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

Pivampicillin

CAS: 33817-20-8
Formula: C₂₂H₂₉N₃O₆S
MW: 463.5 g/mol

VQ-044573

Reference Standard

Pivmecillinam Hydrochloride

CAS: 32887-03-9
Formula: C₂₁H₃₄ClN₃O₅S
MW: 476 g/mol

VQ-033237

Reference Standard

Plazomicin

CAS: 1154757-24-0
Formula: C₂₅H₄₈N₆O₁₀
MW: 592.7 g/mol

VQ-027546

Reference Standard

Plazomicin Sulfate

CAS: 1380078-95-4
Formula: C₂₅H₅₀N₆O₁₄S
MW: 690.8 g/mol

VQ-041540

Reference Standard

Plecanatide

CAS: 467426-54-6
Formula: C₆₅H₁₀₄N₁₈O₂₆S₄
MW: 1681.9 g/mol

VQ-032509

Reference Standard

Plerixafor WS

CAS: 110078-46-1
Formula: C₂₈H₅₄N₈
MW: 502.8 g/mol

VQ-007660

Reference Standard

Policosanol

CAS: 142583-61-7
Formula: C₂₈H₅₈O
MW: 410.76 g/mol

VQ-039071

Reference Standard

Policresulen

CAS: 101418-00-2
Formula: (C₇H₈O₄S.CH₂O)x
MW: 218.23 g/mol

VQ-041544

Reference Standard

Polmacoxib

CAS: 301692-76-2
Formula: C₁₈H₁₆FNO₄S
MW: 361.4 g/mol

VQ-033240

Reference Standard

Polymyxin B

CAS: 1404-26-8
Formula: C₅₆H₉₈N₁₆O₁₃
MW: 1203.5 g/mol

VQ-041547

Reference Standard

Pomalidomide WS

CAS: 19171-19-8
Formula: C₁₃H₁₁N₃O₄
MW: 273.24 g/mol

In stock

Reference Standard

Ponatinib

CAS: 943319-70-8
Formula: C₂₉H₂₇F₃N₆O
MW: 532.6 g/mol

VQ-027556

Reference Standard

Ponatinib hydrochloride

CAS: 1114544-31-8
Formula: C₂₉H₂₈ClF₃N₆O
MW: 569 g/mol

VQ-041556

Reference Standard

Ponesimod

CAS: 854107-55-4
Formula: C₂₃H₂₅ClN₂O₄S
MW: 461 g/mol

VQ-035314

Reference Standard

Porfiromycin

CAS: 801-52-5
Formula: C₁₆H₂₀N₄O₅
MW: 348.35 g/mol

VQ-043611

Reference Standard

Posaconazole

CAS: 171228-49-2
Formula: C₃₇H₄₂F₂N₈O₄
MW: 700.8 g/mol

In stock

Reference Standard

Potassium Guaiacolsulfonate

CAS: 78247-49-1
Formula: C₇H₇SO₅.K.0.5H₂O
MW: 251.3 g/mol

VQ-048562

Reference Standard

Pragabaline WS

CAS: 148553-50-8
Formula: C₈H₁₇NO₂
MW: 159.23 g/mol

In stock

Reference Standard

Pralatrexate

CAS: 146464-95-1
Formula: C₂₃H₂₃N₇O₅
MW: 477.5 g/mol

VQ-027561

Reference Standard

Pralidoxime Chloride

CAS: 51-15-0
Formula: C₇H₉ClN₂O
MW: 172.61 g/mol

VQ-033264

Reference Standard

Pralidoxime Iodide

CAS: 94-63-3
Formula: C₇H₉IN₂O
MW: 264.06 g/mol

VQ-040136

Reference Standard

Prallethrin

CAS: 23031-36-9
Formula: C₁₉H₂₄O₃
MW: 300.4 g/mol

VQ-040644

Reference Standard

Pralmorelin

CAS: 158861-67-7
Formula: C₄₅H₅₅N₉O₆
MW: 818 g/mol

VQ-044662

Reference Standard

Pralsetinib

CAS: 2097132-94-8
Formula: C₂₇H₃₂FN₉O₂
MW: 533.6 g/mol

VQ-033267

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API Reference Standards

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