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

Osimertinib

CAS: 1421373-65-0
Formula: C₂₈H₃₃N₇O₂
MW: 499.6 g/mol

In stock

Reference Standard

Osimertinib Mesylate

CAS: 1421373-66-1
Formula: C₂₉H₃₇N₇O₅S
MW: 595.7 g/mol

In stock

Reference Standard

Ospemifene

CAS: 128607-22-7
Formula: C₂₄H₂₃ClO₂
MW: 378.9 g/mol

VQ-027061

Reference Standard

Ostarine

CAS: 841205-47-8
Formula: C₁₉H₁₄F₃N₃O₃
MW: 389.3 g/mol

VQ-049367

Reference Standard

Osunprotafib

CAS: 2489404-97-7
Formula: C₁₇H₂₄FN₃O₄S
MW: 385.5 g/mol

VQ-032905

Reference Standard

Oteseconazole

CAS: 1340593-59-0
Formula: C₂₃H₁₆F₇N₅O₂
MW: 527.4 g/mol

VQ-027062

Reference Standard

Otilonium Bromide

CAS: 26095-59-0
Formula: C₂₉H₄₃BrN₂O₄
MW: 563.6 g/mol

VQ-027319

Reference Standard

Oxaceprol

CAS: 33996-33-7
Formula: C₇H₁₁NO₄
MW: 173.17 g/mol

VQ-041252

Reference Standard

Oxacillin

CAS: 66-79-5
Formula: C₁₉H₁₉N₃O₅S
MW: 401.4 g/mol

VQ-044185

Reference Standard

Oxacillin Sodium Monohydrate

CAS: 7240-38-2
Formula: C₁₉H₂₀N₃NaO₆S
MW: 441.4 g/mol

VQ-019562

Reference Standard

Oxacillin sodium salt

CAS: 1173-88-2
Formula: C₁₉H₁₈N₃NaO₅S
MW: 423.4 g/mol

VQ-041253

Reference Standard

Oxandrolone

CAS: 53-39-4
Formula: C₁₉H₃₀O₃
MW: 306.4 g/mol

VQ-043247

Reference Standard

Oxantel Pamoate

CAS: 68813-55-8
Formula: C₃₆H₃₂N₂O₇
MW: 604.6 g/mol

VQ-041259

Reference Standard

Oxaprozin

CAS: 21256-18-8
Formula: C₁₈H₁₅NO₃
MW: 293.3 g/mol

VQ-032995

Reference Standard

Oxcarbazepine WS

CAS: 28721-07-5
Formula: C₁₅H₁₂N₂O₂
MW: 252.27 g/mol

In stock

Reference Standard

Oxeladin Hydrogen Citrate

CAS: 52432-72-1
Formula: C₂₆H₄₁NO₁₀
MW: 527.6 g/mol

VQ-043248

Reference Standard

Oxiconazole Nitrate

CAS: 64211-46-7
Formula: C₁₈H₁₄Cl₄N₄O₄
MW: 492.1 g/mol

VQ-027329

Reference Standard

Oxiracetam

CAS: 62613-82-5
Formula: C₆H₁₀N₂O₃
MW: 158.16 g/mol

VQ-043861

Reference Standard

Oxolamine Citrate

CAS: 1949-20-8
Formula: C₂₀H₂₇N₃O₈
MW: 437.4 g/mol

VQ-033007

Reference Standard

Oxolinic acid

CAS: 14698-29-4
Formula: C₁₃H₁₁NO₅
MW: 261.23 g/mol

VQ-041272

Reference Standard

Oxomemazine

CAS: 3689-50-7
Formula: C₁₈H₂₂N₂O₂S
MW: 330.4 g/mol

VQ-041274

Reference Standard

Oxomemazine Hydrochloride

CAS: 4784-40-1
Formula: C₁₈H₂₃ClN₂O₂S
MW: 366.9 g/mol

VQ-027333

Reference Standard

Oxprenolol Hydrochloride

CAS: 6452-73-9
Formula: C₁₅H₂₄ClNO₃
MW: 301.81 g/mol

VQ-033008

Reference Standard

Oxybuprocaine

CAS: 99-43-4
Formula: C₁₇H₂₈N₂O₃
MW: 308.4 g/mol

VQ-033010

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API Reference Standards

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