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

Calcifediol Monohydrate

CAS: 63283-36-3
Formula: C₂₇H₄₆O₃
MW: 418.7 g/mol

VQ-024949

Reference Standard

Calcipotriol

CAS: 112965-21-6
Formula: C₂₇H₄₀O₃
MW: 412.6 g/mol

VQ-021953

Reference Standard

Calcipotriol Monohydrate

CAS: 147657-22-5
Formula: C₂₇H₄₂O₄
MW: 430.6 g/mol

VQ-029586

Reference Standard

Calcitonin Salmon

CAS: 47931-85-1
Formula: C₁₄₅H₂₄₀N₄₄O₄₈S₂
MW: 3431.9 g/mol

VQ-036085

Reference Standard

Calcitriol Monohydrate

CAS: 77326-95-5
Formula: C₂₇H₄₆O₄
MW: 434.7 g/mol

VQ-036086

Reference Standard

Calcium Citrate Malate

CAS: 142606-53-9
Formula: C₁₆H₁₄Ca₄O₁₉
MW: 670.58 g/mol

VQ-036088

Reference Standard

Calcium dobesilate Hydrate

CAS: 117552-78-0
Formula: C₁₂H₁₂CaO₁₁S₂
MW: 436.4 g/mol

VQ-036089

Reference Standard

Calcium Folinate

CAS: 1492-18-8
Formula: C₂₀H₂₃CaN₇O₇
MW: 513.5 g/mol

VQ-024728

Reference Standard

Calcium gluconate

CAS: 299-28-5
Formula: C₁₂H₂₂CaO₁₄
MW: 430.37 g/mol

VQ-029589

Reference Standard

Calcium Glycerophosphate

CAS: 27214-00-2
Formula: C₃H₇CaO₆P
MW: 210.14 g/mol

VQ-048540

Reference Standard

Calcium Levofolinate

CAS: 80433-71-2
Formula: C₂₀H₂₁CaN₇O₇
MW: 511.5 g/mol

VQ-037394

Reference Standard

Calcium levulinate dihydrate

CAS: 5743-49-7
Formula: C₁₀H₁₈CaO₈
MW: 306.32 g/mol

VQ-036093

Reference Standard

Calcobutrol

CAS: 151878-23-8
Formula: C₁₈H₃₂CaN₄O₉
MW: 488.5 g/mol

VQ-032338

Reference Standard

Calcobutrol Sodium Salt

CAS: 2447549-29-1
Formula: C₁₈H₃₁N₄Na₃O₉
MW: 516.4 g/mol

VQ-029591

Reference Standard

Caldiamide Sodium

CAS: 131410-50-9
Formula: C₁₆H₂₆CaN₅NaO₈
MW: 479.47 g/mol

VQ-036094

Reference Standard

Calicheamicin

CAS: 108212-75-5
Formula: C₅₅H₇₄IN₃O₂₁S₄
MW: 1368.4 g/mol

VQ-047668

Reference Standard

Calteridol Calcium

CAS: 121915-83-1
Formula: C₃₄H₅₈Ca₃N₈O₁₄
MW: 923.1 g/mol

VQ-036096

Reference Standard

Cambendazole

CAS: 26097-80-3
Formula: C₁₄H₁₄N₄O₂S
MW: 302.35 g/mol

VQ-036097

Reference Standard

Camostat

CAS: 59721-28-7
Formula: C₂₀H₂₂N₄O₅
MW: 398.4 g/mol

VQ-045249

Reference Standard

Camostat Mesylate

CAS: 59721-29-8
Formula: C₂₁H₂₆N₄O₈S
MW: 494.5 g/mol

VQ-036098

Reference Standard

Camptothecin Sodium Salt

CAS: 72517-83-0
Formula: C₂₀H₁₆N₂NaO₄⁺
MW: 371.3 g/mol

VQ-044327

Reference Standard

Camylofin Dihydrochloride

CAS: 5892-41-1
Formula: C₁₉H₃₄Cl₂N₂O₂
MW: 393.4 g/mol

VQ-024734

Reference Standard

Canagliflozin Hemihydrate

CAS: 928672-86-0
Formula: C₂₄H₂₅FO₅S
MW: 444.5 g/mol

In stock

Reference Standard

Canagliflozin WS

CAS: 842133-18-0
Formula: C₂₄H₂₅FO₅S
MW: 444.5 g/mol

In stock

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API Reference Standards

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