synthesis in bacterial cells through oxidation of guanine residues on DNA molecules., Category: piperidines

Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem