Heterocyclic Building Blocks

N-Methylpiperidine 99%, ACROS Organics™

Chemical Name or Material: N-Methylpiperidine Name Note: 99% CAS: 626-67-5 CAS Min %: 98.5 CAS Max %: 100.0 Assay: 99% Assay Percent Range: 99% Molecular Formula: C6H13N Formula Weight: 99.18 MDL Number: MFCD00006491 Synonym: 1-Methylpiperidine 10ML N-Methylpiperidine, 99%

1,4-Dioxane, 99.8%, Extra Dry, stabilized, AcroSeal™, ACROS Organics™

Chemical Name or Material: 1,4-Dioxane Name Note: Water <50ppm CAS: 123-91-1 CAS Min %: 99.75 CAS Max %: 100.0 Purity Grade: Extra Dry Assay: 99.8% Assay Percent Range: 99.8% Molecular Formula: C4H8O2 Formula Weight: 88.11 Synonym: Diox 2.5LT 1,4-Dioxane, 99.8%, Extra Dry, stabilized, AcroSeal

1,8-Diazabicyclo[5.4.0]undec-7-ene, 98+%, Acros Organics™

Chemical Name or Material: 1,8-Diazabicyclo[5.4.0]undec-7-ene Name Note: ≥98% CAS: 6674-22-2 CAS Min %: 97.5 CAS Max %: 100.0 Assay: ≥98% Assay Percent Range: ≥98% Molecular Formula: C9H16N2 Formula Weight: 152.24 MDL Number: MFCD00006930 Synonym: 2, 3, 4 2.5KG 1,8-Diazabicyclo¢5.4.0!undec-7-ene, 98%

Pyridine, 99.5%, Extra Dry over Molecular Sieve, AcroSeal™, ACROS Organics™

Chemical Name or Material: Pyridine Name Note: Over Molecular Sieves CAS: 110-86-1 Purity Grade: Extra Dry over Molecular Sieve Assay: 99.5% Assay Percent Range: 99.5% Molecular Formula: C5H5N Formula Weight: 79.1 MDL Number: MFCD00011732 2.5LT Pyridine, 99.5%, Extra Dry over Molecular Sieve, AcroSeal

MBD, 98%, Acros Organics™

Chemical Name or Material: MBD Assay: 98% Assay Percent Range: 98% Molecular Formula: C14H12N4O4 Formula Weight: 300.26 Synonym: 7-(4-Methoxybenzylamino)-4-nitrobenzoxadiazole 5GR MBD, 98%

Caffeine, 98.5%, USP/BP, ACROS Organics™

Chemical Name or Material: Caffeine Name Note: 98.5% CAS: 58-08-2 Assay: 98.5% Assay Percent Range: 98.5% Molecular Formula: C8H10N4O2 Formula Weight: 194.19 MDL Number: MFCD00005758 Synonym: 3,7-Dihydro-1,3,7-trimethyl-1H-purine-2,6-dione 500GR Caffeine, 98.5%, specified according to thereq. of USP/BP

1-Methyl-2-pyrrolidinone, 99.5%, Extra Dry, AcroSeal™, ACROS Organics™

Chemical Name or Material: 1-Methyl-2-pyrrolidinone CAS: 872-50-4 CAS Min %: 99.4 CAS Max %: 100.0 Purity Grade: Extra Dry Assay: 99.5% Assay Percent Range: 99.5% Molecular Formula: C5H9NO Formula Weight: 99.13 MDL Number: MFCD00003193 Synonym: N-Methylpyrrolidone 100ML 1-Methyl-2-pyrrolidinone, 99.5%, Extra Dry,AcroSeal

4-Dimethylaminopyridine, 99%, ACROS Organics™

Chemical Name or Material: 4-Dimethylaminopyridine CAS: 1122-58-3 CAS Min %: 98.5 CAS Max %: 100.0 Assay Percent Range: 99% Molecular Formula: C7H10N2 Linear Formula: (C5H4N)N(CH3)2 Formula Weight: 122.17 MDL Number: MFCD00006418 Synonym: 4-DMAP 500GR 4-Dimethylaminopyridine, 99%

Propidium iodide, 95%, Acros Organics

Chemical Name or Material: Propidium iodide Assay Percent Range: 95% Molecular Formula: C27H34I2N4 Formula Weight: 668.39 25MG Propidium iodide, 95%

Isatin 98%, ACROS Organics™

Chemical Name or Material: Isatin Name Note: 98% CAS: 91-56-5 Assay: ≥97.5% Assay Percent Range: 98% Molecular Formula: C8H5NO2 Formula Weight: 147.13 MDL Number: MFCD00005718 Synonym: 2, 3-Indolinedione 100GR Isatin, 98%

4-Vinylpyridine, Stabilized 95%, ACROS Organics™

Chemical Name or Material: 4-Vinylpyridine Name Note: 95% CAS: 100-43-6 CAS Min %: 94.0 CAS Max %: 100.0 CAS: 123-31-9 Assay: 95% Assay Percent Range: 95% Molecular Formula: C7H7N Linear Formula: (C5H4N)CH=Ch2 Formula Weight: 105.14 MDL Number: MFCD00006447 100ML 4-Vinylpyridine, 95%, stabilized

2-Vinylpyridine, Stabilized 97%, ACROS Organics™

Chemical Name or Material: 2-Vinylpyridine Name Note: 97% CAS: 100-69-6 CAS Min %: 96.0 CAS Max %: 100.0 Assay: ≥96.0% Assay Percent Range: 97% Molecular Formula: C7H7N Linear Formula: (C5H4N)CH=CH2 Formula Weight: 105.14 MDL Number: MFCD00006355 250ML 2-Vinylpyridine, 97%, stabilized

2-Chloro-3-pyridinol, 98%, ACROS Organics™

Chemical Name or Material: 2-chloro-3-pyridinol CAS: 6636-78-8 CAS Min %: 97.5 CAS Max %: 100.0 Assay: ≥97.5% Assay Percent Range: 98% Molecular Formula: C5H4ClNO Linear Formula: Cl(C5H3N)OH Formula Weight: 129.55 MDL Number: MFCD00006235 100GR 2-Chloro-3-pyridinol, 98%

1-Octyl-3-methylimidazolium hexafluorophosphate, 98+%, ACROS Organics™

Chemical Name or Material: 1-Octyl-3-methylimidazolium hexafluorophosphate CAS: 304680-36-2 CAS Min %: 98.0 CAS Max %: 100.0 Assay Percent Range: 98+% Molecular Formula: C12H23N2·PF6 Formula Weight: 340.29 MDL Number: MFCD03427617 25GR 1-Octyl-3-methylimidazolium hexafluorophosphate, 98+%

Phenazine methosulfate, 98%, ACROS Organics™

Chemical Name or Material: Phenazine methosulfate Name Note: 99% CAS: 299-11-6 Assay Percent Range: 98% Molecular Formula: C13H11N2·CH3O4S Formula Weight: 306.33 MDL Number: MFCD00011923 Synonym: N-Methylphenazonium methosulfate 10GR Phenazine methosulfate, 98%

Isonicotinic acid, 99%, ACROS Organics™

Chemical Name or Material: Isonicotinic acid CAS: 55-22-1 Physical Form: Powder Assay Percent Range: 99% Molecular Formula: C6H5NO2 Formula Weight: 123.11 Synonym: 4-Pyridinecarboxylic acid 500GR Isonicotinic acid, 99%

2-Chloropyrimidine, 98+%, ACROS Organics™

Chemical Name or Material: 2-Chloropyrimidine Assay: ≥98% Assay Percent Range: 98+% Molecular Formula: C4H3ClN2 Formula Weight: 114.53 250GR 2-Chloropyrimidine, 98+%

4-Hydroxycarbazole, 98+%, ACROS Organics™

Chemical Name or Material: 4-Hydroxycarbazole CAS: 52602-39-8 CAS Min %: 98.0 CAS Max %: 100.0 Assay: ≥98.0% Assay Percent Range: 98+% Molecular Formula: C12H9NO Formula Weight: 183.21 MDL Number: MFCD02178385 5GR 4-Hydroxycarbazole, 98+%

Alfa Aesar™ N-(2-Chloro-4-pyridyl)thiourea, 98+%

Chemical Name or Material: N-(2-Chloro-4-pyridyl)thiourea Molecular Formula: C6H6ClN3S Formula Weight: 187.65 MDL Number: MFCD20721281 5GR N-(2-Chloro-4-pyridyl)thiourea, 98+% 5g

Alfa Aesar™ 2-(3-Pyridyl)benzimidazole, 97%

Chemical Name or Material: 2-(3-Pyridyl)benzimidazole CAS: 1137-67-3 Molecular Formula: C12H9N3 Formula Weight: 195.22 MDL Number: MFCD00022665 25GR 2-(3-Pyridyl)benzimidazole, 97% 25g

Alfa Aesar™ 3-Bromo-4-methylpyridine, 98%

Chemical Name or Material: 3-Bromo-4-methylpyridine CAS: 3430-22-6 Molecular Formula: C6H6BrN Formula Weight: 172.03 MDL Number: MFCD00082592 Beilstein: 878354 Synonym: 3-Bromo-4-picoline 3-BROMO-4-METHYLPYRIDINE, 98%,5G

5-Amino-2-methyl-1,3-benzoxazole, 97%, ACROS Organics™

Chemical Name or Material: 5-Amino-2-methyl-1, 3-benzoxazole CAS: 72745-76-7 CAS Min %: 96.0 CAS Max %: 100.0 Assay: ≥96.0% Assay Percent Range: 97% Molecular Formula: C8H8N2O Formula Weight: 148.17 1GR 5-Amino-2-methyl-1,3-benzoxazole, 97%

Alfa Aesar™ 4-(2-Thiazolinylcarbamoyl)benzeneboronic acid, 97%

Chemical Name or Material: 4-(2-Thiazolinylcarbamoyl)benzeneboronic acid CAS: 850568-30-8 Molecular Formula: C10H11BN2O3S Formula Weight: 250.08 MDL Number: MFCD06659881 Synonym: 4-[(4,5-Dihydrothiazol-2-yl)aminocarbonyl]phenylboronic acid 250MG 4-(2-Thiazolinylcarbamoyl)benzeneboronic acid, 97% 250mg

Alfa Aesar™ 4-Methylquinoline-2-thiol, 96%

Chemical Name or Material: 4-Methylquinoline-2-thiol CAS: 4437-65-4 Molecular Formula: C10H9NS Formula Weight: 175.25 MDL Number: MFCD00461554 250MG 4-Methylquinoline-2-thiol, 96% 250mg

Alfa Aesar™ 1-Boc-3-hydroxyazetidine, 97%

Chemical Name or Material: 1-Boc-3-hydroxyazetidine CAS: 141699-55-0 Molecular Formula: C8H15NO3 Formula Weight: 173.21 MDL Number: MFCD04115305 Synonym: 1-Boc-3-azetidinol; tert-Butyl 3-hydroxyazetidine-1-carboxylate 1-BOC-3-HYDROXYAZETIDINE, 97% 1G

Alfa Aesar™ 1-(2-Chloro-6-nitrophenyl)piperidine, 97%

Chemical Name or Material: 1-(2-Chloro-6-nitrophenyl)piperidine CAS: 3970-42-1 Formula Weight: 240.69 Beilstein: 1317515 1GR 1-(2-Chloro-6-nitrophenyl)piperidine, 97% 1g

Alfa Aesar™ 5-Methoxybenzofuroxan, 97%

Chemical Name or Material: 5-Methoxybenzofuroxan CAS: 7791-49-3 Molecular Formula: C7H6N2O3 Formula Weight: 166.14 MDL Number: MFCD00068052 Beilstein: 643053 Synonym: 5-Methoxybenzofurazan-1-oxide 5-METHOXYBENZOFURAZAN-1-OXIDE, 98%,5G

Alfa Aesar™ 2-Chloro-N-(3-fluorophenyl)pyridine-4-carboxamide, 95%

Chemical Name or Material: 2-Chloro-N-(3-fluorophenyl)pyridine-4-carboxamide CAS: 1019323-09-1 Molecular Formula: C12H8ClFN2O Formula Weight: 250.65 MDL Number: MFCD11128632 Synonym: 2-Chloro-N-(3-fluorophenyl)isonicotinamide 250MG 2-Chloro-N-(3-fluorophenyl)pyridine-4-carboxamide, 95% 250mg

Alfa Aesar™ Ethyl 2-aminothiazole-4-carboxylate, 98%

Chemical Name or Material: Ethyl 2-aminothiazole-4-carboxylate CAS: 5398-36-7 Molecular Formula: C6H8N2O2S Formula Weight: 172.21 MDL Number: MFCD00619079 1GR Ethyl 2-aminothiazole-4-carboxylate, 98% 1g

Alfa Aesar™ Ethyl 3-(4-amino-5-bromo-3-pyridyl)acrylate, 96%

Chemical Name or Material: Ethyl 3-(4-amino-5-bromo-3-pyridyl)acrylate CAS: 912760-87-3 Molecular Formula: C10H11BrN2O2 Formula Weight: 271.12 MDL Number: MFCD07781150 Synonym: 3-(4-Amino-5-bromo-3-pyridyl)acrylic acid ethyl ester ETHYL 3-(4-AMINO-5-BROMOPYRIDIN-3-YL)ACRYLATE1G

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