Heterocyclic Building Blocks

Rutin, 97+%, ACROS Organics™

Chemical Name or Material: Rutin Name Note: 97.0-102.0% CAS: 153-18-4 Assay: ≥97% Assay Percent Range: 97+% Molecular Formula: C27H30O16·3H2O Formula Weight: 664.58 MDL Number: MFCD00006830 Synonym: C.I. 75730 500GR Rutin, 97+%

1,4-Dioxane, 99.5%, Extra Dry over Molecular Sieve, AcroSeal™, ACROS Organics™

Chemical Name or Material: 1, 4-Dioxane Name Note: Over Molecular Sieves CAS: 123-91-1 CAS Min %: 99.4 CAS Max %: 100.0 Purity Grade: Extra Dry over Molecular Sieve Assay: 99.5% Assay Percent Range: 99.5% Molecular Formula: C4H8O2 Formula Weight: 88.11 MDL Number: MFCD00006571 Synonym: Diox 2.5LT 1,4-Dioxane, 99.5%, Extra Dry over Molecular Sieve, stabilized, AcroSeal

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%

2,4-Pyridinedicarboxylic Acid +99%, ACROS Organics™

Chemical Name or Material: 2, 4-Pyridinedicarboxylic acid hydrate Name Note: 99+% CAS: 499-80-9 CAS Min %: 99.0 CAS Max %: 100.0 Assay: ≥99.0% (on dry substance) Assay Percent Range: 99+% Molecular Formula: C7H5NO4·xH2O Linear Formula: (C5H3N)(COOH)2·xH2O Formula Weight: 167.12 MDL Number: MFCD00149413 1GR 2,4-Pyridinedicarboxylic acid hydrate, 99+%

L-Histidine, 98%, ACROS Organics™

Chemical Name or Material: L-Histidine CAS: 71-00-1 Assay: 98% Assay Percent Range: 98% Molecular Formula: C6H9N3O2 Formula Weight: 155.16 MDL Number: MFCD00064315 Synonym: His 500GR L-Histidine, 98%

2-Imidazolidone hemihydrate, 99+%, ACROS Organics™

Chemical Name or Material: 2-Imidazolidone hemihydrate CAS: 121325-67-5 CAS Min %: 99.0 CAS Max %: 100.0 CAS: 120-93-4 Assay: ≥99% Assay Percent Range: 99+% Molecular Formula: 0·5 H2O Formula Weight: 95.1 MDL Number: MFCD02662355 Synonym: 2-Imidazolidinone hemihydrate 10KG 2-Imidazolidone hemihydrate, 99+%

2,5-Pyridinedicarboxylic Acid 98%, ACROS Organics™

Chemical Name or Material: 2, 5-Pyridinedicarboxylic acid Name Note: 98% CAS: 100-26-5 CAS Min %: 97.5 CAS Max %: 100.0 Assay: ≥97.5% Assay Percent Range: 98% Molecular Formula: C7H5NO4 Linear Formula: (C5H3N)(COOH)2 Formula Weight: 167.12 MDL Number: MFCD00006297 Synonym: Isocinchomeronic acid 5GR 2,5-Pyridinedicarboxylic acid, 98%

Cyclopentene oxide, 98%, Acros Organics™

Chemical Name or Material: Cyclopentene oxide Assay: 98% Assay Percent Range: 98% Molecular Formula: C5H8O Formula Weight: 84.12 100GR Cyclopentene oxide, 98%

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

Eosin Y, pure, high purity, biological stain, ACROS Organics™

Chemical Name or Material: Eosin Y Name Note: High purity biological stain CAS: 17372-87-1 Purity Grade: Pure Molecular Formula: C20H6Br4Na2O5 Formula Weight: 691.85 MDL Number: MFCD00005040 Synonym: 2', 4', 5' 25GR Eosin Y, pure, high purity, biological stain

Guanine, 99+%, ACROS Organics™

Chemical Name or Material: Guanine CAS: 73-40-5 Assay: ≥99.0% (on dry substance) Assay Percent Range: 99+% Molecular Formula: C5H5N5O Formula Weight: 151.13 MDL Number: MFCD00071533 Synonym: 2-Amino-1, 7-dihydro-6H-purin-6-one 25GR Guanine, 99+%

2,6-Pyridinedimethanol, 98%, ACROS Organics™

Chemical Name or Material: 2, 6-Pyridinedimethanol CAS: 1195-59-1 CAS Min %: 97.5 CAS Max %: 100.0 Assay: 97.5 to 102.5% (total base) Assay Percent Range: 98% Molecular Formula: C7H9NO2 Linear Formula: (C5H3N)(CH2OH)2 Formula Weight: 139.15 MDL Number: MFCD00006351 Synonym: 2, 6-Pyridyldicarbinol 25GR 2,6-Pyridinedimethanol, 98%

1,4-Dioxane, 99+%, ACS reagent, stabilized, ACROS Organics™

Chemical Name or Material: 1, 4-Dioxane CAS: 123-91-1 CAS Min %: 99.0 CAS Max %: 100.0 Purity Grade: ACS Reagent Grade Assay: ≥99% Assay Percent Range: 99+% Molecular Formula: C4H8O2 Formula Weight: 88.11 MDL Number: MFCD00006571 Synonym: Diox 1LT 1,4-Dioxane, 99+%, ACS reagent, stabilized

N-(α,α,α-Trifluoro-p-tolyl)piperazine, 98%, ACROS Organics™

Chemical Name or Material: N-(α, α, α-Trifluoro-p-tolyl)piperazine Name Note: 98% CAS: 30459-17-7 CAS Min %: 97.5 CAS Max %: 100.0 Assay: 98% Assay Percent Range: 98% Molecular Formula: C11H13F3N3 Formula Weight: 230.23 MDL Number: MFCD00040765 Synonym: 1-(4-Trifluoromethylphenyl)piperazine 5GR N-(alpha,alpha,alpha-Trifluoro-p-tolyl)piperazine, 98%

Pyridine, 99+%, extra pure, ACROS Organics™

Chemical Name or Material: Pyridine CAS: 110-86-1 Purity Grade: Extra Pure Assay: ≥99% Assay Percent Range: 99+% Molecular Formula: C5H5N Formula Weight: 79.1 MDL Number: MFCD00011732 2.5LT Pyridine, 99+%, extra pure

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

Alfa Aesar™ 4-(2-Bromophenylsulfonyl)morpholine, 97%

Chemical Name or Material: 4-(2-Bromophenylsulfonyl)morpholine CAS: 688798-57-4 Molecular Formula: C10H12BrNO3S Formula Weight: 306.17 MDL Number: MFCD09340792 250MG 4-(2-Bromophenylsulfonyl)morpholine, 97% 250mg

1H-Benzimidazole-5-carboxylic acid, 98%, ACROS Organics™

Chemical Name or Material: 1H-Benzimidazole-5-carboxylic acid Name Note: 98% CAS: 15788-16-6 CAS Min %: 97.5 CAS Max %: 100.0 Assay: ≥97.5% (on dry substance) Assay Percent Range: 98% Molecular Formula: C8H6N2O2 Formula Weight: 162.15 MDL Number: MFCD00011555 5GR 1H-Benzimidazole-5-carboxylic acid, 98%

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