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-(5-Chloropyrimidin-2-yl)ethanol

CAS: 322732-53-6
Formula: C₆H₇ClN₂O
MW: 158.58 g/mol

ZX-042165

2-(tert-Butyl)-4,5-dichloropyridazin-3(2H)-one, 95%

CAS: 84956-71-8
Formula: C₈H₁₀Cl₂N₂O
MW: 221.08 g/mol

ZX-010974

2-(Trifluoromethyl)-5-pyrimidineacetic Acid

CAS: 1216002-39-9
Formula: C₇H₅F₃N₂O₂
MW: 206.12 g/mol

ZX-043396

2-(Trifluoromethyl)pyrazine

CAS: 61655-67-2
Formula: C₅H₃F₃N₂
MW: 148.09 g/mol

ZX-045463

2-Acetyl-3-methylpyrazine

CAS: 23787-80-6
Formula: C₇H₈N₂O
MW: 136.15 g/mol

ZX-039613

2-Acetyl-3-methylquinoxaline 1-oxide

CAS: 61522-57-4
Formula: C₁₁H₁₀N₂O₂
MW: 202.21 g/mol

ZX-043913

2-Amino-3-morpholin-4-ylpyrazine

CAS: 117719-16-1
Formula: C₈H₁₂N₄O
MW: 180.21 g/mol

ZX-045689

2-Amino-4-chloropyrimidine, 97%

CAS: 3993-78-0
Formula: C₄H₄ClN₃
MW: 129.55 g/mol

ZX-010976

2-Amino-4,6-dichloropyrimidine, 98%

CAS: 56-05-3
Formula: C₄H₃Cl₂N₃
MW: 163.99 g/mol

ZX-010975

2-Amino-4,6-dimethyl pyrimidine

CAS: 767-15-7
Formula: C₆H₉N₃
MW: 123.16 g/mol

ZX-046788

2-Amino-5-fluoro-1H-pyrimidin-4-one

CAS: 1683-86-9
Formula: C₄H₄FN₃O
MW: 129.09 g/mol

ZX-034021

2-Aminopyrazine, 99%

CAS: 5049-61-6
Formula: C₄H₅N₃
MW: 95.1 g/mol

ZX-010977

2-Aminopyrimidine-5-carboxylic acid, 97%

CAS: 3167-50-8
Formula: C₅H₅N₃O₂
MW: 139.11 g/mol

ZX-010979

2-Aminopyrimidine, 97%

CAS: 109-12-6
Formula: C₄H₅N₃
MW: 95.1 g/mol

ZX-010978

2-Bromopyrimidine, 97%

CAS: 4595-60-2
Formula: C₄H₃BrN₂
MW: 158.98 g/mol

ZX-010980

2-Chloro-3-hydrazinopyrazine, 95%

CAS: 63286-28-2
Formula: C₄H₅ClN₄
MW: 144.56 g/mol

ZX-010981

2-Chloro-4,6-dimethoxypyrimidine

CAS: 13223-25-1
Formula: C₆H₇ClN₂O₂
MW: 174.58 g/mol

ZX-043938

2-Chloro-4,6-dimethylpyrimidine, 99%

CAS: 4472-44-0
Formula: C₆H₇ClN₂
MW: 142.58 g/mol

ZX-010982

2-Chloro-5-fluoro-4-methoxypyrimidine

CAS: 37554-70-4
Formula: C₅H₄ClFN₂O
MW: 162.55 g/mol

ZX-039565

2-Chloro-5-fluoropyrimidine

CAS: 62802-42-0
Formula: C₄H₂ClFN₂
MW: 132.52 g/mol

ZX-034423

2-Chloro-6,7-dihydrothieno[3,2-d]pyrimidine

CAS: 2724386-32-5
Formula: C₆H₅ClN₂S
MW: 172.64 g/mol

ZX-042210

2-Chloropyrimidine, 98%

CAS: 1722-12-9
Formula: C₄H₃ClN₂
MW: 114.53 g/mol

ZX-010983

2-Cyano pyrazine, 99%

CAS: 19847-12-2
Formula: C₅H₃N₃
MW: 105.1 g/mol

ZX-010984

2-Cyano-5 methyl pyrazine

CAS: 98006-91-8
Formula: C₆H₅N₃
MW: 119.12 g/mol

ZX-039795

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