Heterocyclic Building Blocks

Mercurochrome, 24-27% Mercury, ACROS Organics™

Chemical Name or Material: Mercurochrome Assay: 24 to 27% (Hg), 18 to 22.5% (Br2) Molecular Formula: C20H8Br2HgNa2O6 Formula Weight: 750.65 MDL Number: MFCD00013081 Synonym: 2, 7-Dibromo-4-hydroxymercurifluoresceine disodium salt 100GR Mercurochrome, 24-27% Mercury

Alfa Aesar™ (S)-(+)-1-Boc-3-bromopyrrolidine, 95%

Chemical Name or Material: (S)-(+)-1-Boc-3-bromopyrrolidine CAS: 569660-89-5 Molecular Formula: C9H16BrNO2 Formula Weight: 250.14 MDL Number: MFCD17214728 UN Number: UN3077 250MG (S)-(+)-1-Boc-3-bromopyrrolidine, 95% 250mg

Alfa Aesar™ 2,3-Dichloropyridine, 99%

Chemical Name or Material: 2,3-Dichloropyridine CAS: 2402-77-9 Molecular Formula: C5H3Cl2N Formula Weight: 147.99 MDL Number: MFCD00006229 UN Number: UN2811 Beilstein: 109811 2,3-DICHLOROPYRIDINE, 99% 5G

Alfa Aesar™ Ethyl 2-amino-4-methylthiazole-5-carboxylate, 97%

Chemical Name or Material: Ethyl 2-amino-4-methylthiazole-5-carboxylate CAS: 7210-76-6 Molecular Formula: C7H10N2O2S Formula Weight: 186.22 MDL Number: MFCD00123414 Synonym: 2-Amino-4-methylthiazole-5-carboxylic acid ethyl ester ETHYL 2-AMINO-4-METHYLTHIAZOLE-5-CARBOXYLATE,25G

Alfa Aesar™ 3-(Tetrahydrofurfurylaminocarbonyl)benzeneboronic acid pinacol ester, 97%

Chemical Name or Material: 3-(Tetrahydrofurfurylaminocarbonyl)benzeneboronic acid pinacol ester CAS: 1073355-06-2 Molecular Formula: C18H26BNO4 Formula Weight: 331.21 MDL Number: MFCD09266189 Synonym: 3-(Tetrahydrofurfurylaminocarbonyl)phenylboronic acid pinacol ester; N-Tetrahydrofurfuryl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzamide 3-(TETRAHYDROFURFURYLAMIN OCARBONYL)BENZENEBORO-1G

Alfa Aesar™ 4,6-Dichloro-5-methoxypyrimidine, 97%

Chemical Name or Material: 4,6-Dichloro-5-methoxypyrimidine CAS: 5018-38-2 Molecular Formula: C5H4Cl2N2O Formula Weight: 179.01 MDL Number: MFCD00087680 5GR 4,6-Dichloro-5-methoxypyrimidine, 97% 5g

Alfa Aesar™ Pyridine-4-carboxaldehyde, 97%

Chemical Name or Material: Pyridine-4-carboxaldehyde CAS: 872-85-5 Molecular Formula: C6H5NO Formula Weight: 107.11 MDL Number: MFCD00006425 Beilstein: 105342 Synonym: Isonicotinaldehyde PYRIDINE-4-CARBOXALDEHYDE,98%,25G

Alfa Aesar™ 4-Chloro-8-methoxy-2-methylquinoline, 95%

Chemical Name or Material: 4-Chloro-8-methoxy-2-methylquinoline CAS: 64951-58-2 Molecular Formula: C11H10ClNO Formula Weight: 207.66 MDL Number: MFCD00272401 Synonym: 4-Chloro-8-methoxyquinaldine 4-CHLORO-8-METHOXY-2-METHYLQUINOLINE5G

2-Phenylbenzimidazole-5-sulfonic acid, 98%, ACROS Organics™

Chemical Name or Material: 2-Phenylbenzimidazole-5-sulfonic acid CAS: 27503-81-7 CAS Min %: 97.5 CAS Max %: 100.0 Assay: ≥97.5% Assay Percent Range: 98% Molecular Formula: C13H10N2O3S Formula Weight: 274.28 MDL Number: MFCD00053007 25GR 2-Phenylbenzimidazole-5-sulfonic acid, 98%

Alfa Aesar™ 1-Benzyl-3-methylpiperazine hydrochloride, 98+%

Chemical Name or Material: 1-Benzyl-3-methylpiperazine hydrochloride Molecular Formula: C12H18N2·HCl Formula Weight: 226.75 MDL Number: MFCD09842143 25GR 1-Benzyl-3-methylpiperazine hydrochloride, 98+% 25g

Alfa Aesar™ 1,3-Dimethyl-1H-thieno[2,3-c]pyrazole-5-carboxylic acid, 95%

Chemical Name or Material: 1,3-Dimethyl-1H-thieno[2,3-c]pyrazole-5-carboxylic acid CAS: 25252-46-4 Molecular Formula: C8H8N2O2S Formula Weight: 196.23 MDL Number: MFCD00126746 250MG 1,3-Dimethyl-1H-thieno[2,3-c]pyrazole-5-carboxylic acid, 95% 250mg

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

Chemical Name or Material: 2,2,6,6-Tetramethylpiperidine Assay: 98% Assay Percent Range: 98% Molecular Formula: C9H19N Formula Weight: 141.26 Synonym: HTMP 25GR 2,2,6,6-Tetramethylpiperidine, 98%

Alfa Aesar™ 4-Hydroxypyridine, 97%

Chemical Name or Material: 4-Hydroxypyridine CAS: 626-64-2 Molecular Formula: C5H5NO Formula Weight: 95.1 MDL Number: MFCD00040458 Beilstein: 105800 Synonym: 4-Pyridinol; 4(1H)-Pyridone 4-HYDROXYPYRIDINE, TECH. 500G

Alfa Aesar™ 2-Chloro-3-fluoropyridine-4-carboxaldehyde, 98%

Chemical Name or Material: 2-Chloro-3-fluoropyridine-4-carboxaldehyde CAS: 329794-28-7 Molecular Formula: C6H3ClFNO Formula Weight: 159.55 MDL Number: MFCD04972388 Synonym: 2-Chloro-3-fluoro-4-formylpyridine 5GR 2-Chloro-3-fluoropyridine-4-carboxaldehyde, 98% 5g

Alfa Aesar™ 4-(Chloromethyl)pyridine hydrochloride, 98%

Chemical Name or Material: 4-(Chloromethyl)pyridine hydrochloride CAS: 1822-51-1 Molecular Formula: C6H62N·HCl Formula Weight: 164.04 MDL Number: MFCD00012826 UN Number: UN3261 Beilstein: 3689154 Synonym: 4-Picolyl chloride hydrochloride 4-CHLOROMETHYLPYRIDINE HYDROCHLORIDE, 98%,25G

Alfa Aesar™ Thiophene-3-boronic acid, 98%

Chemical Name or Material: Thiophene-3-boronic acid CAS: 6165-69-1 Molecular Formula: C4H5BO2S Formula Weight: 127.96 MDL Number: MFCD00151851 Beilstein: 113573 Synonym: 3-Thienylboronic acid THIOPHENE-3-BORONIC ACID, 98%,1G

Alfa Aesar™ 7-Acetyl-3,4-dihydro-1,5-benzodioxepin, 96%

Chemical Name or Material: 7-Acetyl-3,4-dihydro-1,5-benzodioxepin CAS: 22776-09-6 Molecular Formula: C11H12O3 Formula Weight: 192.21 MDL Number: MFCD00114700 Synonym: 3,4-(Trimethylenedioxy)acetophenone 7-ACETYL-3,4-DIHYDRO-1,5-BENZODIOXEPIN, 98% 1G

Alfa Aesar™ Indole, 99%

Chemical Name or Material: Indole CAS: 120-72-9 Molecular Formula: C8H7N Formula Weight: 117.15 MDL Number: MFCD00005607 UN Number: UN2811 Beilstein: 107693 Merck Index: 14,4963 INDOLE, 99% 250G

Alfa Aesar™ 5-(2-Furyl)isoxazole, 95%

Chemical Name or Material: 5-(2-Furyl)isoxazole CAS: 138716-33-3 Molecular Formula: C7H5NO2 Formula Weight: 135.12 MDL Number: MFCD06409149 5GR 5-(2-Furyl)isoxazole, 95%

Alfa Aesar™ 6-Methoxyquinoline, 98%

Chemical Name or Material: 6-Methoxyquinoline CAS: 5263-87-6 Molecular Formula: C10H9NO Formula Weight: 159.19 MDL Number: MFCD00006800 Beilstein: 115244 6-METHOXYQUINOLINE, 98+% 5G

Alfa Aesar™ 3,6-Dichlorobenzo[b]thiophene-2-carbonyl chloride, 95%

Chemical Name or Material: 3,6-Dichlorobenzo[b]thiophene-2-carbonyl chloride CAS: 34576-85-7 Molecular Formula: C9H3Cl3OS Formula Weight: 265.55 MDL Number: MFCD01108758 UN Number: UN3261 3,6-DICHLOROBENZO(B)THIOPHENE-2-CARBONYL CHLOR-250

Alfa Aesar™ 3-Amino-5-bromo-1-methyl-1H-indazole, 97%

Chemical Name or Material: 3-Amino-5-bromo-1-methyl-1H-indazole CAS: 1000018-06-3 Molecular Formula: C8H8BrN3 Formula Weight: 226.08 MDL Number: MFCD09864804 Synonym: 5-Bromo-1-methyl-1H-indazol-3-amine 250MG 3-Amino-5-bromo-1-methyl-1H-indazole, 97% 250mg

Alfa Aesar™ 3-Aminopyridine-4-carboxylic acid, 95%

Chemical Name or Material: 3-Aminopyridine-4-carboxylic acid CAS: 7579-20-6 Molecular Formula: C6H6N2O2 Formula Weight: 138.13 MDL Number: MFCD00137840 Synonym: 3-Aminoisonicotinic acid 250MG 3-Aminopyridine-4-carboxylic acid, 95% 250m

MOPS sodium salt, 98%, ACROS Organics™

Chemical Name or Material: MOPS sodium salt Name Note: 98% CAS: 71119-22-7 CAS Min %: 97.5 CAS Max %: 100.0 Assay: 98% Assay Percent Range: 98% Molecular Formula: C7H14NNaO4S Formula Weight: 231.25 MDL Number: MFCD00064350 Synonym: 3-(4-Morpholino)propanesulfonic acid sodium salt 100GR MOPS sodium salt, 98%

Alfa Aesar™ 2-Amino-4-imino-2-thiazoline hydrochloride, 99%

Chemical Name or Material: 2-Amino-4-imino-2-thiazoline hydrochloride CAS: 36518-76-0 Molecular Formula: C3H5N3S·HCl Formula Weight: 151.62 MDL Number: MFCD00012721 Beilstein: 5109728 2-AMINO-4-IMINO-2-THIAZOLINE HYDROCHLORIDE, 99%,5G

Alfa Aesar™ 4-(3,5-Dimethyl-4H-1,2,4-triazol-4-yl)piperidine, 95%

Chemical Name or Material: 4-(3,5-Dimethyl-4H-1,2,4-triazol-4-yl)piperidine CAS: 795310-52-0 Molecular Formula: C9H16N4 Formula Weight: 180.25 MDL Number: MFCD08061013 4-(3,5-DIMETHYL-4H-1,2,4-TRIAZOL-4-YL)PIPERIDINE1G

(R)-2-(1-hydroxyethyl)pyridine 98%, ACROS Organics™

Chemical Name or Material: (R)-2-(1-Hydroxyethyl)pyridine CAS: 27911-63-3 CAS Min %: 97.5 CAS Max %: 100.0 Assay: ≥97.5% (GC) Assay Percent Range: 98% Molecular Formula: C7H9NO Formula Weight: 123.15 MDL Number: MFCD04972322 Synonym: (R)-α-Methyl-2-pyridinemethanol 250MG (R)-2-(1-Hydroxyethyl)pyridine, 98%

Alfa Aesar™ 1-n-Butyl-6-chloro-2-((E)-2-[4-(dimethylamino)phenyl]ethenyl)benzo[cd]indolium tetrafluoroborate, 96%

500MG 1-n-Butyl-6-chloro-2-((E)-2-[4-(dimethylamino)phenyl]ethenyl)benzo[cd]indolium tetrafluorobora

4-Bromo-2-chloropyridine, 97%, ACROS Organics™

Chemical Name or Material: 4-Bromo-2-chloropyridine CAS: 73583-37-6 CAS Min %: 96.0 CAS Max %: 100.0 Assay: ≥96.0% (GC) Assay Percent Range: 97% Molecular Formula: C5H3BrClN Formula Weight: 192.44 MDL Number: MFCD03840756 5GR 4-Bromo-2-chloropyridine, 97%

Alfa Aesar™ Methyl 3-chloroimidazo[1,2-a]pyridine-6-carboxylate, 95%

Chemical Name or Material: Methyl 3-chloroimidazo[1,2-a]pyridine-6-carboxylate Molecular Formula: C9H7ClN2O2 Formula Weight: 210.62 MDL Number: MFCD07021500 Synonym: 3-Chloroimidazo[1,2-a]pyridine-6-carboxylic acid methyl ester 250MG Methyl 3-chloroimidazo[1,2-a]pyridine-6-carboxylate, 95% 250mg

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