How many api reference standards do you supply?

We currently list 583 api reference standards, such as Digoxin, Doxepin, Estriol. We can also source or custom-synthesise items that are not listed.

Do api reference standards come with a COA and SDS?

Yes. Each lot is supplied with a batch Certificate of Analysis and a 16-section GHS Safety Data Sheet. Typical COAs can be shared before you order.

Can you export api reference standards to my country?

Yes. We ship worldwide by sea freight, air cargo and express courier, with export documentation, and pack hazardous materials to IATA/IMDG dangerous-goods rules.

Impurities & Reference Standards

API Reference Standards

583 api reference standards with CAS numbers, structures and specifications — batch COA and GHS SDS supplied.

3,436products

377in stock

COA + SDSwith every lot

Reference Standard

Articaine Hydrochloride

CAS: 23964-57-0
Formula: C₁₃H₂₁ClN₂O₃S
MW: 320.84 g/mol

VQ-021626

Reference Standard

Asciminib

CAS: 1492952-76-7
Formula: C₂₀H₁₈ClF₂N₅O₃
MW: 449.8 g/mol

In stock

Reference Standard

Asenapine

CAS: 65576-45-6
Formula: C₁₇H₁₆ClNO
MW: 285.8 g/mol

VQ-007325

Reference Standard

Asiaticoside

CAS: 16830-15-2
Formula: C₄₈H₇₈O₁₉
MW: 959.1 g/mol

VQ-024375

Reference Standard

Astemizole

CAS: 68844-77-9
Formula: C₂₈H₃₁FN₄O
MW: 458.6 g/mol

VQ-034785

Reference Standard

Ataluren

CAS: 775304-57-9
Formula: C₁₅H₉FN₂O₃
MW: 284.24 g/mol

VQ-029230

Reference Standard

Atazanavir

CAS: 198904-31-3
Formula: C₃₈H₅₂N₆O₇
MW: 704.9 g/mol

VQ-024379

Reference Standard

Atazanavir sulfate

CAS: 229975-97-7
Formula: C₃₈H₅₄N₆O₁₁S
MW: 802.9 g/mol

VQ-021632

Reference Standard

Atipamezole Hydrochloride

CAS: 104075-48-1
Formula: C₁₄H₁₇ClN₂
MW: 248.75 g/mol

VQ-024389

Reference Standard

Atogepant

CAS: 1374248-81-3
Formula: C₂₉H₂₃F₆N₅O₃
MW: 603.5 g/mol

VQ-024390

Reference Standard

Atomoxetine

CAS: 83015-26-3
Formula: C₁₇H₂₁NO
MW: 255.35 g/mol

VQ-029247

Reference Standard

Atomoxetine

CAS: 331731-18-1
Formula: C₁₇H₂₁NO
MW: 255.35 g/mol

VQ-047335

Reference Standard

Atomoxetine Hydrochloride

CAS: 82248-59-7
Formula: C₁₇H₂₂ClNO
MW: 291.8 g/mol

VQ-020848

Reference Standard

Atorvastatin

CAS: 134523-00-5
Formula: C₃₃H₃₅FN₂O₅
MW: 558.6 g/mol

VQ-007326

Reference Standard

Atorvastatin Calcium Trihydrate

CAS: 344423-98-9
Formula: C₆₆H₇₄CaF₂N₄O₁₃
MW: 1209.4 g/mol

VQ-024399

Reference Standard

Atosiban

CAS: 90779-69-4
Formula: C₄₃H₆₇N₁₁O₁₂S₂
MW: 994.2 g/mol

VQ-043053

Reference Standard

Atosiban Acetate

CAS: 914453-95-5
Formula: C₄₅H₇₁N₁₁O₁₄S₂
MW: 1054.2 g/mol

VQ-029264

Reference Standard

Atovaquone

CAS: 95233-18-4
Formula: C₂₂H₁₉ClO₃
MW: 366.8 g/mol

VQ-028812

Reference Standard

Atracurium besylate

CAS: 64228-81-5
Formula: C₆₅H₈₂N₂O₁₈S₂
MW: 1243.5 g/mol

VQ-029268

Reference Standard

Atrasentan

CAS: 173937-91-2
Formula: C₂₉H₃₈N₂O₆
MW: 510.6 g/mol

VQ-035851

Reference Standard

Atropine Sulphate

CAS: 55-48-1
Formula: C₃₄H₄₈N₂O₁₀S
MW: 676.8 g/mol

VQ-029284

Reference Standard

Aucubin

CAS: 479-98-1
Formula: C₁₅H₂₂O₉
MW: 346.33 g/mol

VQ-035860

Reference Standard

Auristatin F

CAS: 163768-50-1
Formula: C₄₀H₆₇N₅O₈
MW: 746 g/mol

VQ-045131

Reference Standard

Avacopan

CAS: 1346623-17-3
Formula: C₃₃H₃₅F₄N₃O₂
MW: 581.6 g/mol

VQ-029287

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API Reference Standards

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