Heterocyclic Building Blocks

Alfa Aesar™ (1S)-(-)-beta-Pinene, 99%

Chemical Name or Material: (1S)-(-)-beta-Pinene CAS: 18172-67-3 Molecular Formula: C10H16 Formula Weight: 136.24 MDL Number: MFCD00001345 UN Number: UN2319 Beilstein: 2038282 Merck Index: 14,7446 1-(S)-(-)-PINENE, 99%100 ML

Alfa Aesar™ 5-Bromonicotinamide, 98%

Chemical Name or Material: 5-Bromonicotinamide CAS: 28733-43-9 Molecular Formula: C6H5BrN2O Formula Weight: 201.03 MDL Number: MFCD00173919 Synonym: 5-Bromopyridine-3-carboxamide 5-BROMONICOTINAMIDE, 98% 25G

Alfa Aesar™ 1-(2-Hydroxyethyl)piperidine, 99%

Chemical Name or Material: 1-(2-Hydroxyethyl)piperidine CAS: 3040-44-6 Molecular Formula: C7H15NO Formula Weight: 129.2 MDL Number: MFCD00006512 UN Number: UN2735 Beilstein: 103390 Synonym: 1-Piperidineethanol; 2-(1-Piperidinyl)ethanol N-(2-HYDROXYETHYL)PIPERIDINE, 99%,500G

5-Fluoroindole-3-acetic acid, 98%, ACROS Organics™

1GR 5-Fluoroindole-3-acetic acid, 98%

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 100GR 2,6-Pyridinedimethanol, 98%

Alfa Aesar™ 1-(2-Nitrophenyl)piperazine, 95%

Chemical Name or Material: 1-(2-Nitrophenyl)piperazine CAS: 59084-06-9 Molecular Formula: C10H13N3O2 Formula Weight: 207.23 MDL Number: MFCD00040728 250MG 1-(2-Nitrophenyl)piperazine, 95% 250mg

7-Bromoindole, 98%, ACROS Organics™

Chemical Name or Material: 7-Bromoindole CAS: 51417-51-7 CAS Min %: 97.5 CAS Max %: 100.0 Assay: ≥97.5% Assay Percent Range: 98% Molecular Formula: C8H6BrN Formula Weight: 196.05 MDL Number: MFCD00799492 250MG 7-Bromoindole, 98%

Alfa Aesar™ 5-Bromopyrimidin-4(1H)-one, 97%

Chemical Name or Material: 5-Bromopyrimidin-4(1H)-one CAS: 19808-30-1 Molecular Formula: C4H3BrN2O Formula Weight: 174.98 MDL Number: MFCD09701451 1GR 5-Bromopyrimidin-4(1H)-one, 97%

Alfa Aesar™ 4-Chloro-6-fluoro-2-methylquinoline, 96%

Chemical Name or Material: 4-Chloro-6-fluoro-2-methylquinoline CAS: 18529-01-6 Molecular Formula: C10H7ClFN Formula Weight: 195.63 MDL Number: MFCD00272332 4-CHLORO-6-FLUORO-2-METHYLQUINOLINE250MG

Alfa Aesar™ 2,8-Dimethylimidazo[1,2-a]pyridine-3-carboxylic acid, 95%

Chemical Name or Material: 2,8-Dimethylimidazo[1,2-a]pyridine-3-carboxylic acid CAS: 874605-59-1 Molecular Formula: C10H10N2O2 Formula Weight: 190.2 MDL Number: MFCD00269632 2,8-DIMETHYLIMIDAZO(1,2-A)PYRIDINE-3-CARBOXY- 250M

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

Chemical Name or Material: 1-(2-Pyrazinyl)piperazine Name Note: 98% CAS: 34803-68-4 CAS Min %: 97.5 CAS Max %: 100.0 Assay: ≥97.5% Assay Percent Range: 98% Molecular Formula: C8H12N4 Formula Weight: 164.21 MDL Number: MFCD00040766 1GR 1-(2-Pyrazinyl)piperazine, 98%

Alfa Aesar™ Pyridoxal hydrochloride, 99%

Chemical Name or Material: Pyridoxal hydrochloride CAS: 65-22-5 Molecular Formula: C8H9NO3·HCl Formula Weight: 203.63 MDL Number: MFCD00012809 Beilstein: 3656994 Merck Index: 14,7978 PYRIDOXAL HYDROCHLORIDE, 99%,25G

Alfa Aesar™ 2-Mercapto-1,3,4-thiadiazole, 98%

Chemical Name or Material: 2-Mercapto-1,3,4-thiadiazole CAS: 18686-82-3 Molecular Formula: C2H2N2S2 Formula Weight: 118.17 MDL Number: MFCD00040404 Synonym: 1,3,4-Thiadiazole-2-thiol 2-MERCAPTO-1,3,4-THIADIAZOLE, 98%,250G

1-Benzyl-4-piperidinecarboxaldehyde, 97%, ACROS Organics™

Chemical Name or Material: 1-Benzyl-4-piperidinecarboxaldehyde CAS: 22065-85-6 CAS Min %: 96.0 CAS Max %: 100.0 Assay: ≥96.0% Assay Percent Range: 97% Molecular Formula: C13H17NO Formula Weight: 203.28 1GR 1-Benzyl-4-piperidinecarboxaldehyde, 97%

Alfa Aesar™ 2,2-Dimethyl-2H-1,4-benzoxazin-3(4H)-one, 97%

Chemical Name or Material: 2,2-Dimethyl-2H-1,4-benzoxazin-3(4H)-one CAS: 10514-70-2 Molecular Formula: C10H11NO2 Formula Weight: 177.2 MDL Number: MFCD11868710 1GR 2,2-Dimethyl-2H-1,4-benzoxazin-3(4H)-one, 97% 1g

Alfa Aesar™ Hydrogen fluoride pyridine complex, ca 70% HF

Chemical Name or Material: Hydrogen fluoride pyridine complex CAS: 62778-11-4 MDL Number: MFCD00012436 UN Number: UN1790 Beilstein: 4750151 Merck Index: 14,6821 Synonym: Olah's Reagent; Pyridinium poly(hydrogen fluoride) HYDROGEN FLUORIDE PYRIDINECOMPLEX, CA 70% HF,100G

Alfa Aesar™ 3-Pyrroline, 96%

Chemical Name or Material: 3-Pyrroline CAS: 109-96-6 Molecular Formula: C4H7N Formula Weight: 69.11 MDL Number: MFCD00005213 UN Number: UN2733 Beilstein: 103173 Merck Index: 14,8017 Synonym: 2,5-Dihydropyrrole 3-PYRROLINE, 97% 1G

Alfa Aesar™ Di(2-pyridyl) ketone, 99%

Chemical Name or Material: Di(2-pyridyl) ketone CAS: 19437-26-4 Molecular Formula: C11H8N2O Formula Weight: 184.2 MDL Number: MFCD00006288 Beilstein: 126598 Synonym: 2,2'-Carbonyldipyridine 25GR Di(2-pyridyl) ketone, 99% 25g

Alfa Aesar™ 4-Hydroxypiperidine, 97%

Chemical Name or Material: 4-Hydroxypiperidine CAS: 5382-16-1 Molecular Formula: C5H11NO Formula Weight: 101.15 MDL Number: MFCD00005999 UN Number: UN3263 Beilstein: 102738 Synonym: 4-Piperidinol 4-HYDROXYPIPERIDINE, 98% 100G

Alfa Aesar™ 4-(1-Pyrrolidinylsulfonyl)benzeneboronic acid, 97%

Chemical Name or Material: 4-(1-Pyrrolidinylsulfonyl)benzeneboronic acid CAS: 486422-57-5 Molecular Formula: C10H14BNO4S Formula Weight: 255.1 MDL Number: MFCD06659847 Synonym: 4-(1-Pyrrolidinylsulfonyl)phenylboronic acid 1GR 4-(1-Pyrrolidinylsulfonyl)benzeneboronic acid, 97% 1g

Alfa Aesar™ 2,4-Dichloro-3-cyanopyridine, 95%

Chemical Name or Material: 2,4-Dichloro-3-cyanopyridine CAS: 180995-12-4 Molecular Formula: C6H2Cl2N2 Formula Weight: 173 MDL Number: MFCD09750302 UN Number: UN3439 250MG 2,4-Dichloro-3-cyanopyridine, 95% 250mg

Alfa Aesar™ alpha-Bromo-gamma-butyrolactone, 97%

Chemical Name or Material: alpha-Bromo-gamma-butyrolactone CAS: 5061-21-2 Molecular Formula: C4H5BrO2 Formula Weight: 164.99 MDL Number: MFCD00005387 Beilstein: 107800 Synonym: 3-Bromo-4,5-dihydro-2(3H)-furanone ALPHA-BROMO-GAMMA-BUTYROLACTONE, 98%,100G

Alfa Aesar™ Ethyl (R)-nipecotate L-tartrate, 98%

Chemical Name or Material: Ethyl (R)-nipecotate L-tartrate CAS: 167392-57-6 Molecular Formula: C12H21NO8 Formula Weight: 307.3 MDL Number: MFCD00799538 5GR Ethyl (R)-nipecotate L-tartrate, 98% 5g

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 1,1'-THIOCARBONYLDIIMIDAZOLE, 97%,250G

Alfa Aesar™ 5-Chloro-2-(2-thienyl)benzimidazole, 95%

Chemical Name or Material: 5-Chloro-2-(2-thienyl)benzimidazole CAS: 27503-77-1 Formula Weight: 234.7 MDL Number: MFCD01004488 1GR 5-Chloro-2-(2-thienyl)benzimidazole, 95% 1g

2,6-Dichloropyrazine, 99+%, ACROS Organics™

Chemical Name or Material: 2, 6-Dichloropyrazine CAS: 4774-14-5 CAS Min %: 99.0 CAS Max %: 100.0 Assay: ≥99.0% Assay Percent Range: 99+% Molecular Formula: C4H2Cl2N2 Formula Weight: 148.98 1GR 2,6-Dichloropyrazine, 99+%

Alfa Aesar™ (+/-)-beta-Hydroxy-gamma-butyrolactone, 96%

Chemical Name or Material: (+/-)-beta-Hydroxy-gamma-butyrolactone CAS: 5469-16-9 Molecular Formula: C4H6O3 Formula Weight: 102.09 MDL Number: MFCD00090014 Beilstein: 107670 (+/-)-BETA-HYDROXY-GAMMA-BUTYROLACTONE,5G

Alfa Aesar™ 1-tert-Butylpiperazine, 97%

Chemical Name or Material: 1-tert-Butylpiperazine CAS: 38216-72-7 Formula Weight: 142.24 MDL Number: MFCD00049359 UN Number: UN3259 1GR 1-tert-Butylpiperazine, 97% 1g

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

Chemical Name or Material: 3-Chlorobenzo[b]thiophene-2-carbonyl chloride CAS: 21815-91-8 Molecular Formula: C9H4Cl2OS Formula Weight: 231.1 MDL Number: MFCD00053069 UN Number: UN3261 Beilstein: 1309703 3-CHLOROBENZO(B)THIOPHENE-2-CARBONYL CHLORIDE, 95,

Alfa Aesar™ 5-Methyl-1,10-phenanthroline, 99%

Chemical Name or Material: 5-Methyl-1,10-phenanthroline CAS: 3002-78-6 Molecular Formula: C13H10N2 Formula Weight: 194.24 MDL Number: MFCD00004982 Beilstein: 143849 5-METHYL-1,10-PHENANTHROLINE, 99%,0,25G

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