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

Amikumacin A

CAS: 78654-44-1
Formula: C₂₀H₂₉N₃O₇
MW: 423.5 g/mol

VQ-040918

Reference Standard

Amiloride Hydrochloride Dihydrate

CAS: 17440-83-4
Formula: C₆H₁₃Cl₂N₇O₃
MW: 302.12 g/mol

VQ-024239

Reference Standard

Aminolevulinic acid

CAS: 106-60-5
Formula: C₅H₉NO₃
MW: 131.13 g/mol

VQ-039884

Reference Standard

Aminomethanol

CAS: 3088-27-5
Formula: CH₅NO
MW: 47.06 g/mol

VQ-040990

Reference Standard

Amiodarone Hydrochloride

CAS: 19774-82-4
Formula: C₂₅H₃₀ClI₂NO₃
MW: 681.8 g/mol

VQ-021550

Reference Standard

Amiphenazole Hydrochloride

CAS: 942-31-4
Formula: C₉H₁₀ClN₃S
MW: 227.71 g/mol

VQ-047387

Reference Standard

Amitraz

CAS: 33089-61-1
Formula: C₁₉H₂₃N₃
MW: 293.4 g/mol

VQ-024246

Reference Standard

Amlodipine Besylate

CAS: 111470-99-6
Formula: C₂₆H₃₁ClN₂O₈S
MW: 567.1 g/mol

In stock

Reference Standard

Amlodipine Maleate

CAS: 88150-47-4
Formula: C₂₄H₂₉ClN₂O₉
MW: 524.9 g/mol

VQ-024252

Reference Standard

Amlodipine Mesilate Monohydrate

CAS: 440358-84-9
Formula: C₂₁H₃₁ClN₂O₉S
MW: 523 g/mol

VQ-047394

Reference Standard

Amlodipine Mesylate

CAS: 246852-12-0
Formula: C₂₁H₂₉ClN₂O₈S
MW: 505 g/mol

VQ-035696

Reference Standard

Amlodipine WS

CAS: 88150-42-9
Formula: C₂₀H₂₅ClN₂O₅
MW: 408.9 g/mol

VQ-007312

Reference Standard

Ammelide

CAS: 645-93-2
Formula: C₃H₄N₄O₂
MW: 128.09 g/mol

VQ-039154

Reference Standard

Amodiaquine

CAS: 86-42-0
Formula: C₂₀H₂₂ClN₃O
MW: 355.9 g/mol

VQ-021565

Reference Standard

Amodiaquine hydrochloride

CAS: 69-44-3
Formula: C₂₀H₂₈Cl₃N₃O₃
MW: 464.8 g/mol

VQ-047397

Reference Standard

Amorolfine Hydrochloride

CAS: 78613-38-4
Formula: C₂₁H₃₆ClNO
MW: 354 g/mol

VQ-024263

Reference Standard

Amoxapine

CAS: 14028-44-5
Formula: C₁₇H₁₆ClN₃O
MW: 313.8 g/mol

VQ-021570

Reference Standard

Amoxicillin Sodium

CAS: 34642-77-8
Formula: C₁₆H₁₈N₃NaO₅S
MW: 387.4 g/mol

VQ-029141

Reference Standard

Amoxicillin Trihydrate

CAS: 61336-70-7
Formula: C₁₆H₂₅N₃O₈S
MW: 419.5 g/mol

VQ-020797

Reference Standard

Amprenavir

CAS: 161814-49-9
Formula: C₂₅H₃₅N₃O₆S
MW: 505.6 g/mol

VQ-035718

Reference Standard

Amprolium Hydrochloride

CAS: 137-88-2
Formula: C₁₄H₂₀Cl₂N₄
MW: 315.2 g/mol

VQ-021588

Reference Standard

Amrubicin

CAS: 110267-81-7
Formula: C₂₅H₂₅NO₉
MW: 483.5 g/mol

VQ-043829

Reference Standard

Amsacrine

CAS: 51264-14-3
Formula: C₂₁H₁₉N₃O₃S
MW: 393.5 g/mol

VQ-024287

Reference Standard

Amtolmetin guacil

CAS: 87344-06-7
Formula: C₂₄H₂₄N₂O₅
MW: 420.5 g/mol

VQ-021589

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API Reference Standards

Need a price, a spec or a custom compound?