Heterocyclic Building Blocks

Nicotine ditartrate dihydrate, 98%, ACROS Organics™

Chemical Name or Material: Nicotine ditartrate dihydrate Name Note: 98% CAS Min %: 97.5 CAS Max %: 100.0 Assay: 98% Assay Percent Range: 98% Molecular Formula: 2C4H6O6·2H2O Formula Weight: 498.44 Synonym: (-)-Nicotine di-(+)-hydrogen tartrate dihydrate 10GR Nicotine ditartrate dihydrate, 98%

4,6-Dihydroxy-2-mercaptopyrimidine, 98%, ACROS Organics™

Chemical Name or Material: 4, 6-Dihydroxy-2-mercaptopyrimidine Name Note: 98% CAS: 504-17-6 CAS Min %: 97.5 CAS Max %: 100.0 Assay: ≥97.5% (Acid) Assay Percent Range: 98% Molecular Formula: C4H4N2O2S Formula Weight: 144.15 MDL Number: MFCD00006674 Synonym: 2-Thiobarbituric acid 500GR 4,6-Dihydroxy-2-mercaptopyrimidine, 98%

Nalidixic acid, 99.5%, ACROS Organics™

Chemical Name or Material: Nalidixic acid Name Note: 99.5% CAS: 389-08-2 CAS Min %: 99.4 CAS Max %: 100.0 Assay: 99.5% Assay Percent Range: 99.5% Molecular Formula: C12H12N2O3 Formula Weight: 232.24 MDL Number: MFCD00006884 Synonym: 1, 4-Dihydro-1-ethyl-7-methyl-4-oxo-1, 8-naphthyridine-3-carboxylic acid 25GR Nalidixic acid, 99.5%

1,10-Phenanthroline Monohydrochloride Monohydrate, 97%, ACROS Organics™

Chemical Name or Material: 1, 10-Phenanthroline monohydrochloride monohydrate CAS: 18851-33-7 CAS Min %: 96.0 CAS Max %: 100.0 Assay: 97% Assay Percent Range: 97% Molecular Formula: HCl·H2O Formula Weight: 234.69 MDL Number: MFCD00150061 Synonym: o-Phenanthroline monohydrochloride monohydrate 25GR 1,10-Phenanthroline monohydrochloride monohydrate, 97%

Alfa Aesar™ 3-Methylthiophene-2-carboxaldehyde, 98+%

Chemical Name or Material: 3-Methylthiophene-2-carboxaldehyde CAS: 5834-16-2 Molecular Formula: C6H6OS Formula Weight: 126.18 MDL Number: MFCD00005430 Beilstein: 107874 3-METHYLTHIOPHENE-2-CARBOXALDEHYDE, 98+%,5G

(S)-(-)-2-Pyrrolidone-5-carboxylic acid, 98%, ACROS Organics™

Chemical Name or Material: (S)-(-)-2-Pyrrolidone-5-carboxylic acid Assay: 98% Assay Percent Range: 98% Molecular Formula: C5H7NO3 Formula Weight: 129.12 Synonym: L-Pyroglutamic acid 100GR (S)-(-)-2-Pyrrolidone-5-carboxylic acid, 98%

Alfa Aesar™ Pyridine-2-carboxamide, 98%

Chemical Name or Material: Pyridine-2-carboxamide CAS: 1452-77-3 Molecular Formula: C6H6N2O Formula Weight: 122.13 MDL Number: MFCD00023483 Beilstein: 109617 Synonym: Picolinamide PYRIDINE-2-CARBOXAMIDE, 98%,25G

O-(Benzotriazol-1-yl)-N,N,N',N'-bis(tetramethylene)uronium hexafluorophosphate, 98%, ACROS Organics™

Chemical Name or Material: O-(Benzotriazol-1-yl)-N,N,N',N'-bis(tetramethylene)uronium hexafluorophosphate CAS: 105379-24-6 CAS Min %: 97.5 CAS Max %: 100.0 Assay Percent Range: 98% Molecular Formula: C15H20N5O·F6P Formula Weight: 431.32 Synonym: (Benzotriazol-1-yloxy)dipyrrolidinocarbenium hexafluorophosphate, HBPyU 5GR O-(Benzotriazol-1-yl)-N,N,N',N'-bis(tetramethylene)uronium hexafluorophosphate, 98%

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

Chemical Name or Material: Thiophene Name Note: 99+% CAS: 110-02-1 Purity Grade: Extra Pure Assay: ≥99% Assay Percent Range: 99+% Molecular Formula: C4H4S Formula Weight: 84.14 MDL Number: MFCD00005413 500GR Thiophene, 99+%, extra pure

2,2'-Thenil 98+%, ACROS Organics™

Chemical Name or Material: 2, 2';-Thenil CAS: 7333-07-5 CAS Min %: 98.0 CAS Max %: 100.0 Assay: ≥98.0% Assay Percent Range: 98+% Molecular Formula: C10H6O2S2 Formula Weight: 222.29 MDL Number: MFCD00173678 Synonym: Di-2-thienylethanedione, 1, 2-Di(thiophen-2-yl)ethane-1, 2-dione 1GR 2,2'-Thenil, 98+%

Nickel Phthalocyanine 95%, ACROS Organics™

Chemical Name or Material: Nickel phthalocyanine Name Note: 95% CAS: 14055-02-8 CAS Min %: 94.0 CAS Max %: 100.0 Assay Percent Range: 95% Molecular Formula: C32H16N8Ni Formula Weight: 571.21 MDL Number: MFCD00041954 25GR Nickel phthalocyanine, 95%

3-Methylfuran, 98%, ACROS Organics™

1GR 3-Methylfuran, 98%

N-Acetyl-4-piperidone, 97%, ACROS Organics™

Chemical Name or Material: N-Acetyl-4-piperidone Name Note: 97% CAS: 32161-06-1 CAS Min %: 96.0 CAS Max %: 100.0 Assay: ≥96.0% Assay Percent Range: 97% Molecular Formula: C7H11NO2 Formula Weight: 141.17 MDL Number: MFCD00006190 100GR N-Acetyl-4-piperidone, 97%

Alfa Aesar™ 6-Chloroindole-3-carboxaldehyde, 98%

Chemical Name or Material: 6-Chloroindole-3-carboxaldehyde CAS: 703-82-2 Formula Weight: 179.6 MDL Number: MFCD06657152 5GR 6-Chloroindole-3-carboxaldehyde, 98% 5g

NADPH tetrasodium salt hydrate, 96%, extra pure, ACROS Organics™

Chemical Name or Material: NADPH tetrasodium salt hydrate Name Note: approx. 98% CAS: 2646-71-1 CAS Min %: 97.5 CAS Max %: 100.0 Purity Grade: Extra Pure Assay Percent Range: 96% Molecular Formula: C21H26N7Na4O17P3·xH2O Formula Weight: 833.35 MDL Number: MFCD07366294 Synonym: alpha3-Nicotinamide adenine dinucleotide phophate (reduced form 250MG NADPH tetrasodium salt hydrate, 96%, extra pure

Alfa Aesar™ 3-Benzyl-5-(2-hydroxyethyl)-4-methylthiazolium chloride, 98%

Chemical Name or Material: 3-Benzyl-5-(2-hydroxyethyl)-4-methylthiazolium chloride CAS: 4568-71-2 Molecular Formula: C13H16ClNOS Formula Weight: 269.8 MDL Number: MFCD00011959 Beilstein: 3788921 3-BENZYL-5-(2-HYDROXYETHYL)-4-METHYLTHIAZOLIUM ,10

Alfa Aesar™ 2-Hydrazino-4-(trifluoromethyl)pyrimidine, 97%

Chemical Name or Material: 2-Hydrazino-4-(trifluoromethyl)pyrimidine CAS: 197305-97-8 Molecular Formula: C5H5F3N4 Formula Weight: 178.12 MDL Number: MFCD00115112 UN Number: UN2811 1GR 2-Hydrazino-4-(trifluoromethyl)pyrimidine, 97% 1g

Xanthine, 98%, ACROS Organics™

Chemical Name or Material: Xanthine CAS: 69-89-6 Assay: 98% Assay Percent Range: 98% Molecular Formula: C5H4N4O2 Formula Weight: 152.11 MDL Number: MFCD00078453 25GR Xanthine, 98%

2,2'-Dithiodipyridine, 98%, ACROS Organics™

Chemical Name or Material: 2, 2';-Dithiodipyridine CAS: 2140-11-6 CAS Min %: 97.5 CAS Max %: 100.0 Assay: ≥97.5% (GC) Assay Percent Range: 98% Molecular Formula: C10H8N2S2 Linear Formula: (C5H4N)S-S(C5H4N) Formula Weight: 220.32 MDL Number: MFCD00006287 100GR 2,2'-Dithiodipyridine, 98%

2-Furaldehyde, 99%, ACROS Organics™

Chemical Name or Material: 2-Furaldehyde CAS: 98-01-1 CAS Min %: 98.5 CAS Max %: 100.0 Assay: ≥98.5% Assay Percent Range: 99% Molecular Formula: C5H4O2 Formula Weight: 96.08 MDL Number: MFCD00003229 Synonym: Furfural, 2-Furancarboxaldehyde, Furfuraldehyde 2.5LT 2-Furaldehyde, 99%

Alfa Aesar™ 9-Phenylcarbazole, 99%

Chemical Name or Material: 9-Phenylcarbazole CAS: 1150-62-5 Molecular Formula: C18H13N Formula Weight: 243.3 MDL Number: MFCD00004965 5GR 9-Phenylcarbazole, 99%

Alfa Aesar™ 3-Cyclohexyl-1-methyl-2-thiohydantoin, 95%

Chemical Name or Material: 3-Cyclohexyl-1-methyl-2-thiohydantoin Formula Weight: 212.31 MDL Number: MFCD02855391 Synonym: 3-Cyclohexyl-1-methyl-2-thioxo-4-imidazolidinone 1GR 3-Cyclohexyl-1-methyl-2-thiohydantoin, 95% 1g

Alfa Aesar™ Sulfolane, 99%

Chemical Name or Material: Sulfolane CAS: 126-33-0 Molecular Formula: C4H8O2S Formula Weight: 120.17 MDL Number: MFCD00005484 Beilstein: 107765 Merck Index: 14,8955 Synonym: Tetramethylene Sulfone; Tetrahydrothiophene 1,1-dioxide TETRAMETHYLENE SULFONE, 99%,250G

Alfa Aesar™ Carbazole, 95%

Chemical Name or Material: Carbazole CAS: 86-74-8 Molecular Formula: C12H9N Formula Weight: 167.21 MDL Number: MFCD00004960 UN Number: UN3077 Beilstein: 3956 Merck Index: 14,1790 CARBAZOLE, TECHNICAL GRADE90-95%50G

Thiazolyl blue tetrazolium bromide, 98%, Acros Organics™

Chemical Name or Material: Thiazolyl blue tetrazolium bromide Name Note: 98% CAS: 298-93-1 CAS Min %: 97.5 CAS Max %: 100.0 Assay Percent Range: 98% Molecular Formula: C18H16BrN5S Formula Weight: 414.32 Synonym: 3-(4, 5-Dimethylthiazol-2-yl)-2, 5-diphenyl-2H-tetrazolium bromide 250MG Thiazolyl blue tetrazolium bromide, 98%

5-Fluoro-2-hydroxypyridine, 97%, ACROS Organics™

Chemical Name or Material: 5-Fluoro-2-hydroxypyridine CAS: 51173-05-8 CAS Min %: 96.0 CAS Max %: 100.0 Assay: 97% Assay Percent Range: 97% Molecular Formula: C5H4FNO Formula Weight: 113.09 MDL Number: MFCD03092918 25GR 5-Fluoro-2-hydroxypyridine, 97%

3-Thienylmagnesium iodide, 0.3M solution in THF, AcroSeal™, ACROS Organics™

50ML 3-Thienylmagnesium iodide, 0.3M solution in THF, AcroSeal

6-Amino-3-methyl-1,3-benzoxazol-2(3H)-one, 90%, ACROS Organics™

Chemical Name or Material: 6-Amino-3-methyl-1, 3-benzoxazol-2(3H)-one CAS: 99584-10-8 CAS Min %: 88.0 CAS Max %: 100.0 Assay: ≥88.0% Assay Percent Range: 90% Molecular Formula: C8H8N2O2 Formula Weight: 164.17 MDL Number: MFCD07801206 5GR 6-Amino-3-methyl-1,3-benzoxazol-2(3H)-one, 90%

Alfa Aesar™ N-Phenylmaleimide, 98+%

Chemical Name or Material: N-Phenylmaleimide CAS: 941-69-5 Molecular Formula: C10H7NO2 Formula Weight: 173.17 MDL Number: MFCD00005502 UN Number: UN2811 Beilstein: 125098 Merck Index: 14,7299 Synonym: 1-Phenyl-1H-pyrrole-2,5-dione N-PHENYLMALEIMIDE, 98+% 100G

Diethyl pyrazole-3,5-dicarboxylate, 99%, ACROS Organics™

Chemical Name or Material: Diethyl pyrazole-3,5-dicarboxylate Name Note: 99% CAS: 37687-24-4 Assay: 99% Assay Percent Range: 99% Molecular Formula: C9H12N2O4 Formula Weight: 212.21 MDL Number: MFCD00152167 1GR Diethyl pyrazole-3,5-dicarboxylate, 99%

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