Heterocyclic Building Blocks

1-Hexadecylpyridinium chloride monohydrate, 96.0-101.0%, ACROS Organics™

Chemical Name or Material: 1-Hexadecylpyridinium chloride monohydrate Name Note: 96.0-101.0% CAS: 6004-24-6 CAS Min %: 96.0 CAS Max %: 100.0 Assay: 96.0-101.0% Assay Percent Range: 96.0-101.0% Molecular Formula: C21H38ClN·H2O Formula Weight: 358.01 MDL Number: MFCD00149977 Synonym: Cetylpyridinium chloride monohydrate 500GR 1-Hexadecylpyridinium chloride monohydrate,96.0-101.0%

Alfa Aesar™ Piperazine dihydrochloride monohydrate, 98%

Chemical Name or Material: Piperazine dihydrochloride monohydrate CAS: 6091-62-9 Molecular Formula: C4H10N2·2HCl·H2O Formula Weight: 177.08 (159.06 Anhydrous) MDL Number: MFCD00150089 PIPERAZINE DIHYDROCHLORIDEMONOHYDRATE, 98%,1000G

Alfa Aesar™ 2,4-Dichloro-6-(4-fluorophenylamino)-1,3,5-triazine

Chemical Name or Material: 2,4-Dichloro-6-(4-fluorophenylamino)-1,3,5-triazine CAS: 131468-33-2 Molecular Formula: C9H5Cl2FN4 Formula Weight: 259.07 MDL Number: MFCD00115403 Synonym: 4,6-Dichloro-N-(4-fluorophenyl)-1,3,5-triazin-2-amine 4,6-DICHLORO-N-(4-FLUOROPHENYL)-1,3,5-TRIAZIN-2- 1

Aflatoxin B1, crystalline, ACROS Organics™

Chemical Name or Material: Aflatoxin B1 CAS: 1162-65-8 Molecular Formula: C17H12O6 Formula Weight: 312.27 MDL Number: MFCD00869647 10MG Aflatoxin B1, crystalline

Quinine monohydrochloride dihydrate, 99%, ACROS Organics™

Chemical Name or Material: Quinine monohydrochloride dihydrate Name Note: 99% CAS: 6119-47-7 Assay: 99% Assay Percent Range: 99% Molecular Formula: HCl·2H2O Formula Weight: 396.92 MDL Number: MFCD00151248 25GR Quinine monohydrochloride dihydrate, 99%

Benzotriazol-1-yloxytris(dimethylamino)-phosphonium hexafluorophosphate, 98+%, ACROS Organics™

Chemical Name or Material: Benzotriazol-1-yloxytris(dimethylamino)-phosphonium hexafluorophosphate Assay: ≥98% Assay Percent Range: 98+% Molecular Formula: C12H22N6OP·PF6 Formula Weight: 442.27 Synonym: BOP Reagent 25GR Benzotriazol-1-yloxytris(dimethylamino)-phosphonium hexafluorophosphate, 98+%

Cyanuric acid, 98%, ACROS Organics™

Chemical Name or Material: Cyanuric acid Name Note: 98% CAS: 108-80-5 Assay: ≥97.5% Assay Percent Range: 98% Molecular Formula: C3H3N3O3 Formula Weight: 129.07 MDL Number: MFCD00082990 Synonym: 1,3,5-Triazine-2,4,6-triol 250GR Cyanuric acid, 98%

Hemin, 99%, porcine, ACROS Organics™

Chemical Name or Material: Hemin Name Note: 99% CAS: 16009-13-5 Assay: ≥97.5% (HPLC) Assay Percent Range: 98% Molecular Formula: C34H32ClFeN4O4 Formula Weight: 651.95 MDL Number: MFCD00010726 Synonym: Chloroprotoporphyrin IX iron(III) 1GR Hemin, 98%, porcine

Alfa Aesar™ L-(-)-alpha-Amino-gamma-butyrolactone hydrobromide, 98%

Chemical Name or Material: L-(-)-alpha-Amino-gamma-butyrolactone hydrobromide CAS: 15295-77-9 Molecular Formula: C4H7NO2·HBr Formula Weight: 182.02 MDL Number: MFCD00012723 Beilstein: 3912375 L-(-)-ALPHA-AMINO-GAMMA-BUTYROLACTONE HBR,1G

Alfa Aesar™ beta-Propiolactone, 97%

Chemical Name or Material: beta-Propiolactone CAS: 57-57-8 Molecular Formula: C3H4O2 Formula Weight: 72.06 MDL Number: MFCD00005169 UN Number: UN3382 Merck Index: 14,7820 Synonym: beta-Propionolide; 3-Hydroxypropionic acid lactone BETA-PROPIOLACTONE, 97% 25G

Alfa Aesar™ 5-Methyl-1H-tetrazole, 97%

Chemical Name or Material: 5-Methyl-1H-tetrazole CAS: 4076-36-2 Molecular Formula: C2H4N4 Formula Weight: 84.08 MDL Number: MFCD00129971 5GR 5-Methyl-1H-tetrazole, 97% 5g

Alfa Aesar™ 1,2-Epoxydecane, 97%

Chemical Name or Material: 1,2-Epoxydecane CAS: 2404-44-6 Molecular Formula: C10H20O Formula Weight: 156.27 MDL Number: MFCD00005158 Beilstein: 104132 Synonym: 1-Decene oxide 1,2-EPOXYDECANE, 97% 5G

Alfa Aesar™ Albendazole, 98+%

Chemical Name or Material: Albendazole CAS: 54965-21-8 Molecular Formula: C12H15N3O2S Formula Weight: 265.34 MDL Number: MFCD00083232 Merck Index: 14,210 Synonym: Methyl 5-n-propylthio-2-benzimidazolecarbamate ALBENDAZOLE, 98+% 100G

Ethyl 2-amino-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate, 99%, ACROS Organics™

Chemical Name or Material: Ethyl 2-amino-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate Name Note: 99% CAS: 4506-71-2 Assay: 99% Assay Percent Range: 99% Molecular Formula: C11H15NO2S Formula Weight: 225.31 Synonym: 2-Amino-3-carbethoxy-4, 5-tetramethylenethiophene 10GR Ethyl 2-amino-4,5,6,7-tetrahydrobenzo¢b!thiophene-3-carboxylate, 99%

2-Chloromethylbenzimidazole 95%, ACROS Organics™

Chemical Name or Material: 2-Chloromethylbenzimidazole Name Note: 95% CAS Min %: 94.0 CAS Max %: 100.0 Assay: ≥94% Assay Percent Range: 95% Molecular Formula: C8H7ClN2 Formula Weight: 166.61 MDL Number: MFCD00005602 25GR 2-Chloromethylbenzimidazole, 95%

Alfa Aesar™ Thymolphthalein

Chemical Name or Material: Thymolphthalein CAS: 125-20-2 Molecular Formula: C28H30O4 Formula Weight: 430.55 MDL Number: MFCD00005909 Beilstein: 359413 Merck Index: 14,9401 THYMOLPHTHALEIN 50G

Pyridine, 99+%, extra pure, ACROS Organics™

Chemical Name or Material: Pyridine CAS: 110-86-1 Purity Grade: Extra Pure Assay: ≥99% Assay Percent Range: 99+% Molecular Formula: C5H5N Formula Weight: 79.1 MDL Number: MFCD00011732 50ML Pyridine, 99+%, extra pure

Alfa Aesar™ 2,4,6-Tri(2-pyridyl)-1,3,5-triazine, 98%

Chemical Name or Material: 2,4,6-Tri(2-pyridyl)-1,3,5-triazine CAS: 3682-35-7 Molecular Formula: C18H12N6 Formula Weight: 312.34 MDL Number: MFCD00006045 Beilstein: 282581 Merck Index: 14,9750 Synonym: 2,4,6-Tri(2-pyridyl)-s-triazine 2,4,6-TRI(2-PYRIDYL)-S-TRIAZINE, 98%,5G

5-Methyl-4-nitroimidazole, 98%, ACROS Organics™

Chemical Name or Material: 4-Methyl-5-nitroimidazole CAS: 14003-66-8 CAS Min %: 97.5 CAS Max %: 100.0 Assay: ≥97.5% Assay Percent Range: 98% Molecular Formula: C4H5N3O2 Formula Weight: 127.1 1GR 4-Methyl-5-nitroimidazole, 98%

2-Iodothiophene, 98+%, ACROS Organics™

10ML 2-Iodothiophene, 98+%

Alfa Aesar™ 1-(2-Pyridyl)ethylamine, 96%

Chemical Name or Material: 1-(2-Pyridyl)ethylamine CAS: 42088-91-5 Molecular Formula: C7H10N2 Formula Weight: 122.17 MDL Number: MFCD05215238 UN Number: UN2735 Synonym: alpha-Methyl-2-pyridinemethylamine 250MG 1-(2-Pyridyl)ethylamine, 96% 250mg

Alfa Aesar™ 4-Isochromanone, 95%

Chemical Name or Material: 4-Isochromanone CAS: 20924-56-5 Formula Weight: 148.16 MDL Number: MFCD09744058 1GR 4-Isochromanone, 95%

Harmine, 98%, ACROS Organics™

250MG Harmine, 98%

Alfa Aesar™ gamma-Valerolactone, 98+%

Chemical Name or Material: gamma-Valerolactone CAS: 108-29-2 Molecular Formula: C5H8O2 Formula Weight: 100.12 MDL Number: MFCD00005400 Beilstein: 80420 Synonym: 4,5-Dihydro-5-methyl-2(3H)-furanone; 4-Hydroxypentanoic acid lactone GAMMA-VALEROLACTONE, 99% 500G

Methylene Blue, pure, certified, ACROS Organics™

Chemical Name or Material: Methylene Blue CAS: 61-73-4 Purity Grade: Pure Molecular Formula: C16H18ClN3S Formula Weight: 319.85 MDL Number: MFCD00012111 Synonym: Basic Blue 9 100GR Methylene Blue, pure, certified, residual water

Adenine, 99.5+%, ACROS Organics™

Chemical Name or Material: Adenine CAS: 73-24-5 CAS Min %: 99.5 CAS Max %: 100.0 Assay: ≥98.5% (HPLC) Assay Percent Range: 99% Molecular Formula: C5H5N5 Formula Weight: 135.13 MDL Number: MFCD00041790 Synonym: 6-Aminopurine 100GR Adenine, 99%

1-Methyl-2-pyrrolidinone, 99.5%, Extra Dry over Molecular Sieve, AcroSeal™, ACROS Organics™

Chemical Name or Material: 1-Methyl-2-pyrrolidinone Name Note: Over Molecular Sieves CAS: 872-50-4 CAS Min %: 99.4 CAS Max %: 100.0 Purity Grade: Extra Dry over Molecular Sieve Assay: 99.5% Assay Percent Range: 99.5% Molecular Formula: C5H9NO Formula Weight: 99.13 MDL Number: MFCD00003193 Synonym: N-Methylpyrrolidone 1LT 1-Methyl-2-pyrrolidinone, 99.5%, Extra Dry over Molecular Sieve, AcroSeal

Imidazole, 99+%, crystalline, ACROS Organics™

Chemical Name or Material: Imidazole CAS: 288-32-4 Physical Form: Crystalline Powder Assay: ≥99% Assay Percent Range: 99+% Molecular Formula: C3H4N2 Formula Weight: 68.08 MDL Number: MFCD00005183 1KG Imidazole, 99+%, crystalline

Uric acid, +99%, ACROS Organics™

Chemical Name or Material: Uric acid Name Note: 99+% CAS: 69-93-2 Assay: ≥99.0% (ex N) Assay Percent Range: 99+% Molecular Formula: C5H4N4O3 Formula Weight: 168.11 MDL Number: MFCD00005712 Synonym: 2, 6, 8-Trioxypurine 1KG Uric acid, 99+%

Imidazole, 99%, ACROS Organics™

Chemical Name or Material: Imidazole Assay: ≥98.5% Assay Percent Range: 99% Molecular Formula: C3H4N2 Formula Weight: 68.08 100GR Imidazole, 99%

  spinner