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

Cefradine Monohydrate

CAS: 75975-70-1
Formula: C₁₆H₂₁N₃O₅S
MW: 367.4 g/mol

VQ-036203

Reference Standard

Cefsulodin

CAS: 62587-73-9
Formula: C₂₂H₂₀N₄O₈S₂
MW: 532.6 g/mol

VQ-036204

Reference Standard

Cefsulodin Sodium

CAS: 52152-93-9
Formula: C₂₂H₁₉N₄NaO₈S₂
MW: 554.5 g/mol

VQ-029708

Reference Standard

Ceftaroline Fosamil

CAS: 229016-73-3
Formula: C₂₂H₂₁N₈O₈PS₄
MW: 684.7 g/mol

VQ-035060

Reference Standard

Ceftaroline fosamil acetate

CAS: 400827-46-5
Formula: C₂₄H₂₅N₈O₁₀PS₄
MW: 744.7 g/mol

VQ-036205

Reference Standard

Ceftazidime Hydrate

CAS: 78439-06-2
Formula: C₂₂H₃₂N₆O₁₂S₂
MW: 636.7 g/mol

VQ-022107

Reference Standard

Cefteram

CAS: 82547-58-8
Formula: C₁₆H₁₇N₉O₅S₂
MW: 479.5 g/mol

VQ-035050

Reference Standard

Ceftezole

CAS: 26973-24-0
Formula: C₁₃H₁₂N₈O₄S₃
MW: 440.5 g/mol

VQ-029714

Reference Standard

Ceftezole Sodium

CAS: 41136-22-5
Formula: C₁₃H₁₁N₈NaO₄S₃
MW: 462.5 g/mol

VQ-047722

Reference Standard

Ceftibuten

CAS: 97519-39-6
Formula: C₁₅H₁₄N₄O₆S₂
MW: 410.4 g/mol

VQ-024875

Reference Standard

Ceftibuten dihydrate

CAS: 118081-34-8
Formula: C₁₅H₁₈N₄O₈S₂
MW: 446.5 g/mol

VQ-036209

Reference Standard

Ceftiofur

CAS: 80370-57-6
Formula: C₁₉H₁₇N₅O₇S₃
MW: 523.6 g/mol

VQ-029715

Reference Standard

Ceftiofur hydrochloride

CAS: 103980-44-5
Formula: C₁₉H₁₈ClN₅O₇S₃
MW: 560 g/mol

VQ-024876

Reference Standard

Ceftiofur Sodium

CAS: 104010-37-9
Formula: C₁₉H₁₆N₅NaO₇S₃
MW: 545.6 g/mol

VQ-043109

Reference Standard

Ceftizoxime

CAS: 68401-81-0
Formula: C₁₃H₁₃N₅O₅S₂
MW: 383.4 g/mol

VQ-036210

Reference Standard

Ceftizoxime Sodium

CAS: 68401-82-1
Formula: C₁₃H₁₂N₅NaO₅S₂
MW: 405.4 g/mol

VQ-024880

Reference Standard

Ceftobiprole

CAS: 209467-52-7
Formula: C₂₀H₂₂N₈O₆S₂
MW: 534.6 g/mol

VQ-024881

Reference Standard

Ceftolozane

CAS: 689293-68-3
Formula: C₂₃H₃₀N₁₂O₈S₂
MW: 666.7 g/mol

VQ-024882

Reference Standard

Ceftriaxone

CAS: 73384-59-5
Formula: C₁₈H₁₈N₈O₇S₃
MW: 554.6 g/mol

VQ-028870

Reference Standard

Cefuroxime Sodium

CAS: 56238-63-2
Formula: C₁₆H₁₅N₄NaO₈S
MW: 446.4 g/mol

VQ-022117

Reference Standard

Celecoxib

CAS: 169590-42-5
Formula: C₁₇H₁₄F₃N₃O₂S
MW: 381.4 g/mol

In stock

Reference Standard

Celiprolol Hydrochloride

CAS: 57470-78-7
Formula: C₂₀H₃₄ClN₃O₄
MW: 416 g/mol

VQ-029726

Reference Standard

Cenobamate

CAS: 913088-80-9
Formula: C₁₀H₁₀ClN₅O₂
MW: 267.67 g/mol

VQ-029727

Reference Standard

Cephalosporin C Zinc

CAS: 59143-60-1
Formula: C₁₆H₁₉N₃O₈SZn
MW: 478.8 g/mol

VQ-036183

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API Reference Standards

Need a price, a spec or a custom compound?