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

Benfluralin

CAS: 1861-40-1
Formula: C₁₃H₁₆F₃N₃O₄
MW: 335.28 g/mol

VQ-035930

Reference Standard

Benidipine

CAS: 105979-17-7
Formula: C₂₈H₃₁N₃O₆
MW: 505.6 g/mol

VQ-024532

Reference Standard

Benoxinate Hydrochloride

CAS: 5987-82-6
Formula: C₁₇H₂₉ClN₂O₃
MW: 344.9 g/mol

VQ-027334

Reference Standard

Benperidol

CAS: 2062-84-2
Formula: C₂₂H₂₄FN₃O₂
MW: 381.4 g/mol

In stock

Reference Standard

Benproperine Phosphate

CAS: 19428-14-9
Formula: C₂₁H₃₀NO₅P
MW: 407.4 g/mol

VQ-029387

Reference Standard

Benserazide Hydrochloride

CAS: 14919-77-8
Formula: C₁₀H₁₆ClN₃O₅
MW: 293.7 g/mol

VQ-021767

Reference Standard

Benzatropine

CAS: 86-13-5
Formula: C₂₁H₂₅NO
MW: 307.4 g/mol

VQ-021780

Reference Standard

Benzbromarone

CAS: 3562-84-3
Formula: C₁₇H₁₂Br₂O₃
MW: 424.1 g/mol

VQ-021771

Reference Standard

Benzenesulfonic Acid

CAS: 98-11-3
Formula: C₆H₆O₃S
MW: 158.18 g/mol

In stock

Reference Standard

Benzgalantamine Gluconate

CAS: 1542321-58-3
Formula: C₃₀H₃₇NO₁₁
MW: 587.6 g/mol

VQ-048503

Reference Standard

Benzhydrylamine

CAS: 91-00-9
Formula: C₁₃H₁₃N
MW: 183.25 g/mol

VQ-035936

Reference Standard

Benznidazole

CAS: 22994-85-0
Formula: C₁₂H₁₂N₄O₃
MW: 260.25 g/mol

VQ-047554

Reference Standard

Benzocaine WS

CAS: 94-09-7
Formula: C₉H₁₁NO₂
MW: 165.19 g/mol

In stock

Reference Standard

Benzoestrol

CAS: 85-95-0
Formula: C₂₀H₂₆O₂
MW: 298.4 g/mol

VQ-035939

Reference Standard

Benzonatate

CAS: 104-31-4
Formula: C₃₀H₅₃NO₁₁
MW: 603.7 g/mol

VQ-024553

Reference Standard

Benzothiazine

CAS: 3080-99-7
Formula: C₈H₉NS
MW: 151.23 g/mol

VQ-047556

Reference Standard

Benzoxonium Chloride

CAS: 19379-90-9
Formula: C₂₃H₄₂ClNO₂
MW: 400 g/mol

VQ-021782

Reference Standard

Benzthiazide

CAS: 91-33-8
Formula: C₁₅H₁₄ClN₃O₄S₃
MW: 431.9 g/mol

VQ-038966

Reference Standard

Benzydamine Hydrochloride

CAS: 132-69-4
Formula: C₁₉H₂₄ClN₃O
MW: 345.9 g/mol

VQ-024557

Reference Standard

Benzyl Vinyl Ether

CAS: 935-04-6
Formula: C₉H₁₀O
MW: 134.17 g/mol

VQ-007344

Reference Standard

Bepotastine

CAS: 125602-71-3
Formula: C₂₁H₂₅ClN₂O₃
MW: 388.9 g/mol

VQ-021789

Reference Standard

Bepotastine Besilate

CAS: 190786-44-8
Formula: C₂₇H₃₁ClN₂O₆S
MW: 547.1 g/mol

VQ-021788

Reference Standard

Bepotastine Salicylate

CAS: 1206695-40-0
Formula: C₂₈H₃₁ClN₂O₆
MW: 527 g/mol

VQ-047558

Reference Standard

Beraprost

CAS: 218432-32-7
Formula: C₂₄H₃₀O₅
MW: 398.5 g/mol

VQ-045458

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API Reference Standards

Need a price, a spec or a custom compound?