Day: September 26, 2022

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. Recommanded Product: 2,2,6,6-Tetramethyl-4-piperidinol.

Zheng, Weisheng;Sun, Yue;Gu, Yingpeng research published 《 Catalysis and adsorption of Zr-doped Fe₃O₄ nanoparticles provide a new strategy for diazinon removal and phosphorus recovery from aqueous solution》, the research content is summarized as follows. As potential persistent and toxic organic contaminants, organophosphorus pesticides (OPPs) are frequently detected in various waters. However, few studies are available on removing OPPs in aqueous solution through heterogeneous catalytic activated peroxymonosulfate (PMS). Herein, Zr-doped Fe₃O₄ magnetic nanoparticles were prepared via a facile solvothermal method and employed to activate PMS for degrading diazinon. A series of characterization and performance tests revealed that Zr_(0.3)Fe₃O₄ composite played a dual role as both adsorbent and heterogeneous catalyst for removal of diazinon. Attractively, the introduction of Zr into magnetite endowed the nanoparticles with prominent adsorption capacity for released phosphate during the oxidation reaction. Combined with ESR (EPR) spectra and quenching studies, Zr_(0.3)Fe₃O₄ effectively catalyzed PMS to produce four kinds of reactive oxygen species (ROS), and ¹O₂ and O^–₂ were dominantly responsible for diazinon degradation Furthermore, the possible degradation pathways of diazinon in Zr_(0.3)Fe₃O₄/PMS system were discussed based on liquid chromatog. mass spectrometry (LC-MS) anal. In conclusion, the Zr_(0.3)Fe₃O₄ nanoparticles can not only remove diazinon by catalytic oxidation but also immobilize degraded phosphorus, hence, this work offers a novel strategy for developing versatile composites.

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., Recommanded Product: 2,2,6,6-Tetramethyl-4-piperidinol

Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem

Piperidine was first reported in 1850 by the Scottish chemist Thomas Anderson and again, independently, in 1852 by the French chemist 84358-13-4, formula is C11H19NO4, Name is 1-(tert-Butoxycarbonyl)piperidine-4-carboxylic acid. Auguste Cahours, who named it. Both of them obtained piperidine by reacting piperine with nitric acid. Quality Control of 84358-13-4.

Zhao, Yanmei;Xu, Lei;Zhang, Jiankang;Zhang, Mengmeng;Lu, Jingyi;He, Ruoyu;Xi, Jianjun;Zhuang, Rangxiao;Li, Jia;Zhou, Yubo research published 《 Optimization of piperidine constructed peptidyl derivatives as proteasome inhibitors》, the research content is summarized as follows. A series of non-covalent piperidine-containing peptidyl derivatives with various substituents at side chains of different residues were designed, synthesized and evaluated as proteasome inhibitors. After proteasome inhibitory evaluations of all the synthesized target compounds, selected ones were tested for their anti-proliferation activities against three multiple myeloma (MM) cell lines. Eight analogs displayed more potent activities than carfilzomib, and the most promising compound 24 (I) showed IC₅₀ values of 0.8 ± 0.2 nM against 20S proteasome and 8.42 ± 0.74 nM, 7.14 ± 0.52 nM, 14.20 ± 1.08 nM for RPMI 8226, NCI-H929 and MM.1S cell lines, resp. Addnl., mechanisms of anti-cancer activity of representative compound 24 were further investigated. Apoptosis of RPMI-8226 cells were achieved through accumulating polyubiquitin and inducing the cleavage of caspase and PARP. Besides, half-life in rat plasma of compound 24 was prolonged after optimization, which would be helpful for increasing in vivo activities of this series of derivatives All the studies confirmed that piperidine-containing non-covalent proteasome inhibitors can be potential leads for anti-MM drug development.

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., Quality Control of 84358-13-4

Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem

Piperidine was first reported in 1850 by the Scottish chemist Thomas Anderson and again, independently, in 1852 by the French chemist 5382-16-1, formula is C5H11NO, Name is 4-Piperidinol. Auguste Cahours, who named it. Both of them obtained piperidine by reacting piperine with nitric acid. Synthetic Route of 5382-16-1.

Zhao, Tianming;Yang, Yu;Yang, Jing;Cui, Youbao;Cao, Zhi;Zuo, Daiying;Zhai, Xin research published 《 Harmine-inspired design and synthesis of benzo[d]imidazo[2,1-b]thiazole derivatives bearing 1,3,4-oxadiazole moiety as potential tumor suppressors》, the research content is summarized as follows. In view of the essential role of Twist1 in the tumorigenesis of NSCLC, developing antitumor small mols. that can suppress the expression of Twist1 is of far-reaching significance for the treatment of NSCLC. A series of novel benzo[d]imidazo[2,1-b]thiazole derivatives possessing 1,3,4-oxadiazole moiety I [Q = (CH₂)_n, n = 1, 2; R = 1-piperidyl, (4-methyl-1-piperidyl), (4-hydroxy-1-piperidyl), etc] was designed based on the structure of the first-in-class Twist1 inhibitor harmine. Among the synthetic twenty-two compounds, I the compound containing 2-(piperidine-1-yl) Et exhibited remarkable anti-proliferative activity with IC₅₀ value of 2.03μM and 9.80μM against A549 and H2228 cell lines superior to harmine (IC₅₀ = 17.12μM against A549, IC₅₀ = 31.06μM against H2228). Meanwhile, western blot assay showed that the optimal compound significantly down-regulated Twist1 protein expression in a dose-dependent manner and reduced Twist1 level better than harmine. Collectively, the promising compound was identified a potential antineoplastic lead with the ability of down-regulating Twist1 level.

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., Synthetic Route of 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. 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. Application of C11H19NO4.

Zhao, Haoqiang;Xu, Xin;Yu, Haiyang;Li, Bohan;Xu, Xingyu;Li, Huanrong;Xu, Lijin;Fan, Qinghua;Walsh, Patrick J. research published 《 Rh(I)-Catalyzed C6-Selective Decarbonylative Alkylation of 2-Pyridones with Alkyl Carboxylic Acids and Anhydrides》, the research content is summarized as follows. A Rh-catalyzed chelation-assisted C6-selective C-H activation/alkylation of 2-pyridones e.g., 1-(pyridin-2-yl)-1,2-dihydropyridin-2-one with readily available anhydrides RC(O)OC(O)R (R = Me, Et, 2-methylpropyl, etc.) or alkyl carboxylic acids R¹C(O)OH (R¹ = nonyl, cyanoethyl, cyclohexyl, etc.) is introduced. The reaction proceeds via substrate decarbonylation. This approach merges C-H functionalization with readily available anhydrides, allowing for the efficient synthesis of various C6-alkylated 2-pyridones e.g., 6-methyl-2H-[1,2′-bipyridin]-2-one with good functional group tolerance.

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., Application of C11H19NO4

Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem

Piperidine the name comes from the genus name Piper, which is the Latin word for pepper. 84358-13-4, formula is C11H19NO4, Name is 1-(tert-Butoxycarbonyl)piperidine-4-carboxylic acid. 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.

Zhang, Ziyi;Chen, Zhiguo;Zhang, Shengyu;Shao, Xiao;Zhou, Zhiwen research published 《 Antibacterial activity of the structurally novel ocotillol-type lactone and its analogues》, the research content is summarized as follows. A novel series of ocotillol-type lactone derivatives were designed and synthesized in order to study their antibacterial activity and structure-activity relationships. Among which, compounds 4j and 4 m were found to be the most active with min. inhibitory concentrations (MICs) of 1-4 μg/mL against Gram-pos. bacteria and showed low cytotoxicity against MCF-7, HEK-293 and HK-2 cells at their MICs. The antibacterial effect of compound 4 m was characterized further by SEM, cytoplasmic β-galactosidase leakage assay and UV-visible anal. The results showed that 4 m may exert its antibacterial effect by damaging bacterial cell membranes and disrupting the function of DNA, both of which could lead to rapid cell death.

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., Category: piperidines

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. 84358-13-4, formula is C11H19NO4, Name is 1-(tert-Butoxycarbonyl)piperidine-4-carboxylic acid. Pyridine can also be reduced to piperidine via a modified Birch reduction using sodium in ethanol. Quality Control of 84358-13-4.

Zhang, Zhucheng;He, Qian;Zhang, Xiaofei;Yang, Chunhao research published 《 Photoredox-catalysed regioselective synthesis of C-4-alkylated pyridines with N-(acyloxy)phthalimides》, the research content is summarized as follows. A method of direct C-4 selective alkylation of pyridines under visible light irradiation at room temperature was reported using simple maleate-derived pyridinium salts as pyridine precursors and the readily available carboxylic acid-derived N-(acyloxy)phthalimides as alkyl radical precursors, affording good to excellent yields without using stoichiometric oxidants and acids. A broad range of primary, secondary and tertiary carboxylates were used as alkylation reagents. Oxidant and acid-sensitive functional groups were tolerated well.

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., Quality Control of 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. 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. COA of Formula: C5H11NO.

Zhang, Zhipeng;Cheng, Maojun;Guo, Jie;Wan, Yang;Wang, Rikang;Fang, Yuanying;Jin, Yi;Xie, Sai-Sai;Liu, Jing research published 《 Design, synthesis and biological evaluation of novel pyrazolone derivatives as selective butyrylcholinesterase inhibitors with antioxidant activity against Alzheimer’s disease》, the research content is summarized as follows. The pyrazolone structure was found to be a promising pharmacophore targeting BuChE. A series of pyrazolone-based compounds I (n = 2, 10, 16, etc.; R¹ = R² = Et, -(CH₂)₅-, -CHCH₃(CH₂)₄-, -(CH₂)₄-, etc.) was designed, synthesized and evaluated in vitro for BuChE inhibitory activities, antioxidant activities and blood-brain barrier (BBB) permeabilities. Besides, the compounds (n = 10, 12, 14, R¹R² = (CH₂)₅; n = 14, R¹R² = (CH₂)₄) with submicromolar IC₅₀ values as well as good BuChE selectivity were chosen to assess their cytotoxicity in PC12 cells. Compound I (n = 14; R¹R² = -(CH₂)₅-) (II) was the most selective BuChE inhibitor (SI:>200) and showed the good abilities to penetrate BBB, scavenge free radicals (1.04 trolox equivalent). Based on above results, compound (II) was selected for mol. docking studies to explain the BuChE selectivity and was considered as a promising lead compound for further investigation in the treatment of AD.

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. 5382-16-1, formula is C5H11NO, Name is 4-Piperidinol. Other examples are the fire ant toxin solenopsin, the nicotine analog anabasine of tree tobacco (Nicotiana glauca), lobeline of Indian tobacco. Application In Synthesis of 5382-16-1.

Zhang, Zhe;Zhang, Zhao-Sheng;Wang, Xiao;Xi, Gao-Lei;Jin, Zhen;Tang, You-Zhi research published 《 A click chemistry approach to pleuromutilin derivatives, evaluation of anti-MRSA activity and elucidation of binding mode by surface plasmon resonance and molecular docking》, the research content is summarized as follows. A series of pleuromutilin analogs containing substituted 1,2,3-triazole moieties I [R1 = Me, Ph, 3-fluorophenyl, etc.] and II [R2 = R3 = Me, cyclohexyl, etc.] were designed, synthesized and assessed for their in vitro antibacterial activity against Methicillin-resistant Staphylococcus aureus (MRSA). Initially, the in vitro antibacterial activities of these derivatives against 4 strains of S. aureus (MRSA ATCC 43300, ATCC 29213, AD3, and 144) were tested by the broth dilution method. Most of the synthesized pleuromutilin analogs displayed potent activities. Among them, compounds I [R1 = 2-methylphenyl, 2-nitrophenyl, 4-nitrophenyl] (MIC = 0.5∼1 μg/mL) showed the most effective antibacterial activity and their anti-MRSA activity were further studied by the time-killing kinetics approach. Binding mode investigations by surface plasmon resonance (SPR) with 50S ribosome revealed that the selected compounds all showed obvious affinity for 50S ribosome (K_D = 2.32 x 10^-8∼5.10 x 10^-5 M). Subsequently, the binding of compounds I [R1 = 2-methylphenyl, 4-nitrophenyl] to the 50S ribosome was further investigated by mol. modeling. Compound I [R1 = 2-methylphenyl] had a superior docking mode with 50S ribosome, and the binding free energy of compound was calculated to be -12.0 kcal/mol.

Application In Synthesis of 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., 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. 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. Electric Literature of 5382-16-1.

Zhang, Yuxia;Yang, Jiaxin;Meng, Tingting;Qin, Yajuan;Li, Tingyou;Fu, Junjie;Yin, Jian research published 《 Nitric oxide-donating and reactive oxygen species-responsive prochelators based on 8-hydroxyquinoline as anticancer agents》, the research content is summarized as follows. Metal ion chelators based on 8-hydroxyquinoline (8-HQ) have been widely explored for the treatment of many diseases. When aimed at being developed into potent anticancer agent, a largely unmet issue is how to avoid nonspecific chelation of metal ions by 8-HQ in normal cells or tissues. In the current work, a two-step strategy was employed to both enhance the anticancer activity of 8-HQ and improve its cancer cell specificity. Considering the well-known anticancer activity of nitric oxide (NO), NO donor furoxan was first connected to 8-HQ to construct HQ-NO conjugates. These conjugates were screened for their cytotoxicity, metal-binding ability, and NO-releasing efficiency. Selected conjugates were further modified with a ROS-responsive moiety to afford prochelators. Among all the target compounds, prodrug HQ-NO-11 was found to potently inhibit the proliferation of many cancer cells but not normal cells. The abilities of metal chelation and NO generation by HQ-NO-11 were confirmed by various methods and were demonstrated to be essential for the anticancer activity of HQ-NO-11. In vivo studies revealed that HQ-NO-11 inhibited the growth of SW1990 xenograft to a larger extent than 8-HQ. Our results showcase a general method for designing novel 8-HQ derivatives and shed light on obtaining more controllable metal chelators.

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., Electric Literature of 5382-16-1

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. Quality Control of 2403-88-5.

Zhang, Yunfei;Niu, Junfeng;Xu, Jianhui research published 《 Fe(II)-promoted activation of peroxymonosulfate by molybdenum disulfide for effective degradation of acetaminophen》, the research content is summarized as follows. This work demonstrated that Fe ion was an effective promoter of bulk MoS₂ to activate peroxymonosulfate (PMS) to degrade acetaminophen (ACT). The ACT removal rate constant in the presence of 5 mg/L FeSO₄·7H₂O (0.1099/min) was ∼20 times that in the absence of FeSO₄•7H₂O (0.0045/min) with 0.1 g/L MoS₂/FeSO₄·7H₂O at pH₀ 3. ESR characterization and quenching experiments suggested the key role of singlet oxygen (¹O₂), acting as dominant reactive species responsible for ACT degradation in the Fe²⁺/MoS₂/PMS system. The MoS₂ chem. state and composition, ion concentrations (Fe, Mo) concentrations, and Mo⁶⁺ speciation were examined Results suggested the Fe²⁺ promoting effect originated from Fe²⁺ regeneration mediated by MoS₂, and formation of the molybdenum(VI) peroxo complex species in the Fe²⁺/MoS₂/PMS system. This work provided insight into PMS activation by MoS₂ accelerated by Fe²⁺ and suggested a highly efficient, easy-to-handle, environment-friendly method to treat refractory wastewater.

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., Quality Control of 2403-88-5

Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem