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

Vardenafil Hydrochloride Trihydrate

CAS: 330808-88-3
Formula: C₂₃H₃₉ClN₆O₇S
MW: 579.1 g/mol

VQ-028635

Reference Standard

Varenicline

CAS: 249296-44-4
Formula: C₁₃H₁₃N₃
MW: 211.26 g/mol

In stock

Reference Standard

Varenicline citrate

CAS: 536696-70-5
Formula: C₁₉H₂₁N₃O₇
MW: 403.4 g/mol

VQ-042829

Reference Standard

Varenicline Tartrate

CAS: 375815-87-5
Formula: C₁₇H₁₉N₃O₆
MW: 361.3 g/mol

In stock

Reference Standard

Vasicine

CAS: 6159-56-4
Formula: C₁₁H₁₂N₂O
MW: 188.23 g/mol

VQ-042831

Reference Standard

Vasopressin

CAS: 11000-17-2
Formula: C₉₂H₁₃₀N₂₈O₂₄S₄
MW: 2140.45 g/mol

VQ-034553

Reference Standard

Vecabrutinib

CAS: 1510829-06-7
Formula: C₂₂H₂₄ClF₄N₇O₂
MW: 529.9 g/mol

VQ-034556

Reference Standard

Vedaprofen

CAS: 71109-09-6
Formula: C₁₉H₂₂O₂
MW: 282.4 g/mol

VQ-034557

Reference Standard

Vemurafenib

CAS: 918504-65-1
Formula: C₂₃H₁₈ClF₂N₃O₃S
MW: 489.9 g/mol

VQ-034563

Reference Standard

Venetoclax WS

CAS: 1257044-40-8
Formula: C₄₅H₅₀ClN₇O₇S
MW: 868.4 g/mol

In stock

Reference Standard

Venlafaxine

CAS: 93413-69-5
Formula: C₁₇H₂₇NO₂
MW: 277.4 g/mol

In stock

Reference Standard

Venlafaxine Hydrochloride

CAS: 99300-78-4
Formula: C₁₇H₂₈ClNO₂
MW: 313.9 g/mol

VQ-007842

Reference Standard

Verapamil

CAS: 52-53-9
Formula: C₂₇H₃₈N₂O₄
MW: 454.6 g/mol

VQ-007843

Reference Standard

Verapamil Hydrochloride

CAS: 152-11-4
Formula: C₂₇H₃₉ClN₂O₄
MW: 491.1 g/mol

In stock

Reference Standard

Vericiguat

CAS: 1350653-20-1
Formula: C₁₉H₁₆F₂N₈O₂
MW: 426.4 g/mol

In stock

Reference Standard

Verteporfin

CAS: 129497-78-5
Formula: C₄₁H₄₂N₄O₈
MW: 718.79 g/mol

VQ-039158

Reference Standard

Vibegron

CAS: 1190389-15-1
Formula: C₂₆H₂₈N₄O₃
MW: 444.5 g/mol

VQ-023997

Reference Standard

Vicagrel

CAS: 1314081-53-2
Formula: C₁₈H₁₈ClNO₄S
MW: 379.9 g/mol

VQ-042874

Reference Standard

Vidarabine

CAS: 5536-17-4
Formula: C₁₀H₁₃N₅O₄
MW: 267.24 g/mol

VQ-034598

Reference Standard

Vigabatrin

CAS: 60643-86-9
Formula: C₆H₁₁NO₂
MW: 129.16 g/mol

VQ-042875

Reference Standard

Vigabatrin

CAS: 68506-86-5
Formula: C₆H₁₁NO₂
MW: 129.16 g/mol

VQ-043348

Reference Standard

Vilanterol

CAS: 503068-34-6
Formula: C₂₄H₃₃Cl₂NO₅
MW: 486.4 g/mol

VQ-028695

Reference Standard

Vilazodone

CAS: 163521-12-8
Formula: C₂₆H₂₇N₅O₂
MW: 441.5 g/mol

VQ-007846

Reference Standard

Vilazodone Hydrochloride

CAS: 163521-08-2
Formula: C₂₆H₂₈ClN₅O₂
MW: 478 g/mol

VQ-007847

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API Reference Standards

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