Heterocyclic Building Blocks

Alfa Aesar™ N-(4-Bromobutyl)phthalimide, 98%

Chemical Name or Material: N-(4-Bromobutyl)phthalimide CAS: 5394-18-3 Molecular Formula: C12H12BrNO2 Formula Weight: 282.14 MDL Number: MFCD00005905 Beilstein: 164119 N-(4-BROMOBUTYL)PHTHALIMIDE, 98+%,100G

N-Methylpiperidine 99%, ACROS Organics™

Chemical Name or Material: N-Methylpiperidine Name Note: 99% CAS: 626-67-5 CAS Min %: 98.5 CAS Max %: 100.0 Assay: 99% Assay Percent Range: 99% Molecular Formula: C6H13N Formula Weight: 99.18 MDL Number: MFCD00006491 Synonym: 1-Methylpiperidine 1LT N-Methylpiperidine, 99%

Alfa Aesar™ 3-(2-Isopropylphenoxy)piperidine hydrochloride, 97+%

Chemical Name or Material: 3-(2-Isopropylphenoxy)piperidine hydrochloride CAS: 1220033-52-2 Molecular Formula: C14H21NO·HCl Formula Weight: 255.79 MDL Number: MFCD13561070 250MG 3-(2-Isopropylphenoxy)piperidine hydrochloride, 97+% 250mg

Alfa Aesar™ 2-n-Pentylpyrazine, 97%

Chemical Name or Material: 2-n-Pentylpyrazine CAS: 6303-75-9 Molecular Formula: C9H14N2 Formula Weight: 150.23 MDL Number: MFCD00014614 Beilstein: 508952 Synonym: n-Amylpyrazine; 1-Pyrazinylpentane N-PENTYLPYRAZINE, 97% 5G

Alfa Aesar™ 2-Amino-3-bromo-5-chloropyridine, 95%

Chemical Name or Material: 2-Amino-3-bromo-5-chloropyridine CAS: 26163-03-1 Molecular Formula: C5H4BrClN2 Formula Weight: 207.46 MDL Number: MFCD00955627 Synonym: 3-Bromo-5-chloro-2-pyridinamine 2-AMINO-3-BROMO-5-CHLOROP YRIDINE, 95% 1G

(S)-2-Diphenylmethylpyrrolidine, 97+%, ACROS Organics™

Chemical Name or Material: (S)-2-Diphenylmethylpyrrolidine CAS: 119237-64-8 CAS Min %: 97.0 CAS Max %: 100.0 Assay: ≥97% Assay Percent Range: 97+% Molecular Formula: C17H19N Formula Weight: 237.34 MDL Number: MFCD00799525 1GR (S)-2-Diphenylmethylpyrrolidine, 97+%

Alfa Aesar™ 5-Fluoroorotic acid monohydrate, 98%

Chemical Name or Material: 5-Fluoroorotic acid monohydrate CAS: 220141-70-8 Molecular Formula: C5H3FN2O4·H2O Formula Weight: 192.11 (174.09 Anhydrous) MDL Number: MFCD00150658 Beilstein: 181933 Merck Index: 14,4176 Synonym: 5-Fluorouracil-6-carboxylic acid monohydrate 5-FLUOROOROTIC ACID MONOHYDRATE, 98%250MG

1H-1,2,4-Triazole-3-carboxylic acid, 97%, ACROS Organics™

Chemical Name or Material: 1H-1, 2, 4-Triazole-3-carboxylic acid CAS: 4928-87-4 CAS Min %: 96.0 CAS Max %: 100.0 Assay: 97% Assay Percent Range: 97% Molecular Formula: C3H3N3O2 Formula Weight: 113.08 1GR 1H-1,2,4-Triazole-3-carboxylic acid, 97%

2,4-Dimethylthiazole 98%, ACROS Organics™

Chemical Name or Material: 2, 4-Dimethylthiazole Name Note: 98% CAS: 541-58-2 CAS Min %: 97.5 CAS Max %: 100.0 Assay: 97.5 to 102.5% Total Base, ≥97.5% (GC) Assay Percent Range: 98% Molecular Formula: C5H7NS Formula Weight: 113.18 MDL Number: MFCD00014509 5GR 2,4-Dimethylthiazole, 98%

Alfa Aesar™ 4-n-Propylpiperidine, 95%

Chemical Name or Material: 4-n-Propylpiperidine CAS: 22398-09-0 Molecular Formula: C8H17N Formula Weight: 127.23 MDL Number: MFCD00023151 UN Number: UN2733 4-N-PROPYLPIPERIDINE, 95% 1G

Alfa Aesar™ 5-Chloro-3-methyl-1-(4-methylphenyl)-1H-pyrazole-4-carboxaldehyde, 96%

Chemical Name or Material: 5-Chloro-3-methyl-1-(4-methylphenyl)-1H-pyrazole-4-carboxaldehyde CAS: 350997-70-5 Molecular Formula: C12H11ClN2O Formula Weight: 234.69 MDL Number: MFCD01993680 Synonym: 5-Chloro-3-methyl-1-(p-tolyl)-1H-pyrazole-4-carboxaldehyde 5-CHLORO-3-METHYL-1-P-TOLYL-1H-PYRAZOLE-4-CARBOX-1

Alfa Aesar™ 3-(2-Benzothiazolyl)aniline, 96%

Chemical Name or Material: 3-(2-Benzothiazolyl)aniline CAS: 41230-21-1 Molecular Formula: C13H10N2S Formula Weight: 226.3 MDL Number: MFCD00579111 1GR 3-(2-Benzothiazolyl)aniline, 96% 1g

Alfa Aesar™ 2-Chloro-3-(trifluoromethyl)pyridine, 98%

Chemical Name or Material: 2-Chloro-3-(trifluoromethyl)pyridine CAS: 65753-47-1 Molecular Formula: C6H3ClF3N Formula Weight: 181.55 MDL Number: MFCD00042223 UN Number: UN2923 Beilstein: 4179716 2-CHLORO-3-(TRIFLUOROMETHYL)PYRIDINE, 98%,1G

Alfa Aesar™ 1H-Indazole-7-carboxylic acid, 95%

Chemical Name or Material: 1H-Indazole-7-carboxylic acid CAS: 677304-69-7 Molecular Formula: C8H6N2O2 Formula Weight: 162.15 MDL Number: MFCD06804572 1GR 1H-Indazole-7-carboxylic acid, 95% 1g

2-(Aminomethyl)pyridine, 99%, ACROS Organics™

Chemical Name or Material: 2-(Aminomethyl)pyridine CAS: 3731-51-9 CAS Min %: 98.5 CAS Max %: 100.0 Assay: 99% Assay Percent Range: 99% Molecular Formula: C6H8N2 Formula Weight: 108.14 Synonym: 2-Picolylamine 500ML 2-(Aminomethyl)pyridine, 99%

Alfa Aesar™ Pyrazine-2-carboxylic acid, 99%

Chemical Name or Material: Pyrazine-2-carboxylic acid CAS: 98-97-5 Molecular Formula: C5H4N2O2 Formula Weight: 124.1 MDL Number: MFCD00006130 Beilstein: 112305 Merck Index: 14,7959 Synonym: Pyrazinoic acid PYRAZINE-2-CARBOXYLIC ACID99%,100G

Alfa Aesar™ 4-Chloropyridine hydrochloride, 98+%

Chemical Name or Material: 4-Chloropyridine hydrochloride CAS: 7379-35-3 Molecular Formula: C5H4ClN·HCl Formula Weight: 150.01 MDL Number: MFCD00012829 Beilstein: 3684904 4-CHLOROPYRIDINE HYDROCHLORIDE, 98%100G

Alfa Aesar™ Potassium pyrazole-5-trifluoroborate, 95%

Chemical Name or Material: Potassium pyrazole-5-trifluoroborate CAS: 1013640-87-3 Molecular Formula: C3H3BF3KN2 Formula Weight: 173.98 MDL Number: MFCD09992890 1GR Potassium pyrazole-5-trifluoroborate, 95% 1g

BOC-trans-4-hydroxy-L-proline, 98%, ACROS Organics™

Chemical Name or Material: BOC-trans-4-Hydroxy-L-proline Assay: ≥97.5% Assay Percent Range: 98% Molecular Formula: C10H17NO5 Formula Weight: 231.25 Synonym: trans-N-(tert-Butoxycarbonyl)-4-hydroxy-L-proline 5GR BOC-trans-4-hydroxy-L-proline, 98%

Alfa Aesar™ 2-(2-Cyanophenyl)benzimidazole, 97%

Chemical Name or Material: 2-(2-Cyanophenyl)benzimidazole CAS: 76889-76-4 Molecular Formula: C14H9N3 Formula Weight: 219.25 MDL Number: MFCD11218394 UN Number: UN3439 Beilstein: 5947339 5GR 2-(2-Cyanophenyl)benzimidazole, 97% 5g

(1S,2R,6S,7R)-4,4-Dimethyl-3,5-dioxa-8-azatricyclo[5.2.1.0(2,6)]decan-9-one, 95%, 98% e.e., ACROS Organics™

1GR (1S,2R,6S,7R)-4,4-Dimethyl-3,5-dioxa-8-azatricyclo¬Ę5.2.1.0(2,6)!decan-9-one, 95%, 98% ee

2,4-Dichloro-5-methylpyrimidine, 98%, ACROS Organics™

Chemical Name or Material: 2, 4-Dichloro-5-methylpyrimidine Assay Percent Range: 98% Molecular Formula: C5H4Cl2N2 Formula Weight: 163.01 1GR 2,4-Dichloro-5-methylpyrimidine, 98%

4-Acetyl-4-phenylpiperidine Hydrochloride 99%, ACROS Organics™

Chemical Name or Material: 4-Acetyl-4-phenylpiperidine hydrochloride Name Note: 99% CAS: 10315-03-4 CAS Min %: 98.5 CAS Max %: 100.0 Assay: ≥98.5% Assay Percent Range: 99% Molecular Formula: C13H17NO·ClH Formula Weight: 239.74 MDL Number: MFCD00039037 25GR 4-Acetyl-4-phenylpiperidine hydrochloride, 99

Alfa Aesar™ 3,3-Difluoroazetidine hydrochloride, 95%

Chemical Name or Material: 3,3-Difluoroazetidine hydrochloride CAS: 288315-03-7 Molecular Formula: C3H5F2N·HCl Formula Weight: 129.54 MDL Number: MFCD05663714 3,3-DIFLUOROAZETIDINE HYDROCHLORIDE, 95%250MG

Alfa Aesar™ 6,8-Dibromoimidazo[1,2-a]pyrazine, 95%

Chemical Name or Material: 6,8-Dibromoimidazo[1,2-a]pyrazine CAS: 63744-22-9 Molecular Formula: C6H3Br2N3 Formula Weight: 276.92 MDL Number: MFCD08460056 5GR 6,8-Dibromoimidazo¬Ę1,2-a!pyrazine, 95% 5g

Alfa Aesar™ 4-Piperidone ethylene ketal, 98+%

Chemical Name or Material: 4-Piperidone ethylene ketal CAS: 177-11-7 Molecular Formula: C7H13NO2 Formula Weight: 143.19 MDL Number: MFCD00005976 Beilstein: 506799 Synonym: 1,4-Dioxa-8-azaspiro[4.5]decane 4-PIPERIDONE ETHYLENE KETAL, 98+%,10G

1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole, 97+%, Acros Organics™

Chemical Name or Material: 1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole CAS: 761446-44-0 CAS Min %: 97.0 CAS Max %: 100.0 Assay: ≥97% Assay Percent Range: 97+% Molecular Formula: C10H17BN2O2 Formula Weight: 208.07 Synonym: 1-Methylpyrazole-4-boronic acid pinacol ester 5GR 1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole, 97+%

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 1KG Melamine, 99%

Alfa Aesar™ 1-Chloroacetyl-3-pyrazolidinone, 97%

Chemical Name or Material: 1-Chloroacetyl-3-pyrazolidinone Molecular Formula: C5H7ClN2O2 Formula Weight: 162.57 MDL Number: MFCD00127084 1-CHLOROACETYL-3-PYRAZOLI DINONE, 97% 1G

Alfa Aesar™ 3-Methoxythiophene-2-carboxaldehyde, 97%

Chemical Name or Material: 3-Methoxythiophene-2-carboxaldehyde CAS: 35134-07-7 Molecular Formula: C6H6O2S Formula Weight: 142.18 MDL Number: MFCD01571098 1GR 3-Methoxythiophene-2-carboxaldehyde, 97% 1g

  spinner