Heterocyclic Building Blocks

Alfa Aesar™ Ethyl 7-bromoimidazo[1,2-a]pyridine-2-carboxylate, 95%

Chemical Name or Material: Ethyl 7-bromoimidazo[1,2-a]pyridine-2-carboxylate CAS: 1187236-18-5 Molecular Formula: C10H9BrN2O2 Formula Weight: 269.1 MDL Number: MFCD11505036 Synonym: 7-Bromoimidazo[1,2-a]pyridine-2-carboxylic acid ethyl ester

Alfa Aesar™ 2-Methoxy-6-(methylamino)pyridine, 98%

Chemical Name or Material: 2-Methoxy-6-(methylamino)pyridine CAS: 88569-83-9 Molecular Formula: C7H10N2O Formula Weight: 138.17 MDL Number: MFCD00191557

Alfa Aesar™ 6-Fluoroquinoline, 97%

Chemical Name or Material: 6-Fluoroquinoline CAS: 396-30-5 Molecular Formula: C9H6FN Formula Weight: 147.15 MDL Number: MFCD01685512

Alfa Aesar™ 4-Nitronicotinic acid N-oxide, 97%

Chemical Name or Material: 4-Nitronicotinic acid N-oxide CAS: 1078-05-3 Molecular Formula: C6H4N2O5 Formula Weight: 184.11 MDL Number: MFCD03426925 Beilstein: 176825 Synonym: 4-Nitropyridine-3-carboxylic acid N-oxide

Alfa Aesar™ 5-Cyano-2-(3-methyl-2-pyridyl)-4-phenylthiazole, 97%

Chemical Name or Material: 5-Cyano-2-(3-methyl-2-pyridyl)-4-phenylthiazole Molecular Formula: C16H11N3S Formula Weight: 277.34 MDL Number: MFCD22682957 UN Number: UN3439

Alfa Aesar™ 2-Chloro-7-methoxy-4-methylquinoline, 97%

Chemical Name or Material: 2-Chloro-7-methoxy-4-methylquinoline CAS: 97892-67-6 Molecular Formula: C11H10ClNO Formula Weight: 207.66 MDL Number: MFCD00711757

Alfa Aesar™ N-(2,6-Dibromo-3-pyridyl)thiourea, 97+%

Chemical Name or Material: N-(2,6-Dibromo-3-pyridyl)thiourea Molecular Formula: C6H5Br2N3S Formula Weight: 310.99 MDL Number: MFCD22682809

Alfa Aesar™ 3-Chloro-4-(1-piperidinylcarbonyl)benzeneboronic acid, 98%

Chemical Name or Material: 3-Chloro-4-(1-piperidinylcarbonyl)benzeneboronic acid CAS: 850589-50-3 Molecular Formula: C12H15BClNO3 Formula Weight: 267.52 MDL Number: MFCD07363775 Synonym: 1-(4-Borono-2-chlorobenzoyl)piperidine

Alfa Aesar™ 5-Amino-2-bromo-3-methylpyridine, 98%

Chemical Name or Material: 5-Amino-2-bromo-3-methylpyridine CAS: 38186-83-3 Formula Weight: 187.04 MDL Number: MFCD03095085 UN Number: UN2811 Beilstein: 471832 Synonym: 5-Amino-2-bromo-3-picoline

Alfa Aesar™ 4-Chloro-2-(pentafluoroethyl)pyridine, 96%

Chemical Name or Material: 4-Chloro-2-(pentafluoroethyl)pyridine Formula Weight: 231.55

Alfa Aesar™ 7-Methylindole-3-carboxaldehyde, 98%

Chemical Name or Material: 7-Methylindole-3-carboxaldehyde CAS: 4771-50-0 Molecular Formula: C10H9NO Formula Weight: 159.19 MDL Number: MFCD00047170 Beilstein: 122340 Synonym: 3-Formyl-7-methylindole

Alfa Aesar™ Methyl 3-bromoimidazo[1,2-a]pyridine-7-carboxylate, 95%

Chemical Name or Material: Methyl 3-bromoimidazo[1,2-a]pyridine-7-carboxylate CAS: 342613-63-2 Molecular Formula: C9H7BrN2O2 Formula Weight: 255.07 MDL Number: MFCD10566741 Synonym: 3-Bromoimidazo[1,2-a]pyridine-7-carboxylic acid methyl ester

Alfa Aesar™ 3-Hydroxy-5-methylpyridine, 97%

Chemical Name or Material: 3-Hydroxy-5-methylpyridine CAS: 42732-49-0 Molecular Formula: C6H7NO Formula Weight: 109.13 MDL Number: MFCD00661297 Synonym: 5-Hydroxy-3-picoline; 5-Methyl-3-pyridinol

Alfa Aesar™ 2,3,5-Trifluoropyridine-4-carboxylic acid, 97%

Chemical Name or Material: 2,3,5-Trifluoropyridine-4-carboxylic acid CAS: 675602-91-2 Molecular Formula: C6H2F3NO2 Formula Weight: 177.08 MDL Number: MFCD03840205 Synonym: 2,3,5-Trifluoroisonicotinic acid

Alfa Aesar™ Ethyl 5-fluoroindole-2-carboxylate, 98%

Chemical Name or Material: Ethyl 5-fluoroindole-2-carboxylate CAS: 348-36-7 Molecular Formula: C11H10FNO2 Formula Weight: 207.21 MDL Number: MFCD00152076 Beilstein: 170254 Synonym: 5-Fluoroindole-2-carboxylic acid ethyl ester

Alfa Aesar™ 2-(n-Propylthio)nicotinamide, 97%

Chemical Name or Material: 2-(n-Propylthio)nicotinamide CAS: 175135-26-9 Molecular Formula: C9H12N2OS Formula Weight: 196.27 MDL Number: MFCD00052904 Synonym: 2-(n-Propylthio)pyridine-3-carboxamide; 2-(n-Propylmercapto)nicotinamide

Alfa Aesar™ 2-(1-Piperazinyl)benzamidoxime, 97%

Chemical Name or Material: 2-(1-Piperazinyl)benzamidoxime Molecular Formula: C11H16N4O Formula Weight: 220.27 MDL Number: MFCD22989356

Alfa Aesar™ 2-Chloro-4-iodo-3-pyridinemethanol, 97%

Chemical Name or Material: 2-Chloro-4-iodo-3-pyridinemethanol CAS: 884494-44-4 Molecular Formula: C6H5ClINO Formula Weight: 269.47 MDL Number: MFCD03095296

Alfa Aesar™ 4-Bromo-7-azaindole, 95%

Chemical Name or Material: 4-Bromo-7-azaindole CAS: 348640-06-2 Formula Weight: 197.04 MDL Number: MFCD08272233 UN Number: UN2811 Beilstein: 9695211 Synonym: 4-Bromo-1H-pyrrolo[2,3-b]pyridine

2-Benzyl-1,3-dioxolane 98%, ACROS Organics™

Chemical Name or Material: 2-Benzyl-1, 3-dioxolane CAS: 101-49-5 CAS Min %: 92.0 CAS Max %: 100.0 Assay: ≥92% Assay Percent Range: 94% Molecular Formula: C10H12O2 Formula Weight: 164.2 MDL Number: MFCD00003215

Alfa Aesar™ 3-Iodochromone, 97%

Chemical Name or Material: 3-Iodochromone CAS: 122775-34-2 Molecular Formula: C9H5O2I Formula Weight: 272.04 MDL Number: MFCD09475514 Synonym: 3-Iodo-4H-chromen-4-one

Alfa Aesar™ N,N,N',N'-Tetramethyl-O-(4-oxo-3,4-dihydro-1,2,3-benzotriazin-3-yl)uronium tetrafluoroborate, 98+%

Chemical Name or Material: N,N,N',N'-Tetramethyl-O-(4-oxo-3,4-dihydro-1,2,3-benzotriazin-3-yl)uronium tetrafluoroborate CAS: 125700-69-8 Molecular Formula: C12H16BF4N5O2 Formula Weight: 349.09 MDL Number: MFCD00077730 Synonym: O-(3,4-Dihydro-4-oxo-1,2,3-benzotriazin-3-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; TDBTU

Alfa Aesar™ 3-[2-(4-Morpholinyl)ethylcarbamoyl]benzeneboronic acid hydrochloride, 98%

Chemical Name or Material: 3-[2-(4-Morpholinyl)ethylcarbamoyl]benzeneboronic acid hydrochloride CAS: 957060-89-8 Molecular Formula: C13H19BN2O4·HCl Formula Weight: 314.58 MDL Number: MFCD09027255

Alfa Aesar™ 6-Chloropyridine-3-boronic acid, 96%

Chemical Name or Material: 6-Chloropyridine-3-boronic acid CAS: 444120-91-6 Molecular Formula: C5H5BClNO2 Formula Weight: 157.37 MDL Number: MFCD03094998 Beilstein: 9119810 Synonym: 6-Chloro-3-pyridylboronic acid

Alfa Aesar™ 3-Cyano-2-fluoropyridine, 98%

Chemical Name or Material: 3-Cyano-2-fluoropyridine CAS: 3939-13-7 Molecular Formula: C6H3FN2 Formula Weight: 122.1 MDL Number: MFCD03095082 Beilstein: 386567 Synonym: 2-Fluoronicotinonitrile; 2-Fluoropyridine-3-carbonitrile

Alfa Aesar™ 3-Bromo-2-methoxypyridine, 95%

Chemical Name or Material: 3-Bromo-2-methoxypyridine CAS: 13472-59-8 Molecular Formula: C6H6BrNO Formula Weight: 188.02 MDL Number: MFCD03095349

Alfa Aesar™ Ethyl 2-amino-4-(5-methyl-2-thienyl)thiophene-3-carboxylate, 97%

Chemical Name or Material: Ethyl 2-amino-4-(5-methyl-2-thienyl)thiophene-3-carboxylate Molecular Formula: C12H13NO2S2 Formula Weight: 267.36 MDL Number: MFCD03028437 Synonym: 2-Amino-4-(5-methyl-2-thienyl)thiophene-3-carboxylic acid ethyl ester

Alfa Aesar™ 4-Bromo-2-chloro-3-iodopyridine, 98%

Chemical Name or Material: 4-Bromo-2-chloro-3-iodopyridine CAS: 916203-52-6 Molecular Formula: C5H2BrClIN Formula Weight: 318.34 MDL Number: MFCD08060939

Alfa Aesar™ 7-Methylindole, 98%

Chemical Name or Material: 7-Methylindole CAS: 933-67-5 Molecular Formula: C9H9N Formula Weight: 131.18 MDL Number: MFCD00005684 Beilstein: 111088

Alfa Aesar™ 6-Cyano-2-(2-pyridyl)benzimidazole, 97%

Chemical Name or Material: 6-Cyano-2-(2-pyridyl)benzimidazole Formula Weight: 220.23 MDL Number: MFCD22581244 UN Number: UN3439

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