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

Amylocaine Hydrochloride

CAS: 532-59-2
Formula: C₁₄H₂₂ClNO₂
MW: 271.78 g/mol

VQ-035721

Reference Standard

Anagliptin

CAS: 739366-20-2
Formula: C₁₉H₂₅N₇O₂
MW: 383.4 g/mol

VQ-035722

Reference Standard

Anagrelide

CAS: 68475-42-3
Formula: C₁₀H₇Cl₂N₃O
MW: 256.08 g/mol

VQ-024295

Reference Standard

Anagrelide Hydrochloride

CAS: 58579-51-4
Formula: C₁₀H₈Cl₃N₃O
MW: 292.5 g/mol

VQ-029157

Reference Standard

Anagrelide Hydrochloride Monohydrate

CAS: 823178-43-4
Formula: C₁₀H₁₀Cl₃N₃O₂
MW: 310.6 g/mol

VQ-035724

Reference Standard

Anagyrine

CAS: 486-89-5
Formula: C₁₅H₂₀N₂O
MW: 244.33 g/mol

VQ-032867

Reference Standard

Anastrozole WS

CAS: 120511-73-1
Formula: C₁₇H₁₉N₅
MW: 293.4 g/mol

In stock

Reference Standard

Androstenediol

CAS: 521-17-5
Formula: C₁₉H₃₀O₂
MW: 290.4 g/mol

In stock

Reference Standard

Androstenone

CAS: 18339-16-7
Formula: C₁₉H₂₈O
MW: 272.4 g/mol

VQ-047405

Reference Standard

Anhydrous chlorobutanol

CAS: 57-15-8
Formula: C₄H₇Cl₃O
MW: 177.45 g/mol

VQ-007315

Reference Standard

Anidulafungin

CAS: 166663-25-8
Formula: C₅₈H₇₃N₇O₁₇
MW: 1140.2 g/mol

VQ-021599

Reference Standard

Aniracetam

CAS: 72432-10-1
Formula: C₁₂H₁₃NO₃
MW: 219.24 g/mol

VQ-029169

Reference Standard

Anlotinib

CAS: 1058156-90-3
Formula: C₂₃H₂₂FN₃O₃
MW: 407.4 g/mol

In stock

Reference Standard

Annonacin

CAS: 111035-65-5
Formula: C₃₅H₆₄O₇
MW: 596.9 g/mol

VQ-039021

Reference Standard

Antazoline

CAS: 91-75-8
Formula: C₁₇H₁₉N₃
MW: 265.35 g/mol

VQ-047409

Reference Standard

Antazoline Hydrochloride

CAS: 2508-72-7
Formula: C₁₇H₂₀ClN₃
MW: 301.8 g/mol

VQ-020810

Reference Standard

Antazoline Phosphate

CAS: 154-68-7
Formula: C₁₇H₂₂N₃O₄P
MW: 363.3 g/mol

VQ-035746

Reference Standard

Antazoline sulfate

CAS: 24359-81-7
Formula: C₁₇H₂₁N₃O₄S
MW: 363.4 g/mol

VQ-035747

Reference Standard

Antheraxanthin

CAS: 640-03-9
Formula: C₄₀H₅₆O₃
MW: 584.9 g/mol

VQ-047410

Reference Standard

Antroquinonol

CAS: 1010081-09-0
Formula: C₂₄H₃₈O₄
MW: 390.6 g/mol

VQ-040476

Reference Standard

Apalutamide WS

CAS: 956104-40-8
Formula: C₂₁H₁₅F₄N₅O₂S
MW: 477.4 g/mol

In stock

Reference Standard

Apatinib

CAS: 811803-05-1
Formula: C₂₄H₂₃N₅O
MW: 397.5 g/mol

VQ-024312

Reference Standard

Apixaban

CAS: 503612-47-3
Formula: C₂₅H₂₅N₅O₄
MW: 459.5 g/mol

In stock

Reference Standard

Apraclonidine Hydrochloride

CAS: 73218-79-8
Formula: C₉H₁₁Cl₃N₄
MW: 281.6 g/mol

VQ-024330

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API Reference Standards

Need a price, a spec or a custom compound?