Heterocyclic Building Blocks

Pyrimidines, Pyrazines & Pyridazines

Chloropyrimidines, aminopyrimidines, uracils, pyrazines and pyridazines for nucleoside, kinase inhibitor, antiviral and agrochemical synthesis in research and scale-up.

286 products13 in stockCOA + SDS with every lot

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2-Cyanopyrimidine

CAS: 14080-23-0
Formula: C₅H₃N₃
MW: 105.1 g/mol

ZX-035741

2-Hydroxypyrazine, 97%

CAS: 6270-63-9
Formula: C₄H₄N₂O
MW: 96.09 g/mol

ZX-010985

2-Hydroxypyrimidine hydrochloride, 98%

CAS: 38353-09-2
Formula: C₄H₅ClN₂O
MW: 132.55 g/mol

ZX-010986

2-Mercapto-5,6-Dimethylpyrimidin-4-ol

CAS: 28456-54-4
Formula: C₆H₈N₂OS
MW: 156.21 g/mol

ZX-035506

2-Methoxy-5-fluoro-4-aminopyrimidine

CAS: 1993-63-1
Formula: C₅H₆FN₃O
MW: 143.12 g/mol

ZX-033473

2-Methyl-pyrazine

CAS: 109-08-0
Formula: C₅H₆N₂
MW: 94.11 g/mol

ZX-034178

2-Methylquinazoline

CAS: 700-79-8
Formula: C₉H₈N₂
MW: 144.17 g/mol

ZX-035165

2-Methylquinoxaline, 97%

CAS: 7251-61-8
Formula: C₉H₈N₂
MW: 144.17 g/mol

ZX-010987

2-Methylthiouracil

CAS: 5751-20-2
Formula: C₅H₆N₂OS
MW: 142.18 g/mol

ZX-035064

2,3-Benzodiazine

CAS: 253-52-1
Formula: C₈H₆N₂
MW: 130.15 g/mol

ZX-010961

2,3-Bis[(acetyloxy)methyl]-1-oxoquinoxalin--1-ium-4(1H)-olate

CAS: 10103-89-6
Formula: C₁₄H₁₄N₂O₆
MW: 306.27 g/mol

ZX-034755

2,3-Diaminophenazine

CAS: 655-86-7
Formula: C₁₂H₁₀N₄
MW: 210.23 g/mol

ZX-035371

2,3-Dichloropyrazine

CAS: 4858-85-9
Formula: C₄H₂Cl₂N₂
MW: 148.98 g/mol

ZX-039690

2,3-Pyrazinedicarboxylic acid, 97%

CAS: 89-01-0
Formula: C₆H₄N₂O₄
MW: 168.11 g/mol

ZX-010962

2,4-Diamino-6-hydroxypyrimidine, 98%

CAS: 56-06-4
Formula: C₄H₆N₄O
MW: 126.12 g/mol

ZX-010964

2,4-Diaminopyrimidine, 98%

CAS: 156-81-0
Formula: C₄H₆N₄
MW: 110.12 g/mol

ZX-010965

2,4-Dichloro-5,7-dihydrothieno(3,4-d)pyrimidine

CAS: 74901-71-6
Formula: C₆H₄Cl₂N₂S
MW: 207.08 g/mol

ZX-040607

2,4-Dichloro-6-methylpyrimidine

CAS: 5424-21-5
Formula: C₅H₄Cl₂N₂
MW: 163 g/mol

ZX-045182

2,4-Dichloropyrimidine, 98%

CAS: 3934-20-1
Formula: C₄H₂Cl₂N₂
MW: 148.98 g/mol

ZX-010966

2,4-Dichlorothieno[3,2-d]pyrimidine

CAS: 16234-14-3
Formula: C₆H₂Cl₂N₂S
MW: 205.06 g/mol

ZX-040608

2,4-Dihydroxypyrimidine

CAS: 51953-14-1
Formula: C₄H₄N₂O₂
MW: 112.09 g/mol

ZX-010967

2,4,5-Trichloropyrimidine

CAS: 5750-76-5
Formula: C₄HCl₃N₂
MW: 183.42 g/mol

ZX-035672

2,4,5,6-Tetraaminopyrimidine dihydrochloride

CAS: 52980-67-3
Formula: C₄H₁₀Cl₂N₆
MW: 213.07 g/mol

ZX-040020

2,4,6-Trichloro-5-pyrimidinecarboxaldehyde

CAS: 50270-27-4
Formula: C₅HCl₃N₂O
MW: 211.43 g/mol

ZX-043937

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