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

Octenidine dihydrochloride

CAS: 70775-75-6
Formula: C₃₆H₆₄Cl₂N₄
MW: 623.8 g/mol

VQ-026973

Reference Standard

Octinoxate

CAS: 5466-77-3
Formula: C₁₈H₂₆O₃
MW: 290.4 g/mol

VQ-026974

Reference Standard

Octreotide

CAS: 83150-76-9
Formula: C₄₉H₆₆N₁₀O₁₀S₂
MW: 1019.2 g/mol

VQ-032227

Reference Standard

Octreotide Acetate

CAS: 79517-01-4
Formula: C₅₃H₇₄N₁₀O₁₄S₂
MW: 1139.3 g/mol

VQ-023313

Reference Standard

Octyl Gallate

CAS: 1034-01-1
Formula: C₁₅H₂₂O₅
MW: 282.33 g/mol

VQ-045225

Reference Standard

Odevixibat

CAS: 501692-44-0
Formula: C₃₇H₄₈N₄O₈S₂
MW: 740.9 g/mol

VQ-044764

Reference Standard

Olanzapine Pamoate Hydrate

CAS: 221373-18-8
Formula: C₄₀H₃₈N₄O₇S
MW: 718.8 g/mol

VQ-026985

Reference Standard

Olanzapine WS

CAS: 132539-06-1
Formula: C₁₇H₂₀N₄S
MW: 312.4 g/mol

In stock

Reference Standard

Olaparib

CAS: 763113-22-0
Formula: C₂₄H₂₃FN₄O₃
MW: 434.5 g/mol

In stock

Reference Standard

Olaquindox

CAS: 23696-28-8
Formula: C₁₂H₁₃N₃O₄
MW: 263.25 g/mol

VQ-038735

Reference Standard

Oleandomycin

CAS: 3922-90-5
Formula: C₃₅H₆₁NO₁₂
MW: 687.9 g/mol

VQ-038736

Reference Standard

Olmesartan Medoxomil

CAS: 144689-63-4
Formula: C₂₉H₃₀N₆O₆
MW: 558.6 g/mol

VQ-026987

Reference Standard

Olodaterol

CAS: 868049-49-4
Formula: C₂₁H₂₆N₂O₅
MW: 386.4 g/mol

VQ-034876

Reference Standard

Olodaterol Hydrochloride

CAS: 869477-96-3
Formula: C₂₁H₂₇ClN₂O₅
MW: 422.9 g/mol

VQ-038749

Reference Standard

Olopatadine

CAS: 113806-05-6
Formula: C₂₁H₂₃NO₃
MW: 337.4 g/mol

In stock

Reference Standard

Olopatadine hydrochloride

CAS: 140462-76-6
Formula: C₂₁H₂₄ClNO₃
MW: 373.9 g/mol

VQ-023332

Reference Standard

Olpadronic Acid

CAS: 63132-39-8
Formula: C₅H₁₅NO₇P₂
MW: 263.12 g/mol

VQ-043776

Reference Standard

Olsalazine Sodium Salt

CAS: 6054-98-4
Formula: C₁₄H₈N₂Na₂O₆
MW: 346.2 g/mol

VQ-027006

Reference Standard

Olutasidenib

CAS: 1887014-12-1
Formula: C₁₈H₁₅ClN₄O₂
MW: 354.8 g/mol

VQ-045230

Reference Standard

Omadacycline

CAS: 389139-89-3
Formula: C₂₉H₄₀N₄O₇
MW: 556.6 g/mol

VQ-027010

Reference Standard

Omadacycline Tosylate

CAS: 1075240-43-5
Formula: C₃₆H₄₈N₄O₁₀S
MW: 728.9 g/mol

VQ-032258

Reference Standard

Omarigliptin (MK-3102)

CAS: 1226781-44-7
Formula: C₁₇H₂₀F₂N₄O₃S
MW: 398.4 g/mol

VQ-038757

Reference Standard

Omaveloxolone

CAS: 1474034-05-3
Formula: C₃₃H₄₄F₂N₂O₃
MW: 554.7 g/mol

VQ-032259

Reference Standard

Ombitasvir

CAS: 1258226-87-7
Formula: C₅₀H₆₇N₇O₈
MW: 894.1 g/mol

VQ-038758

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API Reference Standards

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