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

Vaborbactam

CAS: 1360457-46-0
Formula: C₁₂H₁₆BNO₅S
MW: 297.14 g/mol

VQ-034513

Reference Standard

Vadadustat

CAS: 1000025-07-9
Formula: C₁₄H₁₁ClN₂O₄
MW: 306.7 g/mol

VQ-028602

Reference Standard

Valaciclovir

CAS: 124832-26-4
Formula: C₁₃H₂₀N₆O₄
MW: 324.34 g/mol

VQ-007828

Reference Standard

Valaciclovir Hydrochloride

CAS: 124832-27-5
Formula: C₁₃H₂₁ClN₆O₄
MW: 360.8 g/mol

In stock

Reference Standard

Valacyclovir hydrochloride dihydrate

CAS: 502421-45-6
Formula: C₁₃H₂₅ClN₆O₆
MW: 396.83 g/mol

VQ-042787

Reference Standard

Valbenazine

CAS: 1025504-45-3
Formula: C₂₄H₃₈N₂O₄
MW: 418.6 g/mol

VQ-034517

Reference Standard

Valbenazine tosylate

CAS: 1639208-54-0
Formula: C₃₈H₅₄N₂O₁₀S₂
MW: 763 g/mol

VQ-034518

Reference Standard

Valdecoxib

CAS: 181695-72-7
Formula: C₁₆H₁₄N₂O₃S
MW: 314.4 g/mol

VQ-023959

Reference Standard

Valerenic Acid

CAS: 3569-10-6
Formula: C₁₅H₂₂O₂
MW: 234.33 g/mol

VQ-042793

Reference Standard

Valganciclovir

CAS: 175865-60-8
Formula: C₁₄H₂₂N₆O₅
MW: 354.36 g/mol

VQ-007830

Reference Standard

Valganciclovir Hydrochloride

CAS: 175865-59-5
Formula: C₁₄H₂₃ClN₆O₅
MW: 390.82 g/mol

In stock

Reference Standard

Validamycin A

CAS: 37248-47-8
Formula: C₂₀H₃₅NO₁₃
MW: 497.5 g/mol

VQ-040600

Reference Standard

Valinomycin

CAS: 2001-95-8
Formula: C₅₄H₉₀N₆O₁₈
MW: 1111.3 g/mol

VQ-040051

Reference Standard

Valnemulin Hydrochloride

CAS: 133868-46-9
Formula: C₃₁H₅₃ClN₂O₅S
MW: 601.3 g/mol

VQ-034524

Reference Standard

Valproic Acid

CAS: 99-66-1
Formula: C₈H₁₆O₂
MW: 144.21 g/mol

In stock

Reference Standard

Valsartan Calcium Salt

CAS: 391230-95-8
Formula: C₂₄H₂₉N₅O₃.Ca
MW: 475.61 g/mol

VQ-007833

Reference Standard

Valsartan Disodium

CAS: 391230-93-6
Formula: C₂₄H₂₇N₅Na₂O₃
MW: 479.5 g/mol

In stock

Reference Standard

Valsartan Disodium Hydrate

CAS: 2578385-06-3
Formula: C₂₄H₂₉N₅O₃.H₂O.2Na
MW: 499.51 g/mol

VQ-007835

Reference Standard

Valsartan Potassium Salt

CAS: 391230-97-0
Formula: C₂₄H₂₉N₅O₃.K
MW: 474.63 g/mol

VQ-007836

Reference Standard

Valsartan WS

CAS: 137862-53-4
Formula: C₂₄H₂₉N₅O₃
MW: 435.5 g/mol

In stock

Reference Standard

Vandetanib

CAS: 443913-73-3
Formula: C₂₂H₂₄BrFN₄O₂
MW: 475.4 g/mol

VQ-028631

Reference Standard

Vardenafil

CAS: 224785-90-4
Formula: C₂₃H₃₂N₆O₄S
MW: 488.6 g/mol

VQ-042820

Reference Standard

Vardenafil Dihydrochloride Salt

CAS: 224789-15-5
Formula: C₂₃H₃₄Cl₂N₆O₄S
MW: 561.5 g/mol

VQ-034543

Reference Standard

Vardenafil Hydrochloride

CAS: 224785-91-5
Formula: C₂₃H₃₃ClN₆O₄S
MW: 525.1 g/mol

VQ-035501

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API Reference Standards

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