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

Docosahexaenoic Acid

CAS: 6217-54-5
Formula: C₂₂H₃₂O₂
MW: 328.5 g/mol

VQ-032384

Reference Standard

Docosanal

CAS: 57402-36-5
Formula: C₂₂H₄₄O
MW: 324.6 g/mol

VQ-036766

Reference Standard

Dofetilide

CAS: 115256-11-6
Formula: C₁₉H₂₇N₃O₅S₂
MW: 441.6 g/mol

VQ-030252

Reference Standard

Dolasetron

CAS: 115956-12-2
Formula: C₁₉H₂₀N₂O₃
MW: 324.4 g/mol

VQ-048063

Reference Standard

Dolastatin 10

CAS: 110417-88-4
Formula: C₄₂H₆₈N₆O₆S
MW: 785.1 g/mol

VQ-048064

Reference Standard

Dolutegravir

CAS: 1051375-16-6
Formula: C₂₀H₁₉F₂N₃O₅
MW: 419.4 g/mol

VQ-022421

Reference Standard

Dolutegravir Sodium

CAS: 1051375-19-9
Formula: C₂₀H₁₈F₂N₃NaO₅
MW: 441.4 g/mol

VQ-022420

Reference Standard

Domperidone Maleate

CAS: 83898-65-1
Formula: C₂₆H₂₈ClN₅O₆
MW: 542 g/mol

VQ-025367

Reference Standard

Donepezil

CAS: 120014-06-4
Formula: C₂₄H₂₉NO₃
MW: 379.5 g/mol

VQ-007432

Reference Standard

Donepezil Hydrochloride

CAS: 120011-70-3
Formula: C₂₄H₃₀ClNO₃
MW: 416 g/mol

In stock

Reference Standard

Donepezil Hydrochloride Monohydrate

CAS: 884740-09-4
Formula: C₂₄H₃₂ClNO₄
MW: 434 g/mol

In stock

Reference Standard

Dopaquinone

CAS: 25520-73-4
Formula: C₉H₉NO₄
MW: 195.17 g/mol

VQ-039706

Reference Standard

Doramectin

CAS: 117704-25-3
Formula: C₅₀H₇₄O₁₄
MW: 899.1 g/mol

VQ-030288

Reference Standard

Doravirine

CAS: 1338225-97-0
Formula: C₁₇H₁₁ClF₃N₅O₃
MW: 425.7 g/mol

VQ-025378

Reference Standard

Doripenem

CAS: 148016-81-3
Formula: C₁₅H₂₄N₄O₆S₂
MW: 420.5 g/mol

VQ-030289

Reference Standard

Doripenem monohydrate

CAS: 364622-82-2
Formula: C₁₅H₂₆N₄O₇S₂
MW: 438.5 g/mol

VQ-030290

Reference Standard

Dorzolamide

CAS: 120279-96-1
Formula: C₁₀H₁₆N₂O₄S₃
MW: 324.4 g/mol

VQ-043145

Reference Standard

Dorzolamide Hydrochloride

CAS: 130693-82-2
Formula: C₁₀H₁₇ClN₂O₄S₃
MW: 360.9 g/mol

VQ-022434

Reference Standard

Dosulepin Hydrochloride

CAS: 897-15-4
Formula: C₁₉H₂₂ClNS
MW: 331.9 g/mol

VQ-030293

Reference Standard

Dotinurad

CAS: 1285572-51-1
Formula: C₁₄H₉Cl₂NO₄S
MW: 358.2 g/mol

VQ-030295

Reference Standard

Dovramilast

CAS: 340019-69-4
Formula: C₂₄H₂₈N₂O₆S
MW: 472.6 g/mol

VQ-030296

Reference Standard

Doxapram Hydrochloride Monohydrate

CAS: 7081-53-0
Formula: C₂₄H₃₃ClN₂O₃
MW: 433 g/mol

VQ-048085

Reference Standard

Doxazosin

CAS: 74191-85-8
Formula: C₂₃H₂₅N₅O₅
MW: 451.5 g/mol

VQ-030300

Reference Standard

Doxazosin Mesylate

CAS: 77883-43-3
Formula: C₂₄H₂₉N₅O₈S
MW: 547.6 g/mol

VQ-025387

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API Reference Standards

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