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

Avanafil

CAS: 330784-47-9
Formula: C₂₃H₂₆ClN₇O₃
MW: 483.9 g/mol

VQ-021681

Reference Standard

Avapritinib

CAS: 1703793-34-3
Formula: C₂₆H₂₇FN₁₀
MW: 498.6 g/mol

VQ-024438

Reference Standard

Avatrombopag

CAS: 570406-98-3
Formula: C₂₉H₃₄Cl₂N₆O₃S₂
MW: 649.7 g/mol

VQ-029296

Reference Standard

Avatrombopag Maleate

CAS: 677007-74-8
Formula: C₃₃H₃₈Cl₂N₆O₇S₂
MW: 765.7 g/mol

VQ-024441

Reference Standard

Avenasterol

CAS: 23290-26-8
Formula: C₂₉H₄₈O
MW: 412.7 g/mol

VQ-035870

Reference Standard

Avibactam

CAS: 1192500-31-4
Formula: C₇H₁₁N₃O₆S
MW: 265.25 g/mol

VQ-029306

Reference Standard

Avibactam Sodium

CAS: 1192491-61-4
Formula: C₇H₁₀N₃NaO₆S
MW: 287.23 g/mol

VQ-024447

Reference Standard

Avilamycin

CAS: 11051-71-1
Formula: C₆₁H₈₈Cl₂O₃₂
MW: 1404.2 g/mol

VQ-029310

Reference Standard

Axitinib WS

CAS: 319460-85-0
Formula: C₂₂H₁₈N₄OS
MW: 386.5 g/mol

In stock

Reference Standard

Azapentacene Sodium Salt

CAS: 3863-80-7
Formula: C₁₈H₁₀N₄Na₂O₆S₂
MW: 488.4 g/mol

VQ-035677

Reference Standard

Azaperone

CAS: 1649-18-9
Formula: C₁₉H₂₂FN₃O
MW: 327.4 g/mol

VQ-043457

Reference Standard

Azathioprine WS

CAS: 446-86-6
Formula: C₉H₇N₇O₂S
MW: 277.27 g/mol

In stock

Reference Standard

Azelastine

CAS: 58581-89-8
Formula: C₂₂H₂₄ClN₃O
MW: 381.9 g/mol

VQ-029325

Reference Standard

Azelastine Hydrochloride

CAS: 79307-93-0
Formula: C₂₂H₂₅Cl₂N₃O
MW: 418.4 g/mol

VQ-021698

Reference Standard

Azelnidipine

CAS: 123524-52-7
Formula: C₃₃H₃₄N₄O₆
MW: 582.6 g/mol

VQ-021706

Reference Standard

Azilisartan Medoximil WS

CAS: 863031-21-4
Formula: C₃₀H₂₄N₄O₈
MW: 568.5 g/mol

VQ-007329

Reference Standard

Azilsartan

CAS: 147403-03-0
Formula: C₂₅H₂₀N₄O₅
MW: 456.4 g/mol

In stock

Reference Standard

Azintamide

CAS: 1830-32-6
Formula: C₁₀H₁₄ClN₃OS
MW: 259.76 g/mol

VQ-047520

Reference Standard

Aziridine

CAS: 151-56-4
Formula: C₂H₅N
MW: 43.07 g/mol

VQ-035899

Reference Standard

Azithromycin dihydrate

CAS: 117772-70-0
Formula: C₃₈H₇₆N₂O₁₄
MW: 785 g/mol

VQ-021717

Reference Standard

Azoxystrobin

CAS: 131860-33-8
Formula: C₂₂H₁₇N₃O₅
MW: 403.4 g/mol

VQ-023354

Reference Standard

Aztreonam

CAS: 78110-38-0
Formula: C₁₃H₁₇N₅O₈S₂
MW: 435.4 g/mol

VQ-024478

Reference Standard

Bacampicillin Hydrochloride

CAS: 37661-08-8
Formula: C₂₁H₂₈ClN₃O₇S
MW: 502 g/mol

VQ-020885

Reference Standard

Baloxavir Marboxil

CAS: 1985606-14-1
Formula: C₂₇H₂₃F₂N₃O₇S
MW: 571.6 g/mol

VQ-021732

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API Reference Standards

Need a price, a spec or a custom compound?