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

Ebastine

CAS: 90729-43-4
Formula: C₃₂H₃₉NO₂
MW: 469.7 g/mol

VQ-022472

Reference Standard

Eberconazole

CAS: 128326-82-9
Formula: C₁₈H₁₄Cl₂N₂
MW: 329.2 g/mol

VQ-025460

Reference Standard

Eberconazole Nitrate

CAS: 130104-32-4
Formula: C₁₈H₁₅Cl₂N₃O₃
MW: 392.2 g/mol

VQ-036868

Reference Standard

Ecamsule

CAS: 92761-26-7
Formula: C₂₈H₃₄O₈S₂
MW: 562.7 g/mol

VQ-030351

Reference Standard

Echinacoside

CAS: 82854-37-3
Formula: C₃₅H₄₆O₂₀
MW: 786.7 g/mol

VQ-039337

Reference Standard

Echinocandin B

CAS: 54651-05-7
Formula: C₅₂H₈₁N₇O₁₆
MW: 1060.2 g/mol

VQ-034782

Reference Standard

Econazole

CAS: 27220-47-9
Formula: C₁₈H₁₅Cl₃N₂O
MW: 381.7 g/mol

VQ-022478

Reference Standard

Edaravone

CAS: 89-25-8
Formula: C₁₀H₁₀N₂O
MW: 174.2 g/mol

In stock

Reference Standard

Edaravone Sulfate

CAS: 76407-98-2
Formula: C₁₀H₁₀N₂O₄S
MW: 254.26 g/mol

VQ-048120

Reference Standard

Edetate Calcium Disodium Dihydrate

CAS: 6766-87-6
Formula: C₁₀H₁₆CaN₂Na₂O₁₀
MW: 410.3 g/mol

VQ-039215

Reference Standard

Edifenphos

CAS: 17109-49-8
Formula: C₁₄H₁₅O₂PS₂
MW: 310.4 g/mol

VQ-039521

Reference Standard

Edoxaban

CAS: 480449-70-5
Formula: C₂₄H₃₀ClN₇O₄S
MW: 548.1 g/mol

VQ-007445

Reference Standard

Edoxaban Oxalate Hydrate

CAS: 1353893-26-1
Formula: C₁₄H₂₇N₃O₃.C₂H₂O₄.H₂O
MW: 393.43 g/mol

VQ-048122

Reference Standard

Edoxaban Tosylate

CAS: 480449-71-6
Formula: C₃₁H₃₈ClN₇O₇S₂
MW: 720.3 g/mol

In stock

Reference Standard

Edoxaban Tosylate Monohydrate

CAS: 1229194-11-9
Formula: C₃₁H₄₀ClN₇O₈S₂
MW: 738.3 g/mol

VQ-007447

Reference Standard

Edrophonium Chloride

CAS: 116-38-1
Formula: C₁₀H₁₆ClNO
MW: 201.69 g/mol

VQ-030385

Reference Standard

Efavirenz

CAS: 154598-52-4
Formula: C₁₄H₉ClF₃NO₂
MW: 315.67 g/mol

VQ-030386

Reference Standard

Efinaconazole

CAS: 164650-44-6
Formula: C₁₈H₂₂F₂N₄O
MW: 348.4 g/mol

VQ-025487

Reference Standard

Eflornithine Hydrochloride

CAS: 68278-23-9
Formula: C₆H₁₃ClF₂N₂O₂
MW: 218.63 g/mol

VQ-036910

Reference Standard

Eflornithine Hydrochloride Monohydrate

CAS: 96020-91-6
Formula: C₆H₁₅ClF₂N₂O₃
MW: 236.64 g/mol

VQ-048154

Reference Standard

Efonidipine Hydrochloride Monoethanolate

CAS: 111011-76-8
Formula: C₃₄H₃₉ClN₃O₇P
MW: 668.1 g/mol

VQ-048156

Reference Standard

Eicosapentaenoic Acid

CAS: 10417-94-4
Formula: C₂₀H₃₀O₂
MW: 302.5 g/mol

VQ-036911

Reference Standard

Elacestrant

CAS: 722533-56-4
Formula: C₃₀H₃₈N₂O₂
MW: 458.6 g/mol

VQ-030405

Reference Standard

Elacestrant Dihydrochloride

CAS: 1349723-93-8
Formula: C₃₀H₄₀Cl₂N₂O₂
MW: 531.6 g/mol

VQ-030406

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API Reference Standards

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