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

Epoxiconazole

CAS: 133855-98-8
Formula: C₁₇H₁₃ClFN₃O
MW: 329.8 g/mol

VQ-032951

Reference Standard

Eprazinone Dihydrochloride

CAS: 10402-53-6
Formula: C₂₄H₃₄Cl₂N₂O₂
MW: 453.4 g/mol

VQ-037033

Reference Standard

Eprinomectin

CAS: 123997-26-2
Formula: C₄₉H₇₃NO₁₄
MW: 900.1 g/mol

VQ-037034

Reference Standard

Eprosartan

CAS: 133040-01-4
Formula: C₂₃H₂₄N₂O₄S
MW: 424.5 g/mol

VQ-025569

Reference Standard

Eprosartan Mesylate

CAS: 144143-96-4
Formula: C₂₄H₂₈N₂O₇S₂
MW: 520.6 g/mol

VQ-030518

Reference Standard

Eprotirome

CAS: 355129-15-6
Formula: C₁₈H₁₇Br₂NO₅
MW: 487.1 g/mol

VQ-048240

Reference Standard

Eptifibatide

CAS: 188627-80-7
Formula: C₃₅H₄₉N₁₁O₉S₂
MW: 832 g/mol

VQ-030520

Reference Standard

Eptifibatide Acetate

CAS: 1248559-53-6
Formula: C₃₇H₅₃N₁₁O₁₁S₂
MW: 892 g/mol

VQ-048242

Reference Standard

Equilenin

CAS: 517-09-9
Formula: C₁₈H₁₈O₂
MW: 266.3 g/mol

In stock

Reference Standard

Equilenin Sulfate Sodium Salt

CAS: 16680-48-1
Formula: C₁₈H₁₇NaO₅S
MW: 368.4 g/mol

VQ-030576

Reference Standard

Equilin

CAS: 474-86-2
Formula: C₁₈H₂₀O₂
MW: 268.3 g/mol

VQ-025627

Reference Standard

Erdafitinib

CAS: 1346242-81-6
Formula: C₂₅H₃₀N₆O₂
MW: 446.5 g/mol

In stock

Reference Standard

Erdosteine

CAS: 84611-23-4
Formula: C₈H₁₁NO₄S₂
MW: 249.3 g/mol

VQ-022548

Reference Standard

Ergocorninine

CAS: 564-37-4
Formula: C₃₁H₃₉N₅O₅
MW: 561.7 g/mol

VQ-040876

Reference Standard

Ergocristinine

CAS: 511-07-9
Formula: C₃₅H₃₉N₅O₅
MW: 609.7 g/mol

VQ-040881

Reference Standard

Ergosine

CAS: 561-94-4
Formula: C₃₀H₃₇N₅O₅
MW: 547.6 g/mol

VQ-040879

Reference Standard

Ergosinine

CAS: 596-88-3
Formula: C₃₀H₃₇N₅O₅
MW: 547.6 g/mol

VQ-040880

Reference Standard

Eribulin

CAS: 253128-41-5
Formula: C₄₀H₅₉NO₁₁
MW: 729.9 g/mol

VQ-037046

Reference Standard

Eribulin mesylate

CAS: 441045-17-6
Formula: C₄₁H₆₃NO₁₄S
MW: 826 g/mol

VQ-025579

Reference Standard

Eriocitrin

CAS: 13463-28-0
Formula: C₂₇H₃₂O₁₅
MW: 596.5 g/mol

VQ-027241

Reference Standard

Erlotinib Acetate

CAS: 2055840-54-3
Formula: C₂₄H₂₅N₃O₅
MW: 435.5 g/mol

VQ-030530

Reference Standard

Erlotinib WS

CAS: 183321-74-6
Formula: C₂₂H₂₃N₃O₄
MW: 393.4 g/mol

In stock

Reference Standard

Ertapenem

CAS: 153832-46-3
Formula: C₂₂H₂₅N₃O₇S
MW: 475.5 g/mol

VQ-037057

Reference Standard

Ertapenem Disodium

CAS: 3017-69-4
Formula: C₄H₇Br
MW: 135 g/mol

VQ-048257

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API Reference Standards

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