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

Choline Salicylate

CAS: 2016-36-6
Formula: C₁₂H₁₉NO₄
MW: 241.28 g/mol

VQ-032882

Reference Standard

Chondroitin Sulfate Sodium Salt

CAS: 9082-07-9
Formula: (C₁₄H₁₉NO₁₄SNa₂) n

VQ-036287

Reference Standard

Chrysene

CAS: 218-01-9
Formula: C₁₈H₁₂
MW: 228.3 g/mol

VQ-038845

Reference Standard

Cibenzoline

CAS: 53267-01-9
Formula: C₁₈H₁₈N₂
MW: 262.3 g/mol

VQ-043793

Reference Standard

Ciclesonide

CAS: 126544-47-6
Formula: C₃₂H₄₄O₇
MW: 540.7 g/mol

VQ-022167

Reference Standard

Ciclopirox

CAS: 29342-05-0
Formula: C₁₂H₁₇NO₂
MW: 207.27 g/mol

VQ-024962

Reference Standard

Cidofovir

CAS: 113852-37-2
Formula: C₈H₁₄N₃O₆P
MW: 279.19 g/mol

VQ-036292

Reference Standard

Cidofovir Dihydrate

CAS: 149394-66-1
Formula: C₈H₁₈N₃O₈P
MW: 315.22 g/mol

VQ-024963

Reference Standard

Cilastatin

CAS: 82009-34-5
Formula: C₁₆H₂₆N₂O₅S
MW: 358.5 g/mol

VQ-022173

Reference Standard

Cilastatin sodium

CAS: 81129-83-1
Formula: C₁₆H₂₅N₂NaO₅S
MW: 380.4 g/mol

VQ-024964

Reference Standard

Cilazapril

CAS: 88768-40-5
Formula: C₂₂H₃₁N₃O₅
MW: 417.5 g/mol

VQ-029790

Reference Standard

Cilazapril monohydrate

CAS: 92077-78-6
Formula: C₂₂H₃₃N₃O₆
MW: 435.5 g/mol

VQ-047783

Reference Standard

Cilostazol

CAS: 73963-72-1
Formula: C₂₀H₂₇N₅O₂
MW: 369.5 g/mol

VQ-024967

Reference Standard

Cimaterol

CAS: 54239-37-1
Formula: C₁₂H₁₇N₃O
MW: 219.28 g/mol

VQ-024968

Reference Standard

Cimbuterol

CAS: 54239-39-3
Formula: C₁₃H₁₉N₃O
MW: 233.31 g/mol

VQ-029795

Reference Standard

Cimetidine Hydrochloride

CAS: 70059-30-2
Formula: C₁₀H₁₇ClN₆S
MW: 288.8 g/mol

VQ-043115

Reference Standard

Cinacalcet

CAS: 226256-56-0
Formula: C₂₂H₂₂F₃N
MW: 357.4 g/mol

VQ-007390

Reference Standard

Cinacalcet Hydrochloride

CAS: 364782-34-3
Formula: C₂₂H₂₃ClF₃N
MW: 393.9 g/mol

In stock

Reference Standard

Cinaciguat Hydrochloride

CAS: 646995-35-9
Formula: C₃₆H₄₀ClNO₅
MW: 602.2 g/mol

VQ-040628

Reference Standard

Cinerin 1

CAS: 25402-06-6
Formula: C₂₀H₂₈O₃
MW: 316.4 g/mol

VQ-040951

Reference Standard

Cinitapride Hydrogen Tartrate

CAS: 96623-56-2
Formula: C₂₅H₃₆N₄O₁₀
MW: 552.6 g/mol

VQ-024989

Reference Standard

Cinitapride Tartrate

CAS: 1207859-16-2
Formula: C₂₅H₃₆N₄O₁₀
MW: 552.6 g/mol

VQ-047796

Reference Standard

Ciprofibrate

CAS: 52214-84-3
Formula: C₁₃H₁₄Cl₂O₃
MW: 289.15 g/mol

VQ-022191

Reference Standard

Ciprofloxacin

CAS: 85721-33-1
Formula: C₁₇H₁₈FN₃O₃
MW: 331.34 g/mol

In stock

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API Reference Standards

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