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

LR / Spectroscopy

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

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

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

VQ-046876

Spectroscopy

Riboflavin, for spectroscopy ≥99.00% chemical structure

Riboflavin, for spectroscopy ≥99.00%

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

VQ-046758

Sapropetrin dihydrochloride, 95% chemical structure

Sapropetrin dihydrochloride, 95%

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

VQ-011994

Sodium sulfadiazine, 99% chemical structure

Sodium sulfadiazine, 99%

CAS: 547-32-0
Formula: C₁₀H₉N₄NaO₂S
MW: 272.26 g/mol

VQ-011995

Sulfadiazine, 98% chemical structure

Sulfadiazine, 98%

CAS: 68-35-9
Formula: C₁₀H₁₀N₄O₂S
MW: 250.28 g/mol

VQ-011996

Sulfamerazine, ≥99% chemical structure

Sulfamerazine, ≥99%

CAS: 127-79-7
Formula: C₁₁H₁₂N₄O₂S
MW: 264.31 g/mol

VQ-011997

Sulfamethazine, 99% chemical structure

Sulfamethazine, 99%

CAS: 57-68-1
Formula: C₁₂H₁₄N₄O₂S
MW: 278.33 g/mol

VQ-011998

Sulfisomidine chemical structure

CAS: 515-64-0
Formula: C₁₂H₁₄N₄O₂S
MW: 278.33 g/mol

VQ-041063

Sulpha chloropyrazine sodium chemical structure

Sulpha chloropyrazine sodium

CAS: 23307-72-4
Formula: C₁₀H₈ClN₄NaO₂S
MW: 306.7 g/mol

VQ-039549

tert-Butylpyrazine chemical structure

tert-Butylpyrazine

CAS: 32741-11-0
Formula: C₈H₁₂N₂
MW: 136.19 g/mol

VQ-041032

Tetra-2-pyridinylpyrazine, 97% chemical structure

Tetra-2-pyridinylpyrazine, 97%

CAS: 25005-97-4
Formula: C₂₄H₁₆N₆
MW: 388.4 g/mol

VQ-011999

Tetrahydrofolic acid, ≥65% chemical structure

Tetrahydrofolic acid, ≥65%

CAS: 135-16-0
Formula: C₁₉H₂₃N₇O₆
MW: 445.4 g/mol

VQ-012000

Biochemistry

Thymine, 99%+ chemical structure

CAS: 65-71-4
Formula: C₅H₆N₂O₂
MW: 126.11 g/mol

VQ-012001

Uridine 5′-monophosphate disodium salt, ≥99% chemical structure

Uridine 5′-monophosphate disodium salt, ≥99%

CAS: 3387-36-8
Formula: C₉H₁₁N₂Na₂O₉P
MW: 368.14 g/mol

VQ-012002

EP

Uridine 5′-monophosphate disodium salt, EP chemical structure

Uridine 5′-monophosphate disodium salt, EP

CAS: 3387-36-8
Formula: C₉H₁₁N₂Na₂O₉P
MW: 368.14 g/mol

VQ-047290

Uridine 5′-monophosphate, ≥98% chemical structure

Uridine 5′-monophosphate, ≥98%

CAS: 58-97-9
Formula: C₉H₁₃N₂O₉P
MW: 324.18 g/mol

VQ-012003

Uridine-5'-diphosphate sodium salt (UDP), From yeast chemical structure

Uridine-5'-diphosphate sodium salt (UDP), From yeast

CAS: 27821-45-0
Formula: C₉H₁₂N₂Na₂O₁₂P₂
MW: 448.12 g/mol

VQ-019609

Violuric acid>97% (t), >97% chemical structure

Violuric acid>97% (t), >97%

CAS: 26351-19-9
Formula: C₄H₅N₃O₅
MW: 175.1 g/mol

VQ-019738

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