Analytical grade methoxyamine hydrochloride, methanol, ethanol, chloroform, and pyridine were obtained from China National Pharmaceutical Group Corporation in Shanghai of China. N,O-Bis(trimethylsilyl)trifluoroacetamide (BSTFA:TMCS, 99 : 1), heptadecanoic acid and urease were purchased from Sigma-Aldrich. Liquor (56 %, v/v, 00215) was obtained from Beijing Red Star, China. Double-distilled water was produced by a Milli-Q Ultra-pure water system (Millipore Corporation, United States). Dry S. baicalensis and B. chinense were purchased from Inner Mongolia and An’hui was identified as S. baicalensis Georgi and B. chinense DC by Dr. Lihong Wu of Shanghai University of Traditional Chinese Medicine. Baicalin and Saikosaponin were purchased from Ciyuan Biotechnology (Shanxi, China).
Pyridine
Manufactured by Sinopharm
Sourced in China
Pyridine is a colorless, flammable liquid that is widely used as a chemical reagent in various industrial and laboratory applications. It serves as a precursor for the synthesis of many organic compounds and pharmaceutical intermediates. Pyridine is also a common solvent and exhibits a characteristic pungent odor.
Automatically generated - may contain errors
Lab products found in correlation
Chloroform, by Sinopharm (8 mentions)
Sodium hydroxide (naoh), by Sinopharm (8 mentions)
Ethanol, by Sinopharm (6 mentions)
N n dimethylformamide (dmf), by Sinopharm (5 mentions)
Acetone, by Sinopharm (5 mentions)
Sodium chloride (nacl), by Sinopharm (4 mentions)
Methanol, by Sinopharm (3 mentions)
Methanol, by Merck Group (3 mentions)
Dimethyl sulfoxide (dmso), by Sinopharm (3 mentions)
Tetrahydrofuran, by Sinopharm (3 mentions)
N hexane, by Sinopharm (3 mentions)
Hydrochloric acid (hcl), by Sinopharm (3 mentions)
Dichloromethane, by Sinopharm (3 mentions)
Toluene, by Sinopharm (3 mentions)
Calcium chloride dihydrate, by Sinopharm (2 mentions)
Ethylene diamine tetraacetic acid (edta), by Sinopharm (2 mentions)
Acetic anhydride, by Sinopharm (2 mentions)
Phenol, by Sinopharm (2 mentions)
3 4 5 dimethylthiazol 2 yl 2 5 diphenyltetrazolium bromide mtt, by Merck Group (2 mentions)
Anhydrous ethanol, by Sinopharm (2 mentions)
37 protocols using pyridine
1
Metabolomic Analysis of Traditional Chinese Herbs
2
Coptidis Rhizome Characterization
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Coptidis Rhizome was purchased from Zhixin Medicine Health co., Ltd (Guangzhou, China), and identified by Prof. Ling Jiang (School of Pharmaceutical Sciences, Sun Yat-sen University). D2O (with 0.05% sodium 3-trimethylsilyl-(2, 2, 3, 3-2H4)-1-propionate, TSP), Bis (Trimethylsilyl) -Trifluo-roacetamide (BSTFA, with 1% Trimethylchlorosilane, TMCS) and heptadecanoic acid were purchased from Sigma-Aldrich. Pyridine and chloroform were GC grade from China National Pharmaceutical Group Corporation (Shanghai, China).
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Coptidis Rhizome was purchased from Zhixin Medicine Health co., Ltd (Guangzhou, China), and identified by Prof. Ling Jiang (School of Pharmaceutical Sciences, Sun Yat-sen University). D2O (with 0.05% sodium 3-trimethylsilyl-(2, 2, 3, 3-2H4)-1-propionate, TSP), Bis (Trimethylsilyl) -Trifluo-roacetamide (BSTFA, with 1% Trimethylchlorosilane, TMCS) and heptadecanoic acid were purchased from Sigma-Aldrich. Pyridine and chloroform were GC grade from China National Pharmaceutical Group Corporation (Shanghai, China).
3
Chromatographic Analysis of n-Alkanes
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The hexane was acquired from Fisher Scientific (FL, NJ, USA). Calcium chloride dihydrate, sodium chloride, pyridine and EDTA were obtained from Sinopharm Chemical Reagent Co., Ltd. (Shanghai, China). Chromatographic-grade acetonitrile, acetic acid and methanol were purchased from Merck (Darmstadt, Germany). N-alkanes (C8-C20) and all standards were purchased from Shanghai Aladdin Biochemical Technology Co., Ltd. (Shanghai, China) and Sigma-Aldrich (St. Louis, MO, USA).
4
Lignin Purification and Characterization
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Alkali lignin (AL), product number L0082, was purchased from TCI Shanghai Co., Ltd. (Shanghai, China). The lignin was washed with aqueous 2 M hydrochloride acid and filtered in a sand core filter funnel, and then repeatedly washed with excess water until neutral. The filtered lignin was dried overnight in a vacuum oven at 40 °C and stored in a tightly sealed container. HBr (48 wt.%), HI (48 wt.%), phenol, formaldehyde (37 wt.%), ether, pyridine, acetic anhydride, N,N-dimethylformamide (DMF) and sodium hydroxide were AR grade reagents and purchased from Sinopharm Chemical Reagent Co. Ltd. (Shanghai, China).
5
Synthesis of Borated Phenolic Foam
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Polyurethane foam was obtained from Langfang Zhuosheng Building Materials Co., Ltd. (Langfang, China), with an apparent density of 0.035 g/cm3. Borated phenolic resin was obtained from Anhui Tianyu Plastic Co., Ltd. (Bengbu, China) with a density of 1.30 g/cm3. 1,3,5-Triaminophenoxybenzene (TAB) was obtained from Shanghai Yuanye Biotechnology Co., Ltd. (Shanghai, China). Pyridine, acetic anhydride, acetone, ethanol and anhydrous N-methylpyrrolidinone (NMP) were purchased from Sinopharm Chemical Reagent Beijing Co., Ltd. (Beijing, China). 2,2′-Dimethylbenzidine (DMBZ) and biphenyl-3,3′,4,4′-tetracarboxylic dianydride (BPDA) were obtained from Shanghai Aladdin Industrial Co., Ltd. (Shanghai, China). Dianhydride was dried in vacuum at 125 °C for 24 h before use. All other reagents were used without further purification.
6
Synthesis of Diesel-like Fuel from Polystyrene Waste
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Acetic anhydride was obtained from Nanjing Chemical Reagent Co., Ltd. (Nanjing, China), and pyridine was purchased from Sinopharm Chemical Reagents Co., Ltd. (Shanghai, China). The 0# diesel oil was originated from Sinopec. Waste polystyrene was obtained from foam boards which were used in boxes by cutting into fine particles up to 3 mm in diameter. The crude oil samples are from Henan Oilfield of China. The basic physical parameters of obtained samples were listed in Table 1 .
7
Chemical Reagent Synthesis Protocol
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BPDA, DMBZ, dimethydimethoxysilane, 3-aminopropymethyl-dimethoxysilane, and 3-aminopropyltrimethoxysilane were purchased from Aladdin Chemical Reagent Co. (Aladdin, Shanghai, China). N-methyl-2-pyrrolidinone (NMP), anhydrous acetic anhydride, acetone, and pyridine were purchased from Sinopharm Chemical Reagent Co. Ltd. (Sinopharm Chemical, Shanghai, China). All reagents were used without further purification.
8
Synthesis of Chloronicotinic Acid Derivative
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All chemicals were purchased from commercial sources: 2-chloro-nicotinic acid, 3-chloro-2-methylaniline and p-toluenesulfonic acid were from Aladdin Industrial Corporation; pyridine and other solvents were from Sinopharm Chemical Reagent Co., Ltd, and were used as received.
9
Dasatinib-Cisplatin Drug Delivery System
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N, N-Dimethylformamide (DMF) was dried overnight with calcium hydride (98%, Aladdin), then distilled to use. Dasatinib (DAS) (99%) and O-(1H-benzotriazol-1-yl)- N,N,N',N'-tetramethyluronium tetrafluorob-orate (TBTU) (98%) and sodium diethyldithiocarbamate (98%) were obtained from Aladdin (Shanghai, China). Cisplatin (CP) was obtained from Shandong platinum source chemical Co. Ltd (Jinan, China). Anhydrous ethanol, hydrogen peroxide (30%), anhydrous ether, DMF, triethylamine (TEA), succinic anhydridedichloromethane (DCM), anhydrous methanol and pyridine were all purchased from Sinopharm Chemical Reagent Co., Ltd (Shanghai, China). Cell culture medium, trypsin and fetal bovine serum were bought from KeyGEN BioTECH (Nanjing, China). Poly(2-hydroxyethyl methacrylate) (PHEMA) and 3-(4, 5-dimethylthiazol-2-yl)−2, 5-diphenyl tetrazolium bromide (MTT) were bought from Sigma-Aldrich. Male ICR mice (SPF, 18–22 g) were obtained from Animal Center of Anhui Medical University (Hefei, China).
10
Ruthenium-Catalyzed RAFT Polymerization
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Unless otherwise stated, all chemicals obtained from commercial suppliers were used without further purification. [Ru(bda)(pic)(DMSO)] (pic = 4-picoline) precursor was prepared according to the reported procedures,29,34 (link) and the characterization result is shown in Fig. S3.† The characterization result of RAFT agent is detailed in the ESI (Fig. S3† ). 4-Vinyl pyridine (Sinopharm, 97%) was purified by distillation under reduced pressure over CaH2. Dimethyl sulfoxide (DMSO, Sinopharm, AR) and dimethylformamide (DMF, Sinopharm, AR) were first dried with anhydrous magnesium sulfate and then distilled under reduced pressure prior to use. Methanol (MeOH, Sinopharm, AR) and pyridine (Sinopharm, AR) were distilled over CaH2 just prior to use.
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