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

Betrixaban Maleate

CAS: 936539-80-9
Formula: C₂₇H₂₆ClN₅O₇
MW: 568 g/mol

VQ-047574

Reference Standard

Bevacizumab

CAS: 216974-75-3

VQ-047575

Reference Standard

Bexagliflozin

CAS: 1118567-05-7
Formula: C₂₄H₂₉ClO₇
MW: 464.9 g/mol

VQ-021816

Reference Standard

Bexarotene

CAS: 153559-49-0
Formula: C₂₄H₂₈O₂
MW: 348.5 g/mol

VQ-021818

Reference Standard

Bezafibrate

CAS: 41859-67-0
Formula: C₁₉H₂₀ClNO₄
MW: 361.8 g/mol

VQ-020921

Reference Standard

Biapenem

CAS: 120410-24-4
Formula: C₁₅H₁₈N₄O₄S
MW: 350.4 g/mol

VQ-024576

Reference Standard

Bibrocathol

CAS: 6915-57-7
Formula: C₆HBiBr₄O₃
MW: 649.67 g/mol

VQ-043777

Reference Standard

Bicalutamide WS

CAS: 90357-06-5
Formula: C₁₈H₁₄F₄N₂O₄S
MW: 430.4 g/mol

In stock

Reference Standard

Bictegravir

CAS: 1611493-60-7
Formula: C₂₁H₁₈F₃N₃O₅
MW: 449.4 g/mol

VQ-021829

Reference Standard

Bictegravir sodium

CAS: 1807988-02-8
Formula: C₂₁H₁₇F₃N₃NaO₅
MW: 471.4 g/mol

VQ-024578

Reference Standard

Bifendate

CAS: 73536-69-3
Formula: C₂₀H₁₈O₁₀
MW: 418.3 g/mol

VQ-035963

Reference Standard

Bifenthrin

CAS: 82657-04-3
Formula: C₂₃H₂₂ClF₃O₂
MW: 422.9 g/mol

VQ-027095

Reference Standard

Bifonazole

CAS: 60628-96-8
Formula: C₂₂H₁₈N₂
MW: 310.4 g/mol

VQ-020958

Reference Standard

Bilastine

CAS: 202189-78-4
Formula: C₂₈H₃₇N₃O₃
MW: 463.6 g/mol

In stock

Reference Standard

Bimatoprost

CAS: 155206-00-1
Formula: C₂₅H₃₇NO₄
MW: 415.6 g/mol

VQ-007347

Reference Standard

Binimetinib WS

CAS: 606143-89-9
Formula: C₁₇H₁₅BrF₂N₄O₃
MW: 441.2 g/mol

VQ-007348

Reference Standard

Biperiden

CAS: 514-65-8
Formula: C₂₁H₂₉NO
MW: 311.5 g/mol

VQ-043458

Reference Standard

Bis(7-methyloctyl) cyclohexane-1,2-dicarboxylate

CAS: 166412-78-8
Formula: C₂₆H₄₈O₄
MW: 424.7 g/mol

VQ-040037

Reference Standard

Bisacodyl

CAS: 603-50-9
Formula: C₂₂H₁₉NO₄
MW: 361.4 g/mol

In stock

Reference Standard

Bismerthiazol

CAS: 79319-85-0
Formula: C₅H₆N₆S₄
MW: 278.4 g/mol

VQ-040597

Reference Standard

Bismuth Sodium Tartrate

CAS: 31586-77-3
Formula: C₄H₂BiNaO₆
MW: 378.02 g/mol

VQ-039554

Reference Standard

Bisoctrizole

CAS: 103597-45-1
Formula: C₄₁H₅₀N₆O₂
MW: 658.9 g/mol

VQ-021846

Reference Standard

Bisoprolol

CAS: 66722-44-9
Formula: C₁₈H₃₁NO₄
MW: 325.4 g/mol

In stock

Reference Standard

Bivalirudin

CAS: 128270-60-0
Formula: C₉₈H₁₃₈N₂₄O₃₃
MW: 2180.3 g/mol

VQ-043071

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API Reference Standards

Need a price, a spec or a custom compound?