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

Mapenterol Hydrochloride

CAS: 54238-51-6
Formula: C₁₄H₂₁Cl₂F₃N₂O
MW: 361.2 g/mol

VQ-031717

Reference Standard

Maprotiline hydrochloride

CAS: 10347-81-6
Formula: C₂₀H₂₄ClN
MW: 313.9 g/mol

VQ-026555

Reference Standard

Maralixibat chloride

CAS: 228113-66-4
Formula: C₄₀H₅₆ClN₃O₄S
MW: 710.4 g/mol

VQ-031722

Reference Standard

Maraviroc

CAS: 376348-65-1
Formula: C₂₉H₄₁F₂N₅O
MW: 513.7 g/mol

VQ-031723

Reference Standard

Marbofloxacin

CAS: 115550-35-1
Formula: C₁₇H₁₉FN₄O₄
MW: 362.4 g/mol

VQ-023026

Reference Standard

Maribavir

CAS: 176161-24-3
Formula: C₁₅H₁₉Cl₂N₃O₄
MW: 376.2 g/mol

VQ-023030

Reference Standard

Maropitant

CAS: 147116-67-4
Formula: C₃₂H₄₀N₂O
MW: 468.7 g/mol

VQ-031730

Reference Standard

Maropitant (S,R-Isomer)

CAS: 2749352-23-4
Formula: C₃₂H₄₀N₂O
MW: 468.67 g/mol

VQ-038259

Reference Standard

Maropitant Citrate Hydrate

CAS: 359875-09-5
Formula: C₃₈H₅₀N₂O₉
MW: 678.8 g/mol

VQ-031733

Reference Standard

Maropitant Citrate Salt

CAS: 862543-54-2
Formula: C₃₈H₄₈N₂O₈
MW: 660.8 g/mol

VQ-031732

Reference Standard

Masitinib

CAS: 790299-79-5
Formula: C₂₈H₃₀N₆OS
MW: 498.6 g/mol

VQ-031734

Reference Standard

Matairesinol

CAS: 580-72-3
Formula: C₂₀H₂₂O₆
MW: 358.4 g/mol

VQ-032862

Reference Standard

Mavacamten

CAS: 1642288-47-8
Formula: C₁₅H₁₉N₃O₂
MW: 273.33 g/mol

In stock

Reference Standard

Maxacalcitol

CAS: 103909-75-7
Formula: C₂₆H₄₂O₄
MW: 418.6 g/mol

VQ-038263

Reference Standard

Maytansine

CAS: 35846-53-8
Formula: C₃₄H₄₆ClN₃O₁₀
MW: 692.2 g/mol

VQ-031743

Reference Standard

Mebeverine Hydrochloride

CAS: 2753-45-9
Formula: C₂₅H₃₆ClNO₅
MW: 466 g/mol

VQ-023033

Reference Standard

Mebhydrolin

CAS: 524-81-2
Formula: C₁₉H₂₀N₂
MW: 276.4 g/mol

VQ-049023

Reference Standard

Mebhydrolin Napadisilate

CAS: 6153-33-9
Formula: C₂₉H₂₈N₂O₆S₂
MW: 564.7 g/mol

VQ-038269

Reference Standard

Meclizine

CAS: 569-65-3
Formula: C₂₅H₂₇ClN₂
MW: 390.9 g/mol

VQ-007560

Reference Standard

Meclizine Dihydrochloride

CAS: 1104-22-9
Formula: C₂₅H₂₉Cl₃N₂
MW: 463.9 g/mol

In stock

Reference Standard

Meclizine Dihydrochloride Monohydrate

CAS: 31884-77-2
Formula: C₂₅H₃₀Cl₂N₂O
MW: 445.4 g/mol

VQ-026574

Reference Standard

Meclocycline

CAS: 2013-58-3
Formula: C₂₂H₂₁ClN₂O₈
MW: 476.9 g/mol

VQ-031756

Reference Standard

Meclofenamate Sodium

CAS: 6385-02-0
Formula: C₁₄H₁₀Cl₂NNaO₂
MW: 318.1 g/mol

VQ-038273

Reference Standard

Meclofenamic Acid

CAS: 644-62-2
Formula: C₁₄H₁₁Cl₂NO₂
MW: 296.1 g/mol

VQ-026576

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API Reference Standards

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