Heterocyclic Building Blocks

Alfa Aesar™ Methyl 2-chloro-4-iodonicotinate, 97%

Chemical Name or Material: Methyl 2-chloro-4-iodonicotinate CAS: 185041-05-8 Molecular Formula: C7H5ClINO2 Formula Weight: 297.48 MDL Number: MFCD04039871 Synonym: 2-Chloro-4-iodonicotinic acid methyl ester; Methyl 2-chloro-4-iodopyridine-3-carboxylate

Alfa Aesar™ 2-Chloro-5-fluoro-6-methylpyridine, 95%

Chemical Name or Material: 2-Chloro-5-fluoro-6-methylpyridine CAS: 884494-78-4 Formula Weight: 145.56 MDL Number: MFCD04972391 Beilstein: 13638700 Synonym: 2-Chloro-5-fluoro-6-picoline

Alfa Aesar™ 4-(4-Morpholinylmethyl)benzeneboronic acid pinacol ester, 97%

Chemical Name or Material: 4-(4-Morpholinylmethyl)benzeneboronic acid pinacol ester CAS: 364794-79-6 Molecular Formula: C17H26BNO3 Formula Weight: 303.2 MDL Number: MFCD04974052 Synonym: 4-[4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl]morpholine

Alfa Aesar™ 2-Aminobenzimidazole, 97+%

Chemical Name or Material: 2-Aminobenzimidazole CAS: 934-32-7 Molecular Formula: C7H7N3 Formula Weight: 133.15 MDL Number: MFCD00005596 Beilstein: 116525 Synonym: 1H-Benzimidazol-2-amine

Melamine, 99%, ACROS Organics™

Chemical Name or Material: Melamine CAS: 108-78-1 Assay: ≥98.5% Assay Percent Range: 99% Molecular Formula: C3H6N6 Formula Weight: 126.12 MDL Number: MFCD00006055 Synonym: 2, 4, 6-Triamino-s-triazine

Alfa Aesar™ Ethyl 3-(4-amino-3-pyridyl)acrylate

Chemical Name or Material: Ethyl 3-(4-amino-3-pyridyl)acrylate CAS: 104830-07-1 Molecular Formula: C10H12N2O2 Formula Weight: 192.22 MDL Number: MFCD07781149 Synonym: 3-(4-Amino-3-pyridyl)acrylic acid ethyl ester

Alfa Aesar™ 5-Amino-6-nitroquinoline, 97%

Chemical Name or Material: 5-Amino-6-nitroquinoline CAS: 35975-00-9 Molecular Formula: C9H7N3O2 Formula Weight: 189.17 MDL Number: MFCD00006798 Beilstein: 166360

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

Alfa Aesar™ 2,5-Dimethyl-1-phenylpyrrole-3-carboxaldehyde, 98+%

Chemical Name or Material: 2,5-Dimethyl-1-phenylpyrrole-3-carboxaldehyde CAS: 83-18-1 Molecular Formula: C13H13NO Formula Weight: 199.25 MDL Number: MFCD00051494 Beilstein: 144790

1-(2-Pyridyl)piperazine, 98%, ACROS Organics™

Chemical Name or Material: 1-(2-Pyridyl)piperazine CAS: 34803-66-2 CAS Min %: 97.5 CAS Max %: 100.0 Assay: ≥97.5% Assay Percent Range: 98% Molecular Formula: C9H13N3 Formula Weight: 163.22

Alfa Aesar™ Nalpha,Nepsilon-Di-Boc-L-lysine N-succinimidyl ester, 97%

Chemical Name or Material: Nalpha,Nepsilon-Di-Boc-L-lysine N-succinimidyl ester CAS: 30189-36-7 Formula Weight: 443.49 MDL Number: MFCD00057898 Beilstein: 1559007 Synonym: Boc-Lys(Boc)-OSu; Nα,Nε-Di-Boc-L-lysine N-hydroxysuccinimide ester

Alfa Aesar™ 2-Aminobenzothiazole, 98%

Chemical Name or Material: 2-Aminobenzothiazole CAS: 136-95-8 Molecular Formula: C7H6N2S Formula Weight: 150.2 MDL Number: MFCD00005785 Beilstein: 116315 Merck Index: 14,424

Alfa Aesar™ 3-Furonitrile, 98%

Chemical Name or Material: 3-Furonitrile CAS: 30078-65-0 Molecular Formula: C5H3NO Formula Weight: 93.09 MDL Number: MFCD00067042 UN Number: UN2926 Beilstein: 507009 Synonym: 3-Cyanofuran; Furan-3-carbonitrile

Alfa Aesar™ 2-Amino-4-(1-naphthyl)thiazole, 97%

Chemical Name or Material: 2-Amino-4-(1-naphthyl)thiazole CAS: 56503-96-9 Molecular Formula: C13H10N2S Formula Weight: 226.3 MDL Number: MFCD00236016 Beilstein: 164858 Synonym: 4-(1-Naphthyl)-2-thiazolamine

Alfa Aesar™ 3-Aminooxetane, 95%

Chemical Name or Material: 3-Aminooxetane CAS: 21635-88-1 Formula Weight: 73.09 MDL Number: MFCD08544363 UN Number: UN1993

Alfa Aesar™ Furfuryl isothiocyanate, 97%

Chemical Name or Material: Furfuryl isothiocyanate CAS: 4650-60-6 Molecular Formula: C6H5NOS Formula Weight: 139.18 MDL Number: MFCD00014112 UN Number: UN2922 Beilstein: 1281561

Alfa Aesar™ 1-(trans-Cinnamoyl)imidazole, 98%

Chemical Name or Material: 1-(trans-Cinnamoyl)imidazole CAS: 1138-15-4 Molecular Formula: C12H10N2O Formula Weight: 198.23 MDL Number: MFCD00005288 Beilstein: 608846

ethyle5-nitroindole-2-carboxylate, 95%, ACROS Organics™

Chemical Name or Material: Ethyl 5-nitroindole-2-carboxylate CAS: 16732-57-3 Assay: ≥94% Assay Percent Range: 95% Molecular Formula: C11H10N2O4 Formula Weight: 234.21 MDL Number: MFCD00216477

N-(2-Hydroxyethyl)piperazine 98.5%, ACROS Organics™

Chemical Name or Material: N-(2-Hydroxyethyl)piperazine Name Note: 98.5% CAS: 103-76-4 CAS Min %: 98.0 CAS Max %: 100.0 Assay: ≥98.0% Assay Percent Range: 98.50% Molecular Formula: C6H14N2O Formula Weight: 130.19 MDL Number: MFCD00005970 Synonym: 1-Piperazineethanol

Alfa Aesar™ 3-Chloro-4-(pentafluoroethyl)pyridine, 96%

Chemical Name or Material: 3-Chloro-4-(pentafluoroethyl)pyridine Formula Weight: 231.55

Alfa Aesar™ Thiophene-3-carboxaldoxime, 98%

Chemical Name or Material: Thiophene-3-carboxaldoxime CAS: 42466-50-2 Molecular Formula: C5H5NOS Formula Weight: 127.17 MDL Number: MFCD00151853 Beilstein: 108818

Alfa Aesar™ 2-Methylpiperidine, 98+%

Chemical Name or Material: 2-Methylpiperidine CAS: 109-05-7 Molecular Formula: C6H13N Formula Weight: 99.18 MDL Number: MFCD00005982 UN Number: UN2733 Beilstein: 79804 Synonym: 2-Pipecoline

(S)-(+)-1-Benzyl-3-aminopyrrolidine, 99%, ACROS Organics™

Chemical Name or Material: (S)-(+)-1-Benzyl-3-aminopyrrolidine CAS: 114715-38-7 CAS Min %: 98.5 CAS Max %: 100.0 Assay: ≥98.5% Assay Percent Range: 99% Molecular Formula: C11H16N2 Formula Weight: 176.26

Alfa Aesar™ Potassium 5-formylthiophene-2-trifluoroborate, 97%

Chemical Name or Material: Potassium 5-formylthiophene-2-trifluoroborate CAS: 1025113-78-3 Molecular Formula: C5H3BF3KOS Formula Weight: 218.05 MDL Number: MFCD09800740

Alfa Aesar™ Tetrahydro-4H-thiopyran-4-one, 99%

Chemical Name or Material: Tetrahydro-4H-thiopyran-4-one CAS: 1072-72-6 Molecular Formula: C5H8OS Formula Weight: 116.18 MDL Number: MFCD00006660 Synonym: 4-Oxothiane; 4-Thiacyclohexanone

Imidazole, ACS reagent, ACROS Organics™

Chemical Name or Material: Imidazole Name Note: For analysis ACS CAS: 288-32-4 Purity Grade: ACS Reagent Grade Assay: ≥99% Molecular Formula: C3H4N2 Formula Weight: 68.08 MDL Number: MFCD00005183 Synonym: Glyoxaline

7-Hydroxy-4-methylcoumarin 97%, ACROS Organics™

Chemical Name or Material: 7-Hydroxy-4-methylcoumarin Name Note: 97% CAS: 90-33-5 CAS Min %: 96.0 CAS Max %: 100.0 Purity Grade: Extra Pure Assay: ≥96.0% Assay Percent Range: 97% Molecular Formula: C10H8O3 Formula Weight: 176.17 MDL Number: MFCD00006866 Synonym: β-Methylumbelliferone

Alfa Aesar™ 1,1'-Thiocarbonyldiimidazole, tech 90%

Chemical Name or Material: 1,1'-Thiocarbonyldiimidazole CAS: 6160-65-2 Purity Grade: Technical Grade Molecular Formula: C7H6N4S Formula Weight: 178.22 MDL Number: MFCD00005289 Beilstein: 609349

2-Amino-5-bromo-4-(trifluoromethyl)pyridine, 97%, ACROS Organics™

Chemical Name or Material: 2-Amino-5-bromo-4-(trifluoromethyl)pyridine CAS: 944401-56-3 CAS Min %: 96.0 CAS Max %: 100.0 Assay: ≥94.0% Assay Percent Range: 97% Molecular Formula: C6H4BrF3N2 Formula Weight: 241.01 MDL Number: MFCD09864896

Alfa Aesar™ 2,6-Dibromopyrazine, 95%

Chemical Name or Material: 2,6-Dibromopyrazine CAS: 23229-25-6 Formula Weight: 237.88 MDL Number: MFCD08061601

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