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

Ioversol

CAS: 87771-40-2
Formula: C₁₈H₂₄I₃N₃O₉
MW: 807.1 g/mol

VQ-026198

Reference Standard

Ioxaglic Acid

CAS: 59017-64-0
Formula: C₂₄H₂₁I₆N₅O₈
MW: 1268.9 g/mol

VQ-043546

Reference Standard

Ioxitalamic Acid

CAS: 28179-44-4
Formula: C₁₂H₁₁I₃N₂O₅
MW: 643.94 g/mol

VQ-037721

Reference Standard

Ipamorelin

CAS: 170851-70-4
Formula: C₃₈H₄₉N₉O₅
MW: 711.9 g/mol

VQ-031229

Reference Standard

Ipidacrine

CAS: 62732-44-9
Formula: C₁₂H₁₆N₂
MW: 188.27 g/mol

VQ-048696

Reference Standard

Ipidacrine Hydrochloride Hydrate

CAS: 118499-70-0
Formula: C₁₂H₁₉ClN₂O
MW: 242.74 g/mol

VQ-026199

Reference Standard

Ipragliflozin

CAS: 761423-87-4
Formula: C₂₁H₂₁FO₅S
MW: 404.5 g/mol

VQ-026200

Reference Standard

Ipratropium Bromide Monohydrate

CAS: 66985-17-9
Formula: C₂₀H₃₂BrNO₄
MW: 430.4 g/mol

VQ-034852

Reference Standard

Iprobenfos

CAS: 26087-47-8
Formula: C₁₃H₂₁O₃PS
MW: 288.34 g/mol

VQ-037726

Reference Standard

Iproniazid

CAS: 54-92-2
Formula: C₉H₁₃N₃O
MW: 179.22 g/mol

VQ-048699

Reference Standard

Iproniazid Phosphate

CAS: 305-33-9
Formula: C₉H₁₆N₃O₅P
MW: 277.21 g/mol

VQ-037727

Reference Standard

Ipronidazole

CAS: 14885-29-1
Formula: C₇H₁₁N₃O₂
MW: 169.18 g/mol

VQ-037728

Reference Standard

Iptacopan

CAS: 1644670-37-0
Formula: C₂₅H₃₀N₂O₄
MW: 422.5 g/mol

In stock

Reference Standard

Iptacopan Hydrochloride

CAS: 1646321-63-2
Formula: C₂₅H₃₁ClN₂O₄
MW: 459 g/mol

In stock

Reference Standard

Irbesartan

CAS: 138402-11-6
Formula: C₂₅H₂₈N₆O
MW: 428.5 g/mol

VQ-022858

Reference Standard

Irganox 245

CAS: 36443-68-2
Formula: C₃₄H₅₀O₈
MW: 586.8 g/mol

VQ-039375

Reference Standard

Irsogladine Maleate

CAS: 84504-69-8
Formula: C₁₃H₁₁Cl₂N₅O₄
MW: 372.16 g/mol

VQ-048704

Reference Standard

Isavuconazole

CAS: 241479-67-4
Formula: C₂₂H₁₇F₂N₅OS
MW: 437.5 g/mol

VQ-031244

Reference Standard

Iscotrizinol

CAS: 154702-15-5
Formula: C₄₄H₅₉N₇O₅
MW: 766 g/mol

VQ-031252

Reference Standard

Isepamicin sulfate

CAS: 67814-76-0
Formula: C₂₂H₄₅N₅O₁₆S
MW: 667.7 g/mol

VQ-037745

Reference Standard

Isoamyl Benzoate

CAS: 94-46-2
Formula: C₁₂H₁₆O₂
MW: 192.25 g/mol

VQ-039005

Reference Standard

Isocarboxazid

CAS: 59-63-2
Formula: C₁₂H₁₃N₃O₂
MW: 231.25 g/mol

VQ-031253

Reference Standard

Isochroman

CAS: 493-05-0
Formula: C₉H₁₀O
MW: 134.17 g/mol

In stock

Reference Standard

Isoconazole

CAS: 27523-40-6
Formula: C₁₈H₁₄Cl₄N₂O
MW: 416.1 g/mol

VQ-026232

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API Reference Standards

Need a price, a spec or a custom compound?