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

Carteolol Hydrochloride

CAS: 51781-21-6
Formula: C₁₆H₂₅ClN₂O₃
MW: 328.83 g/mol

VQ-022034

Reference Standard

Carvedilol Phosphate

CAS: 374779-45-0
Formula: C₂₄H₂₉N₂O₈P
MW: 504.5 g/mol

In stock

Reference Standard

Carvedilol Phosphate Hydrate

CAS: 610309-89-2
Formula: C₄₈H₆₀N₄O₁₇P₂
MW: 1027 g/mol

VQ-007379

Reference Standard

Carvedilol WS

CAS: 72956-09-3
Formula: C₂₄H₂₆N₂O₄
MW: 406.5 g/mol

In stock

Reference Standard

Carvone

CAS: 99-49-0
Formula: C₁₀H₁₄O
MW: 150.22 g/mol

VQ-027083

Reference Standard

Caryophyllene oxide

CAS: 1139-30-6
Formula: C₁₅H₂₄O
MW: 220.35 g/mol

VQ-027218

Reference Standard

Caspofungin

CAS: 162808-62-0
Formula: C₅₂H₈₈N₁₀O₁₅
MW: 1093.3 g/mol

VQ-007381

Reference Standard

Casticin

CAS: 479-91-4
Formula: C₁₉H₁₈O₈
MW: 374.3 g/mol

VQ-040598

Reference Standard

Catharanthine

CAS: 2468-21-5
Formula: C₂₁H₂₄N₂O₂
MW: 336.4 g/mol

VQ-023418

Reference Standard

Cebranopadol

CAS: 863513-91-1
Formula: C₂₄H₂₇FN₂O
MW: 378.5 g/mol

VQ-024827

Reference Standard

Cedazuridine

CAS: 1141397-80-9
Formula: C₉H₁₄F₂N₂O₅
MW: 268.21 g/mol

VQ-028939

Reference Standard

Cefacetrile

CAS: 10206-21-0
Formula: C₁₃H₁₃N₃O₆S
MW: 339.33 g/mol

VQ-024828

Reference Standard

Cefaclor

CAS: 53994-73-3
Formula: C₁₅H₁₄ClN₃O₄S
MW: 367.8 g/mol

VQ-029676

Reference Standard

Cefaclor Monohydrate

CAS: 70356-03-5
Formula: C₁₅H₁₆ClN₃O₅S
MW: 385.8 g/mol

VQ-022048

Reference Standard

Cefadroxil

CAS: 50370-12-2
Formula: C₁₆H₁₇N₃O₅S
MW: 363.4 g/mol

VQ-024831

Reference Standard

Cefadroxil Monohydrate

CAS: 66592-87-8
Formula: C₁₆H₁₉N₃O₆S
MW: 381.4 g/mol

VQ-019500

Reference Standard

Cefalonium

CAS: 5575-21-3
Formula: C₂₀H₁₈N₄O₅S₂
MW: 458.5 g/mol

VQ-029677

Reference Standard

Cefalonium Hydrate

CAS: 1486466-27-6
Formula: C₂₀H₂₀N₄O₆S₂
MW: 476.5 g/mol

VQ-047705

Reference Standard

Cefamandole

CAS: 34444-01-4
Formula: C₁₈H₁₈N₆O₅S₂
MW: 462.5 g/mol

VQ-047706

Reference Standard

Cefamandole Nafate

CAS: 42540-40-9
Formula: C₁₉H₁₇N₆NaO₆S₂
MW: 512.5 g/mol

VQ-036185

Reference Standard

Cefazedone

CAS: 56187-47-4
Formula: C₁₈H₁₅Cl₂N₅O₅S₃
MW: 548.4 g/mol

VQ-035074

Reference Standard

Cefazolin Sodium

CAS: 27164-46-1
Formula: C₁₄H₁₃N₈NaO₄S₃
MW: 476.5 g/mol

VQ-022061

Reference Standard

Cefazolin sodium pentahydrate

CAS: 115850-11-8
Formula: C₁₄H₂₃N₈NaO₉S₃
MW: 566.6 g/mol

VQ-036189

Reference Standard

Cefcapene Pivoxil Hydrochloride Hydrate

CAS: 147816-24-8
Formula: C₂₃H₃₂ClN₅O₉S₂
MW: 622.1 g/mol

VQ-047709

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API Reference Standards

Need a price, a spec or a custom compound?