Heterocyclic Building Blocks

Tetrahydrothiophen-3-one, 98%, ACROS Organics™

Chemical Name or Material: Tetrahydrothiophen-3-one Assay: ≥97.5% Assay Percent Range: 98% Molecular Formula: C4H6OS Formula Weight: 102.16 Synonym: 3-Thiophanone

Alfa Aesar™ 2,5-Dimethyl-1-phenylpyrrole-3-carboxaldehyde, 98+%

Chemical Name or Material: 2,5-Dimethyl-1-phenylpyrrole-3-carboxaldehyde CAS: 83-18-1 Molecular Formula: C13H13NO Formula Weight: 199.25 MDL Number: MFCD00051494 Beilstein: 144790

Alfa Aesar™ Methyl 2-thiopheneacetate, 98%

Chemical Name or Material: Methyl 2-thiopheneacetate CAS: 19432-68-9 Molecular Formula: C7H8O2S Formula Weight: 156.2 MDL Number: MFCD00041213 Beilstein: 120622 Synonym: Methyl 2-thienylacetate; 2-Thiopheneacetic acid methyl ester

5-Amino-2-methoxypyridine, 90%, tech., ACROS Organics™

Chemical Name or Material: 5-Amino-2-methoxypyridine CAS: 6628-77-9 CAS Min %: 88.0 CAS Max %: 100.0 Purity Grade: Technical Grade Assay: ≥88% Assay Percent Range: 90% Molecular Formula: C6H8N2O Linear Formula: CH3O(C5H3N)NH2 Formula Weight: 124.14 MDL Number: MFCD00006264

Alfa Aesar™ 2-Hydroxy-6-methyl-5-nitropyridine, 98%

Chemical Name or Material: 2-Hydroxy-6-methyl-5-nitropyridine CAS: 28489-45-4 Molecular Formula: C6H6N2O3 Formula Weight: 154.13 MDL Number: MFCD00092010 Synonym: 6-Hydroxy-3-nitro-2-picoline; 6-Methyl-5-nitro-2-pyridone

Alfa Aesar™ 6-Bromo-3-(3-oxycyclopentyl)indole, 95%

Chemical Name or Material: 6-Bromo-3-(3-oxycyclopentyl)indole CAS: 676170-06-2 Formula Weight: 278.14 Beilstein: 21019370 Synonym: 3-(6-Bromo-3-indolyl)cyclopentanone

Alfa Aesar™ 3-Bromothiophene, 97%

Chemical Name or Material: 3-Bromothiophene CAS: 872-31-1 Molecular Formula: C4H3BrS Formula Weight: 163.04 MDL Number: MFCD00005464 UN Number: UN2810 Beilstein: 105338 Synonym: 3-Thienyl bromide

1,1'-Oxalyldiimidazole, Technical, ACROS Organics™

Chemical Name or Material: 1, 1';-Oxalyldiimidazole CAS: 18637-83-7 Purity Grade: Technical Grade Assay: ≥80.0% Molecular Formula: C8H6N4O2 Formula Weight: 190.16 Synonym: Oxalic acid diimidazolide

Alfa Aesar™ 5-Amino-1,3-dimethyl-1H-pyrazole, 98%

Chemical Name or Material: 5-Amino-1,3-dimethyl-1H-pyrazole CAS: 3524-32-1 Molecular Formula: C5H9N3 Formula Weight: 111.14 MDL Number: MFCD00051651 Beilstein: 113420 Synonym: 1,3-Dimethyl-1H-pyrazol-5-amine

Alfa Aesar™ 1,7-Dioxaspiro[5.5]undecane, 98%

Chemical Name or Material: 1,7-Dioxaspiro[5.5]undecane CAS: 180-84-7 Molecular Formula: C9H16O2 Formula Weight: 156.23 MDL Number: MFCD00011578 Beilstein: 105997 Synonym: Olean

Phenothiazine, 99%, ACROS Organics™

Chemical Name or Material: Phenothiazine CAS: 92-84-2 Assay: ≥98.5% Assay Percent Range: 99% Molecular Formula: C12H9NS Formula Weight: 199.28 MDL Number: MFCD00005015

Alfa Aesar™ Potassium furan-2-trifluoroborate, 95%

Chemical Name or Material: Potassium furan-2-trifluoroborate CAS: 166328-14-9 Molecular Formula: C4H3BF3OK Formula Weight: 173.98 MDL Number: MFCD09842753

Alfa Aesar™ 2-Amino-4-imino-2-thiazoline hydrochloride, 99%

Chemical Name or Material: 2-Amino-4-imino-2-thiazoline hydrochloride CAS: 36518-76-0 Molecular Formula: C3H5N3S·HCl Formula Weight: 151.62 MDL Number: MFCD00012721 Beilstein: 5109728

Alfa Aesar™ 2,3-Difluoropyridine, 97%

Chemical Name or Material: 2,3-Difluoropyridine CAS: 1513-66-2 Molecular Formula: C5H3F2N Formula Weight: 115.08 MDL Number: MFCD04114143 UN Number: UN1993

Alfa Aesar™ 3-(4-Morpholinylcarbonyl)benzeneboronic acid pinacol ester

Chemical Name or Material: 3-(4-Morpholinylcarbonyl)benzeneboronic acid pinacol ester CAS: 1036991-25-9 Molecular Formula: C17H24BNO4 Formula Weight: 317.19 MDL Number: MFCD09266172 Synonym: 4-[4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)benzoyl]morpholine

6-Quinolineboronic acid pinacol ester, 97%, ACROS Organics™

Chemical Name or Material: 6-Quinolineboronic acid pinacol ester CAS: 406463-06-7 CAS Min %: 96.0 CAS Max %: 100.0 Assay: ≥96.0% Assay Percent Range: 97% Molecular Formula: C15H18BNO2 Formula Weight: 255.13 Synonym: 6-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)quinoline

Alfa Aesar™ 2-Isobutyl-4,5-dimethylthiazole, 99%

Chemical Name or Material: 2-Isobutyl-4,5-dimethylthiazole CAS: 53498-32-1 Molecular Formula: C9H15NS Formula Weight: 169.28 MDL Number: MFCD00053136

Alfa Aesar™ 3-Nitrophthalimide, 98%

Chemical Name or Material: 3-Nitrophthalimide CAS: 603-62-3 Molecular Formula: C8H4N2O4 Formula Weight: 192.13 MDL Number: MFCD00041852 Beilstein: 179965

5-Bromo-2-iodopyridine, 98%, ACROS Organics™

Chemical Name or Material: 5-Bromo-2-iodopyridine Name Note: 98% CAS: 223463-13-6 CAS Min %: 97.5 CAS Max %: 100.0 Assay: ≥97.5% Assay Percent Range: 98% Molecular Formula: C5H3BrIN Formula Weight: 283.89 MDL Number: MFCD00691506

Alfa Aesar™ 7-Bromoindole, 98%

Chemical Name or Material: 7-Bromoindole CAS: 51417-51-7 Molecular Formula: C8H6BrN Formula Weight: 196.05 MDL Number: MFCD00799492

Alfa Aesar™ 4-Methyl-1,2,3-thiadiazole-5-carboxylic acid, 98%

Chemical Name or Material: 4-Methyl-1,2,3-thiadiazole-5-carboxylic acid CAS: 18212-21-0 Molecular Formula: C4H4N2O2S Formula Weight: 144.15 MDL Number: MFCD00173830

Alfa Aesar™ 2-Methyl-2-thiazoline, 97%

Chemical Name or Material: 2-Methyl-2-thiazoline CAS: 2346-00-1 Molecular Formula: C4H7NS Formula Weight: 101.17 MDL Number: MFCD00005314 UN Number: UN1993 Beilstein: 104274 Synonym: 4,5-Dihydro-2-methylthiazole

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

Alfa Aesar™ 3-(4-Bromophenyl)-5-methyl-4-phenyl-4H-1,2,4-triazole, 97%

Chemical Name or Material: 3-(4-Bromophenyl)-5-methyl-4-phenyl-4H-1,2,4-triazole Molecular Formula: C15H12BrN3 Formula Weight: 314.18 MDL Number: MFCD22683118

Rhodamine B, ACROS Organics™

Chemical Name or Material: Rhodamine B CAS: 81-88-9 Purity Grade: Pure Molecular Formula: C28H31ClN2O3 Formula Weight: 479.01 MDL Number: MFCD00011931 Synonym: Basic Violet 10

Alfa Aesar™ 3-(4-Bromophenyl)-4-(3,4-dichlorophenyl)-5-methyl-4H-1,2,4-triazole, 97%

Chemical Name or Material: 3-(4-Bromophenyl)-4-(3,4-dichlorophenyl)-5-methyl-4H-1,2,4-triazole Molecular Formula: C15H10BrCl2N3 Formula Weight: 383.07 MDL Number: MFCD22683144

Alfa Aesar™ 4-Aminoantipyrine, 97%

Chemical Name or Material: 4-Aminoantipyrine CAS: 83-07-8 Molecular Formula: C11H13N3O Formula Weight: 203.25 MDL Number: MFCD00003145 Beilstein: 181635 Merck Index: 14,591 Synonym: 4-Amino-2,3-dimethyl-1-phenyl-3-pyrazolin-5-one; 4-Aminophenazone

Alfa Aesar™ 2-n-Propoxypyridine-3-carboxaldehyde, 98%

Chemical Name or Material: 2-n-Propoxypyridine-3-carboxaldehyde CAS: 885278-12-6 Molecular Formula: C9H11NO2 Formula Weight: 165.19 MDL Number: MFCD06804561 Synonym: 2-n-Propoxynicotinaldehyde

Alfa Aesar™ (S)-3-(Boc-amino)piperidine, 97%

Chemical Name or Material: (S)-3-(Boc-amino)piperidine CAS: 216854-23-8 Molecular Formula: C10H20N2O2 Formula Weight: 200.28 MDL Number: MFCD03093383

Rutin, 97+%, ACROS Organics™

Chemical Name or Material: Rutin Name Note: 97.0-102.0% CAS: 153-18-4 Assay: 97.0 to 102.0% (on dry basis) (Titrimetry other) Assay Percent Range: 97+% Molecular Formula: C27H30O16·3H2O Formula Weight: 664.58 MDL Number: MFCD00006830 Synonym: C.I. 75730

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