Skip to content

Pharma Intermediates & Building Blocks

Pyrimidines, Pyrazines & Pyridazines

Source 104 pyrimidines, pyrazines & pyridazines for research, QC and production, documented with COA and SDS.

162products

13in stock

COA + SDSwith every lot

Gefitinib chemical structure

CAS: 184475-35-2
Formula: C₂₂H₂₄ClFN₄O₃
MW: 446.9 g/mol

VQ-019529

Gemcitabine hydrochloride, ≥98% chemical structure

Gemcitabine hydrochloride, ≥98%

CAS: 122111-03-9
Formula: C₉H₁₂ClF₂N₃O₄
MW: 299.66 g/mol

VQ-011976

Maleic Hydrazide Monopotassium chemical structure

Maleic Hydrazide Monopotassium

CAS: 28382-15-2
Formula: C₄H₃KN₂O₂
MW: 150.18 g/mol

VQ-020549

Synthesis

Maleic hydrazide, 98% chemical structure

Maleic hydrazide, 98%

CAS: 123-33-1
Formula: C₄H₄N₂O₂
MW: 112.09 g/mol

VQ-011977

AR

Maleic hydrazide, AR chemical structure

Maleic hydrazide, AR

CAS: 123-33-1
Formula: C₄H₄N₂O₂
MW: 112.09 g/mol

VQ-046708

Meat peptone chemical structure

CAS: 91079-38-8
Formula: C₃₀H₄₄N₂O₅S
MW: 544.7 g/mol

VQ-011978

Methotrexate Disodium Salt chemical structure

Methotrexate Disodium Salt

CAS: 7413-34-5
Formula: C₂₀H₂₀N₈Na₂O₅
MW: 498.4 g/mol

VQ-046725

Methotrexate hydrate, ≥98% (HPLC), powder chemical structure

Methotrexate hydrate, ≥98% (HPLC), powder

CAS: 133073-73-1
Formula: C₂₀H₂₄N₈O₆
MW: 472.5 g/mol

VQ-011979

Methotrexate, 98% chemical structure

Methotrexate, 98%

CAS: 59-05-2
Formula: C₂₀H₂₂N₈O₅
MW: 454.4 g/mol

VQ-011980

Methyl 2,6-dichloro-5-methoxypyrimidine-4-carboxylate, 98% chemical structure

Methyl 2,6-dichloro-5-methoxypyrimidine-4-carboxylate, 98%

CAS: 878650-31-8
Formula: C₇H₆Cl₂N₂O₃
MW: 237.04 g/mol

VQ-011981

Methyl 3-amino-2-pyrazinecarboxylate, 97% chemical structure

Methyl 3-amino-2-pyrazinecarboxylate, 97%

CAS: 16298-03-6
Formula: C₆H₇N₃O₂
MW: 153.14 g/mol

VQ-011982

Reference Standard

Methyl 4,6-dichloropyridazine-3-carboxylate chemical structure

Methyl 4,6-dichloropyridazine-3-carboxylate

CAS: 372118-01-9
Formula: C₆H₄Cl₂N₂O₂
MW: 207.01 g/mol

In stock

Methyl 5-methylpyrazine-2-carboxylate, 97% chemical structure

Methyl 5-methylpyrazine-2-carboxylate, 97%

CAS: 41110-33-2
Formula: C₇H₈N₂O₂
MW: 152.15 g/mol

VQ-011984

Methylfolate calcium, 95% chemical structure

Methylfolate calcium, 95%

CAS: 26560-38-3
Formula: C₂₀H₂₃CaN₇O₆
MW: 497.5 g/mol

VQ-011985

Minoxidil, ≥98% chemical structure

Minoxidil, ≥98%

CAS: 38304-91-5
Formula: C₉H₁₅N₅O
MW: 209.25 g/mol

VQ-011986

N-(3-Chloro-4-fluorophenyl)-7-fluoro-6-nitroquinazolin-4-amine chemical structure

N-(3-Chloro-4-fluorophenyl)-7-fluoro-6-nitroquinazolin-4-amine

CAS: 162012-67-1
Formula: C₁₄H₇ClF₂N₄O₂
MW: 336.68 g/mol

VQ-035632

Reference Standard

N4-Acetylcytosine chemical structure

N4-Acetylcytosine

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

In stock

N4-Acetylcytosine, 99% chemical structure

N4-Acetylcytosine, 99%

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

VQ-011988

Orotic acid, monohydrate, 97% chemical structure

Orotic acid, monohydrate, 97%

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

VQ-011989

Oxythiamine chloride hydrochloride, ≥95% (HPLC) chemical structure

Oxythiamine chloride hydrochloride, ≥95% (HPLC)

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

VQ-011990

Phenazine ethosulfate, ≥97% chemical structure

Phenazine ethosulfate, ≥97%

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

VQ-011991

Pyrazinamide, 98% chemical structure

Pyrazinamide, 98%

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

VQ-011992

Pyrazine chemical structure

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

VQ-039204

Pyrazine-2-carboxylic acid, 99% chemical structure

Pyrazine-2-carboxylic acid, 99%

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

VQ-011993

Need a price, a spec or a custom compound?

Send us your list — product names or CAS numbers, grade, quantity and destination. Our team replies with a formal quotation, COA and lead time.

Request a quote Contact sales