Heterocyclic Building Blocks

Pyridine, 99+%, ACS reagent, ACROS Organics™

Chemical Name or Material: Pyridine CAS: 110-86-1 Purity Grade: ACS Reagent Grade Assay: ≥99% Assay Percent Range: 99+% Molecular Formula: C5H5N Formula Weight: 79.1 MDL Number: MFCD00011732 1LT Pyridine, 99+%, ACS reagent

Bacitracin, potency min. 60 Units/mg, ACROS Organics™

Chemical Name or Material: Bacitracin Assay: 60 I.U./mg min. (potency, on dried subst.) Molecular Formula: C66H103N17O16S Formula Weight: 1422.71 MDL Number: MFCD00062640 25GR Bacitracin, potency min. 60 Units/mg

Alfa Aesar™ 2,3-Dimethylmaleic anhydride, 97%

Chemical Name or Material: 2,3-Dimethylmaleic anhydride CAS: 766-39-2 Molecular Formula: C6H6O3 Formula Weight: 126.11 MDL Number: MFCD00005523 Beilstein: 112044 Synonym: 3,4-Dimethyl-2,5-furandione 2,3-DIMETHYLMALEIC ANHYDRIDE, 97%,5G

Azur eosin methylene-blue, pure, solution according to Giemsa, ACROS Organics™

Chemical Name or Material: Azur eosin methylene-blue CAS: 51811-82-6 CAS: 67-56-1 Purity Grade: Pure MDL Number: MFCD00081642 100ML Azur eosin methylene-blue, pure, solution according to Giemsa

4-Methylumbelliferyl-β-D-glucopyranoside, 99%, ACROS Organics™

Chemical Name or Material: 4-Methylumbelliferyl-β-D-glucopyranoside Name Note: 99% CAS: 18997-57-4 CAS Min %: 98.5 CAS Max %: 100.0 Assay: 99% Assay Percent Range: 99% Molecular Formula: C16H18O8 Formula Weight: 338.31 MDL Number: MFCD00063694 2.5GR 4-Methylumbelliferyl-beta-D-glucopyranoside, 99%

IR-125, Laser Grade, ACROS Organics™

Chemical Name or Material: IR-125 CAS: 3599-32-4 Purity Grade: Pure Molecular Formula: C43H47N2NaO6S2 Formula Weight: 774.97 MDL Number: MFCD00013078 Synonym: Indocyanine Green 2GR IR-125, pure, laser grade

Bilirubin, 99%, ACROS Organics™

Chemical Name or Material: Bilirubin CAS: 635-65-4 CAS Min %: 98.5 CAS Max %: 100.0 Assay Percent Range: 99% Molecular Formula: C33H36N4O6 Formula Weight: 584.67 MDL Number: MFCD00005499 5GR Bilirubin, 99%

1,4-Dioxane, 99.8%, Extra Dry, stabilized, AcroSeal™, ACROS Organics™

Chemical Name or Material: 1,4-Dioxane Name Note: Water <50ppm CAS: 123-91-1 CAS Min %: 99.75 CAS Max %: 100.0 Purity Grade: Extra Dry Assay: 99.8% Assay Percent Range: 99.8% Molecular Formula: C4H8O2 Formula Weight: 88.11 Synonym: Diox 1LT 1,4-Dioxane, 99.8%, Extra Dry, stabilized, AcroSeal

Quinoline Yellow, Water Soluble 95%, ACROS Organics™

Chemical Name or Material: Quinoline Yellow CAS: 8004-92-0 Purity Grade: Pure Assay: 95% Assay Percent Range: 95% 25GR Quinoline Yellow, 95%, pure, water soluble

Alfa Aesar™ 2,2':6',2''-Terpyridine-4'-carboxylic acid, 95%

Chemical Name or Material: 2,2':6',2''-Terpyridine-4'-carboxylic acid CAS: 148332-36-9 Formula Weight: 277.28 MDL Number: MFCD04114290 Synonym: 4'-Carboxy-2,2':6',2''-terpyridine 1GR 2,2':6',2''-Terpyridine-4'-carboxylic acid, 95% 1g

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™ 2,5-Dichloropyridine-4-carboxylic acid, 95%

Chemical Name or Material: 2,5-Dichloropyridine-4-carboxylic acid CAS: 88912-26-9 Molecular Formula: C6H3Cl2NO2 Formula Weight: 192 MDL Number: MFCD00466640 Synonym: 2,5-Dichloroisonicotinic acid 1GR 2,5-Dichloropyridine-4-carboxylic acid, 95% 1

Alfa Aesar™ 3-Acetylquinoline, 97%

Chemical Name or Material: 3-Acetylquinoline CAS: 33021-53-3 Molecular Formula: C11H9NO Formula Weight: 171.2 MDL Number: MFCD00030698 Synonym: Methyl quinolinyl ketone; 1-Quinolin-3-ylethanone 1GR 3-Acetylquinoline, 97%

Alfa Aesar™ 3-(Trifluoromethyl)pyridine-2-carboxylic acid, 97%

Chemical Name or Material: 3-(Trifluoromethyl)pyridine-2-carboxylic acid CAS: 87407-12-3 Formula Weight: 191.11 MDL Number: MFCD07375386 Synonym: 3-(Trifluoromethyl)picolinic acid 1GR 3-(Trifluoromethyl)pyridine-2-carboxylic acid, 97% 1g

Alfa Aesar™ 3,6-Difluorophthalic anhydride, 97%

Chemical Name or Material: 3,6-Difluorophthalic anhydride CAS: 652-40-4 Molecular Formula: C8H2F2O3 Formula Weight: 184.1 MDL Number: MFCD00134537 100MG 3,6-Difluorophthalic anhydride, 97% 100mg

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 2-AMINO-4-TERT-BUTYLTHIAZOLE, 98%,1G

Alfa Aesar™ 6-Bromoimidazo[1,2-a]pyridine-2-carboxylic acid hydrate, 95%

Chemical Name or Material: 6-Bromoimidazo[1,2-a]pyridine-2-carboxylic acid hydrate CAS: 749849-14-7 Molecular Formula: C8H5BrN2O2·xH2O Formula Weight: 241.05 (Anhydrous) MDL Number: MFCD22989345 250MG 6-Bromoimidazo[1,2-a]pyridine-2-carboxylic acid hydrate, 95% 250mg

Alfa Aesar™ Tris(2-thienyl)phosphine, 98+%

Chemical Name or Material: Tris(2-thienyl)phosphine CAS: 24171-89-9 Molecular Formula: C12H9PS3 Formula Weight: 280.37 MDL Number: MFCD00015471 Beilstein: 203736 Synonym: Tri(2-thienyl)phosphine TRIS(2-THIENYL)PHOSPHINE, 98+%,5G

Alfa Aesar™ gamma-Hexanolactone, 98%

Chemical Name or Material: gamma-Hexanolactone CAS: 695-06-7 Molecular Formula: C6H10O2 Formula Weight: 114.15 MDL Number: MFCD00005401 Beilstein: 107260 Synonym: gamma-Caprolactone; 5-Ethyldihydro-2(3H)-furanone GAMMA-HEXANOLACTONE, 98% 25G

Alfa Aesar™ 4-Amino-1H-pyrazolo[3,4-d]pyrimidine, 98%

Chemical Name or Material: 4-Amino-1H-pyrazolo[3,4-d]pyrimidine CAS: 2380-63-4 Molecular Formula: C5H5N5 Formula Weight: 135.13 MDL Number: MFCD00005688 UN Number: UN2811 Beilstein: 5824 Synonym: 1H-Pyrazolo[3,4-d]pyrimidin-4-amine 4-AMINOPYRAZOLO(3,4-D)PYRIMIDINE, 98%,1G

Alfa Aesar™ Ethyl 1H-pyrazole-4-carboxylate, 98%

Chemical Name or Material: Ethyl 1H-pyrazole-4-carboxylate CAS: 37622-90-5 Molecular Formula: C6H8N2O2 Formula Weight: 140.14 MDL Number: MFCD00010844 Synonym: 1H-Pyrazole-4-carboxylic acid ethyl ester ETHYL PYRAZOLE-4-CARBOXYLATE, 98%5G

Alfa Aesar™ 5-Bromo-2-ethoxypyridine, 97%

Chemical Name or Material: 5-Bromo-2-ethoxypyridine CAS: 55849-30-4 Molecular Formula: C7H8BrNO Formula Weight: 202.05 MDL Number: MFCD00234311 5-BROMO-2-ETHOXYPYRIDINE, 97% 25G

Alfa Aesar™ Dicyclohexano-18-crown-6, mixture of isomers, 97%

Chemical Name or Material: Dicyclohexano-18-crown-6 CAS: 16069-36-6 Name Note: mixture of isomers Molecular Formula: C20H36O6 Formula Weight: 372.5 MDL Number: MFCD00005099 UN Number: UN2811 Beilstein: 1130529 Merck Index: 14,2602 DICYCLOHEXANO-18-CROWN-6, MIXTURE OF ISOMERS, 97%1

Alfa Aesar™ 2-(3-Pyridyl)thiazolidine, 97%

Chemical Name or Material: 2-(3-Pyridyl)thiazolidine CAS: 700-93-6 Formula Weight: 166.24 MDL Number: MFCD01691463 Synonym: 3-(2-Thiazolidinyl)pyridine 1GR 2-(3-Pyridyl)thiazolidine, 97% 1g

Alfa Aesar™ 4-Fluoro-3-(2-methyl-1-piperidinylcarbonyl)benzeneboronic acid, 98%

Chemical Name or Material: 4-Fluoro-3-(2-methyl-1-piperidinylcarbonyl)benzeneboronic acid Molecular Formula: C13H17BFNO3 Formula Weight: 265.09 MDL Number: MFCD20265207 Synonym: 4-Fluoro-3-(2-methyl-1-piperidinylcarbonyl)phenylboronic acid 250MG 4-Fluoro-3-(2-methyl-1-piperidinylcarbonyl)benzeneboronic acid, 98% 250mg

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

Chemical Name or Material: Ethyl 2-amino-4-(4-pyridyl)thiophene-3-carboxylate CAS: 117516-88-8 Molecular Formula: C12H12N2O2S Formula Weight: 248.29 MDL Number: MFCD01922021 Synonym: 2-Amino-4-(4-pyridyl)thiophene-3-carboxylic acid ethyl ester 5GR Ethyl 2-amino-4-(4-pyridyl)thiophene-3-carboxylate, 97% 5g

1,3-Dioxolane, 99.8%, anhydrous, stabilized with 75 ppm BHT, AcroSeal™, ACROS Organics™

Chemical Name or Material: 1, 3-Dioxolane Name Note: Stabilized CAS: 646-06-0 CAS Min %: 99.75 CAS Max %: 100.0 CAS: 128-37-0 Assay: 99.8% Assay Percent Range: 99.8% Molecular Formula: C3H6O2 Formula Weight: 74.08 Synonym: 1.3-Dioxacyclopentane 100ML 1,3-Dioxolane, 99.8%, anhydrous, stabilizedwith 75 ppm BHT, AcroSeal

4-Nitropyridine N-oxide, ACROS Organics™

Chemical Name or Material: 4-Nitropyridine N-oxide CAS: 1124-33-0 CAS Min %: 96.0 CAS Max %: 100.0 Assay: ≥96.0% Assay Percent Range: 97% Molecular Formula: C5H4N2O3 Formula Weight: 140.1 MDL Number: MFCD00006206 25GR 4-Nitropyridine N-oxide, 97%

1,3,4-Triphenyl-4,5-dihydro-1H-1,2,4-triazol-5-ylidene, ACROS Organics™

1GR 1,3,4-Triphenyl-4,5-dihydro-1H-1,2,4-triazol-5-ylidene

(R)-(-)-2-(Methoxymethyl)pyrrolidine, 98%, ACROS Organics™

Chemical Name or Material: (R)-(-)-2-(Methoxymethyl)pyrrolidine CAS: 84025-81-0 CAS Min %: 97.5 CAS Max %: 100.0 Assay: 98% Assay Percent Range: 98% Molecular Formula: C6H13NO Formula Weight: 115.17 Synonym: O-Methyl-D-prolinol 1ML (R)-(-)-2-(Methoxymethyl)pyrrolidine, 98%

  spinner