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.

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N1-methyl-pseudouridine-5`-triphosphate

CAS: 1428903-59-6
Formula: C₁₀H₁₇N₂O₁₅P₃
MW: 498.17 g/mol

ZX-042058

N4-Acetylcytosine

CAS: 14631-20-0
Formula: C₆H₇N₃O₂
MW: 153.14 g/mol

ZX-011045

N4-Acetylcytosine, 99%

CAS: 14631-20-0
Formula: C₆H₇N₃O₂
MW: 153.14 g/mol

ZX-011046

Ningnanmycin

CAS: 156410-09-2
Formula: C₁₆H₂₅N₇O₈
MW: 443.41 g/mol

ZX-047267

O(4)-Ethylthymine

CAS: 10557-55-8
Formula: C₇H₁₀N₂O₂
MW: 154.17 g/mol

ZX-044616

Orotic acid, monohydrate, 97%

CAS: 50887-69-9
Formula: C₅H₆N₂O₅
MW: 174.11 g/mol

ZX-011047

Oxythiamine chloride hydrochloride, ≥95% (HPLC)

CAS: 614-05-1
Formula: C₁₂H₁₇Cl₂N₃O₂S
MW: 338.3 g/mol

ZX-011048

Phenazine ethosulfate, ≥97%

CAS: 10510-77-7
Formula: C₁₆H₁₈N₂O₄S
MW: 334.4 g/mol

ZX-011049

Polyoxin B

CAS: 19396-06-6
Formula: C₁₇H₂₅N₅O₁₃
MW: 507.4 g/mol

ZX-047193

Primisulfuron

CAS: 113036-87-6
Formula: C₁₄H₁₀F₄N₄O₇S
MW: 454.31 g/mol

ZX-041631

Propoxyphenyl Sildenafil

CAS: 877777-10-1
Formula: C₂₃H₃₂N₆O₄S
MW: 488.6 g/mol

ZX-042970

Pyrazinamide, 98%

CAS: 98-96-4
Formula: C₅H₅N₃O
MW: 123.11 g/mol

ZX-011050

Pyrazine

CAS: 290-37-9
Formula: C₄H₄N₂
MW: 80.09 g/mol

ZX-034300

Pyrazine-2-carboxylic acid, 99%

CAS: 98-97-5
Formula: C₅H₄N₂O₂
MW: 124.1 g/mol

ZX-011051

Pyrimidine

CAS: 289-95-2
Formula: C₄H₄N₂
MW: 80.09 g/mol

ZX-046249

Pyrimidine-5-Boronic Acid

CAS: 109299-78-7
Formula: C₄H₅BN₂O₂
MW: 123.91 g/mol

ZX-043536

Pyrimidinium, 2,3-dihydro-1,3-dimethyl-2-oxo-, chloride

CAS: 21966-78-9
Formula: C₆H₉ClN₂O
MW: 160.6 g/mol

ZX-045791

Pyrithiobac

CAS: 123342-93-8
Formula: C₁₃H₁₁ClN₂O₄S
MW: 326.76 g/mol

ZX-041547

Quinocetone

CAS: 81810-66-4
Formula: C₁₈H₁₄N₂O₃
MW: 306.3 g/mol

ZX-043834

Riboflavin Sodium Phosphate Salt, LR, for spectroscopy 73.00–79.00%

CAS: 130-40-5
Formula: C₁₇H₂₀N₄NaO₉P
MW: 478.3 g/mol

ZX-038355

Riboflavin, for spectroscopy ≥99.00%

CAS: 83-88-5
Formula: C₁₇H₂₀N₄O₆
MW: 376.4 g/mol

ZX-038237

Rimsulfuron-Desulfon

CAS: 138724-53-5
Formula: C₁₄H₁₇N₅O₅S
MW: 367.38 g/mol

ZX-047201

S-Doxazosin

CAS: 104874-86-4
Formula: C₂₃H₂₅N₅O₅
MW: 451.5 g/mol

ZX-044298

Sapropetrin dihydrochloride, 95%

CAS: 69056-38-8
Formula: C₉H₁₇Cl₂N₅O₃
MW: 314.17 g/mol

ZX-011052

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