Heterocyclic Building Blocks

Alfa Aesar™ 1-Boc-N-Fmoc-L-tryptophan, 97%

Chemical Name or Material: 1-Boc-N-Fmoc-L-tryptophan CAS: 143824-78-6 Molecular Formula: C31H30N2O6 Formula Weight: 526.58 MDL Number: MFCD00153366 UN Number: UN3077 Beilstein: 7698009 Synonym: Fmoc-Trp(Boc)-OH

Alfa Aesar™ Tetrahydrofurfuryl acrylate, tech. 90%, stab. with 500ppm hydroquinone

Chemical Name or Material: Tetrahydrofurfuryl acrylate CAS: 2399-48-6 Name Note: stabilized with 500ppm hydroquinone Purity Grade: Technical Grade Molecular Formula: C8H12O3 Formula Weight: 156.18 MDL Number: MFCD00014516 UN Number: UN3334 Beilstein: 113115 Synonym: Acrylic acid tetrahydrofurfuryl ester

Alfa Aesar™ 4-(1H-Tetrazol-5-yl)aniline, 97%

Chemical Name or Material: 4-(1H-Tetrazol-5-yl)aniline CAS: 46047-18-1 Molecular Formula: C7H7N5 Formula Weight: 161.17 MDL Number: MFCD01219548 Synonym: 5-(4-Aminophenyl)-1H-tetrazole

Alfa Aesar™ 6-Chloro-7-deazapurine, 98%

Chemical Name or Material: 6-Chloro-7-deazapurine CAS: 3680-69-1 Molecular Formula: C6H4ClN3 Formula Weight: 153.52 MDL Number: MFCD01686865 Synonym: 4-Chloro-7H-pyrrolo[2,3-d]pyrimidine

Alfa Aesar™ 4,4'-Bipiperidine dihydrochloride, 99%

Chemical Name or Material: 4,4'-Bipiperidine dihydrochloride CAS: 78619-84-8 Molecular Formula: C10H20N2·2HCl Formula Weight: 241.21 MDL Number: MFCD00005998 Beilstein: 3687878

Alfa Aesar™ 3-(2-Furyl)acrolein, 99%

Chemical Name or Material: 3-(2-Furyl)acrolein CAS: 623-30-3 Molecular Formula: C7H6O2 Formula Weight: 122.12 MDL Number: MFCD00003256 UN Number: UN1759 Beilstein: 107570 Synonym: Furan-2-acrolein

Alfa Aesar™ 2,5-Dibromo-3,4-dinitrothiophene, 95%

Chemical Name or Material: 2,5-Dibromo-3,4-dinitrothiophene CAS: 52431-30-8 Molecular Formula: C4Br2N2O4S Formula Weight: 331.94 MDL Number: MFCD00015537 Beilstein: 218219

6-Bromo[1,3]oxazolo[4,5-b]pyridin-2(3H)-one, 97%, ACROS Organics™

Chemical Name or Material: 6-Bromo[1, 3]oxazolo[4, 5-b]pyridin-2(3H)-one CAS: 21594-52-5 CAS Min %: 96.0 CAS Max %: 100.0 Assay: ≥96.0% (HPLC) Assay Percent Range: 97% Molecular Formula: C6H3BrN2O2 Formula Weight: 215.01 MDL Number: MFCD08689590

Alfa Aesar™ 1H-Indazole-4-boronic acid pinacol ester, 95%

Chemical Name or Material: 1H-Indazole-4-boronic acid pinacol ester CAS: 885618-33-7 Molecular Formula: C13H17BN2O2 Formula Weight: 244.1 MDL Number: MFCD08059267 Synonym: 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indazole

Alfa Aesar™ 3-Amino-1-bromoisoquinoline, 97+%

Chemical Name or Material: 3-Amino-1-bromoisoquinoline CAS: 13130-79-5 Molecular Formula: C9H7BrN2 Formula Weight: 223.07 MDL Number: MFCD00102193 Synonym: 1-Bromo-3-isoquinolinamine

Alfa Aesar™ 1-Chlorophthalazin-4-one, 98%

Chemical Name or Material: 1-Chlorophthalazin-4-one CAS: 2257-69-4 Molecular Formula: C8H5ClN2O Formula Weight: 180.59 MDL Number: MFCD00102192

Alfa Aesar™ 3,3'-Di-n-pentyloxadicarbocyanine iodide, 96%

Chemical Name or Material: 3,3'-Di-n-pentyloxadicarbocyanine iodide CAS: 53213-92-6 Molecular Formula: C29H35IN2O2 Formula Weight: 570.52 MDL Number: MFCD07433847

Alfa Aesar™ 2-Chloro-4-(trifluoromethyl)nicotinic acid, 97%

Chemical Name or Material: 2-Chloro-4-(trifluoromethyl)nicotinic acid CAS: 590371-81-6 Molecular Formula: C7H3ClF3NO2 Formula Weight: 225.56 MDL Number: MFCD08458125 Synonym: 2-Chloro-4-(trifluoromethyl)pyridine-3-carboxylic acid

Alfa Aesar™ Methyl 3-cyanoindole-6-carboxylate, 97%

Chemical Name or Material: Methyl 3-cyanoindole-6-carboxylate CAS: 1000576-51-1 Formula Weight: 200.19 MDL Number: MFCD09878564 Synonym: 3-Cyanoindole-6-carboxylic acid methyl ester

Alfa Aesar™ Thiazolidine, 97%

Chemical Name or Material: Thiazolidine CAS: 504-78-9 Molecular Formula: C3H7NS Formula Weight: 89.16 MDL Number: MFCD00005211 UN Number: UN1993 Synonym: Tetrahydrothiazole

4-(5-Bromopyrimidin-2-yl)morpholine, 97%, ACROS Organics™

Chemical Name or Material: 4-(5-Bromopyrimidin-2-yl)morpholine CAS: 84539-22-0 CAS Min %: 96.0 CAS Max %: 100.0 Assay: ≥96.0% (GC) Assay Percent Range: 97% Molecular Formula: C8H10BrN3O Formula Weight: 244.09 MDL Number: MFCD00483251 Synonym: 5-Bromo-2-(4-morpholino)pyrimidine

Alfa Aesar™ 3-Methyl-2-furoic acid, 98+%

Chemical Name or Material: 3-Methyl-2-furoic acid CAS: 4412-96-8 Molecular Formula: C6H6O3 Formula Weight: 126.11 MDL Number: MFCD00014111 Beilstein: 116183 Synonym: 3-Methylfuran-2-carboxylic acid

Alfa Aesar™ 3-n-Hexylthiophene, 99+%

Chemical Name or Material: 3-n-Hexylthiophene CAS: 1693-86-3 Molecular Formula: C10H18S Formula Weight: 168.3 MDL Number: MFCD00143181 UN Number: UN1993 Beilstein: 1617129

4-Picolyl Chloride Hydrochloride 97%, ACROS Organics™

Chemical Name or Material: 4-Picolyl chloride hydrochloride Name Note: 97% CAS: 1822-51-1 CAS Min %: 96.0 CAS Max %: 100.0 Assay: ≥96.0% Assay Percent Range: 97% Molecular Formula: C6H6ClN·HCl Formula Weight: 164.04 MDL Number: MFCD00012826 Synonym: 4-(Chloromethyl)pyridine hydrochloride

Alfa Aesar™ 8-Hydroxyquinoline, ACS

Chemical Name or Material: 8-Hydroxyquinoline CAS: 148-24-3 Purity Grade: ACS Grade Formula Weight: 145.16 MDL Number: MFCD00006807 Beilstein: 114512 Merck Index: 14,4843 Synonym: 8-Quinolinol; Oxine

Alfa Aesar™ 3-Bromo-2-fluoro-5-nitropyridine, 97%

Chemical Name or Material: 3-Bromo-2-fluoro-5-nitropyridine CAS: 1868-58-2 Molecular Formula: C5H2BrFN2O2 Formula Weight: 220.98 MDL Number: MFCD08703668

Alfa Aesar™ 3-(alpha-Cyanobenzyl)-7-methyl-2(1H)-quinoxalinone, 97%

Chemical Name or Material: 3-(alpha-Cyanobenzyl)-7-methyl-2(1H)-quinoxalinone Molecular Formula: C17H13N3O Formula Weight: 275.31 MDL Number: MFCD22988956 UN Number: UN3439

Alfa Aesar™ 7-Chloroimidazo[1,2-a]pyridine-2-carboxylic acid hydrate, 95%

Chemical Name or Material: 7-Chloroimidazo[1,2-a]pyridine-2-carboxylic acid hydrate CAS: 1020038-42-9 Molecular Formula: C8H5ClN2O2·xH2O Formula Weight: 196.59 (Anhydrous) MDL Number: MFCD22682814

BOC-L-Proline, 99+%, ACROS Organics™

Chemical Name or Material: BOC-L-Proline CAS: 15761-39-4 Assay: ≥99.0% Assay Percent Range: 99+% Molecular Formula: C10H17NO4 Formula Weight: 215.25 MDL Number: MFCD00037324 Synonym: N-(tert-Butoxycarbonyl)-L-proline

Alfa Aesar™ 2-Amino-4-tert-butylthiazole, 98%

Chemical Name or Material: 2-Amino-4-tert-butylthiazole CAS: 74370-93-7 Molecular Formula: C7H12N2S Formula Weight: 156.26 MDL Number: MFCD00051644 Beilstein: 114270 Synonym: 4-tert-Butyl-2-thiazolamine

Alfa Aesar™ 2-Amino-4-chloro-6-(4-morpholinyl)pyrimidine, 99%

Chemical Name or Material: 2-Amino-4-chloro-6-(4-morpholinyl)pyrimidine CAS: 339016-18-1 Molecular Formula: C8H11ClN4O Formula Weight: 214.66 MDL Number: MFCD00664697 Synonym: 4-Chloro-6-(4-morpholinyl)-2-pyrimidinamine

Alfa Aesar™ Oxazole-5-carboxylic acid, 98+%

Chemical Name or Material: Oxazole-5-carboxylic acid CAS: 118994-90-4 Molecular Formula: C4H3NO3 Formula Weight: 113.07 MDL Number: MFCD04114931

Alfa Aesar™ 3-Bromo-2-chloro-5-(trifluoromethyl)pyridine, 97%

Chemical Name or Material: 3-Bromo-2-chloro-5-(trifluoromethyl)pyridine CAS: 71701-92-3 Formula Weight: 260.44 MDL Number: MFCD09878432 UN Number: UN2811

Alfa Aesar™ 4-Chloro-2-(5-isoxazolyl)phenol, 97%

Chemical Name or Material: 4-Chloro-2-(5-isoxazolyl)phenol CAS: 86176-56-9 Molecular Formula: C9H6ClNO2 Formula Weight: 195.61 MDL Number: MFCD00218660 Synonym: 5-(5-Chloro-2-hydroxyphenyl)isoxazole

Alfa Aesar™ 2-(3-Methyl-2-pyridyl)-4-phenylthiazole-5-carboxamidoxime, 97%

Chemical Name or Material: 2-(3-Methyl-2-pyridyl)-4-phenylthiazole-5-carboxamidoxime Molecular Formula: C16H14N4OS Formula Weight: 310.37 MDL Number: MFCD22988951

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