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

Cyclomethicone 5

CAS: 541-02-6
Formula: C₁₀H₃₀O₅Si₅
MW: 370.77 g/mol

VQ-036468

Reference Standard

Cyclooctanol

CAS: 696-71-9
Formula: C₈H₁₆O
MW: 128.21 g/mol

VQ-036469

Reference Standard

Cyclopamine

CAS: 4449-51-8
Formula: C₂₇H₄₁NO₂
MW: 411.6 g/mol

VQ-047885

Reference Standard

Cyclopentanone Oxime

CAS: 1192-28-5
Formula: C₅H₉NO
MW: 99.13 g/mol

VQ-047886

Reference Standard

Cyclopentolate

CAS: 512-15-2
Formula: C₁₇H₂₅NO₃
MW: 291.4 g/mol

VQ-047887

Reference Standard

Cyclopentolate Hydrochloride

CAS: 5870-29-1
Formula: C₁₇H₂₆ClNO₃
MW: 327.8 g/mol

VQ-025109

Reference Standard

Cyclophosphamide

CAS: 50-18-0
Formula: C₇H₁₅Cl₂N₂O₂P
MW: 261.08 g/mol

VQ-007398

Reference Standard

Cyclophosphamide monohydrate

CAS: 6055-19-2
Formula: C₇H₁₇Cl₂N₂O₃P
MW: 279.1 g/mol

In stock

Reference Standard

Cyclosporin A

CAS: 59865-13-3
Formula: C₆₂H₁₁₁N₁₁O₁₂
MW: 1202.6 g/mol

VQ-025117

Reference Standard

Cyclosporin A Acetate

CAS: 83602-41-9
Formula: C₆₄H₁₁₃N₁₁O₁₃
MW: 1244.7 g/mol

VQ-036477

Reference Standard

Cycrimine Hydrochloride

CAS: 126-02-3
Formula: C₁₉H₃₀ClNO
MW: 323.9 g/mol

VQ-047898

Reference Standard

Cyflumetofen

CAS: 400882-07-7
Formula: C₂₄H₂₄F₃NO₄
MW: 447.4 g/mol

VQ-036479

Reference Standard

Cyfluthrin

CAS: 68359-37-5
Formula: C₂₂H₁₈Cl₂FNO₃
MW: 434.3 g/mol

VQ-038905

Reference Standard

Cyhalothrin

CAS: 68085-85-8
Formula: C₂₃H₁₉ClF₃NO₃
MW: 449.8 g/mol

VQ-039705

Reference Standard

Cymoxanil

CAS: 57966-95-7
Formula: C₇H₁₀N₄O₃
MW: 198.18 g/mol

VQ-029964

Reference Standard

Cyphenothrin

CAS: 39515-40-7
Formula: C₂₄H₂₅NO₃
MW: 375.5 g/mol

VQ-032510

Reference Standard

Cyproconazole

CAS: 94361-06-5
Formula: C₁₅H₁₈ClN₃O
MW: 291.77 g/mol

VQ-029965

Reference Standard

Cyprodinil

CAS: 121552-61-2
Formula: C₁₄H₁₅N₃
MW: 225.29 g/mol

VQ-032326

Reference Standard

Cyproflanilide

CAS: 2375110-88-4
Formula: C₂₈H₁₇BrF₁₂N₂O₂
MW: 721.3 g/mol

VQ-045209

Reference Standard

Cyproheptadine hydrochloride

CAS: 969-33-5
Formula: C₂₁H₂₂ClN
MW: 323.9 g/mol

VQ-029967

Reference Standard

Cyproterone Acetate

CAS: 427-51-0
Formula: C₂₄H₂₉ClO₄
MW: 416.9 g/mol

VQ-022280

Reference Standard

Cysteamine

CAS: 60-23-1
Formula: C₂H₇NS
MW: 77.15 g/mol

VQ-025137

Reference Standard

Cysteamine bitartrate

CAS: 27761-19-9
Formula: C₆H₁₃NO₆S
MW: 227.24 g/mol

VQ-029968

Reference Standard

Cysteine

CAS: 52-90-4
Formula: C₃H₇NO₂S
MW: 121.16 g/mol

VQ-007400

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API Reference Standards

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