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

Vildagliptin WS

CAS: 274901-16-5
Formula: C₁₇H₂₅N₃O₂
MW: 303.4 g/mol

In stock

Reference Standard

Viloxazine

CAS: 46817-91-8
Formula: C₁₃H₁₉NO₃
MW: 237.29 g/mol

VQ-007849

Reference Standard

Viloxazine Hydrochloride

CAS: 35604-67-2
Formula: C₁₃H₂₀ClNO₃
MW: 273.75 g/mol

In stock

Reference Standard

Vinblastine Sulfate

CAS: 143-67-9
Formula: C₄₆H₆₀N₄O₁₃S
MW: 909.1 g/mol

VQ-028711

Reference Standard

Vincamine

CAS: 1617-90-9
Formula: C₂₁H₂₆N₂O₃
MW: 354.4 g/mol

VQ-032314

Reference Standard

Vincristine

CAS: 57-22-7
Formula: C₄₆H₅₆N₄O₁₀
MW: 825 g/mol

VQ-044214

Reference Standard

Vincristine sulfate

CAS: 2068-78-2
Formula: C₄₆H₅₈N₄O₁₄S
MW: 923 g/mol

VQ-028712

Reference Standard

Vinorelbine

CAS: 71486-22-1
Formula: C₄₅H₅₄N₄O₈
MW: 778.9 g/mol

VQ-034641

Reference Standard

Violaxanthin

CAS: 126-29-4
Formula: C₄₀H₅₆O₄
MW: 600.9 g/mol

VQ-042915

Reference Standard

Virginiamycin

CAS: 11006-76-1
Formula: C₇₁H₈₄N₁₀O₁₇
MW: 1349.5 g/mol

VQ-034649

Reference Standard

Vismodegib

CAS: 879085-55-9
Formula: C₁₉H₁₄Cl₂N₂O₃S
MW: 421.3 g/mol

In stock

Reference Standard

Vitamin A Palmitate

CAS: 79-81-2
Formula: C₃₆H₆₀O₂
MW: 524.9 g/mol

VQ-027782

Reference Standard

Vitamin K

CAS: 12001-79-5
Formula: C₃₁H₄₆O₂
MW: 450.7 g/mol

VQ-042929

Reference Standard

Vitexin

CAS: 3681-93-4
Formula: C₂₁H₂₀O₁₀
MW: 432.4 g/mol

VQ-032716

Reference Standard

Voclosporin

CAS: 515814-01-4
Formula: C₆₃H₁₁₁N₁₁O₁₂
MW: 1214.6 g/mol

VQ-034671

Reference Standard

Vonoprazan

CAS: 881681-00-1
Formula: C₁₇H₁₆FN₃O₂S
MW: 345.4 g/mol

VQ-007852

Reference Standard

Vorapaxar sulfate

CAS: 705260-08-8
Formula: C₂₉H₃₅FN₂O₈S
MW: 590.7 g/mol

VQ-034686

Reference Standard

Vorasidenib

CAS: 1644545-52-7
Formula: C₁₄H₁₃ClF₆N₆
MW: 414.74 g/mol

VQ-007853

Reference Standard

Voriconazole WS

CAS: 137234-62-9
Formula: C₁₆H₁₄F₃N₅O
MW: 349.31 g/mol

In stock

Reference Standard

Vorinostat

CAS: 149647-78-9
Formula: C₁₄H₂₀N₂O₃
MW: 264.32 g/mol

VQ-042944

Reference Standard

Vortioxetine

CAS: 508233-74-7
Formula: C₁₈H₂₂N₂S
MW: 298.4 g/mol

VQ-007855

Reference Standard

Vortioxetine Hydrobromide

CAS: 960203-27-4
Formula: C₁₈H₂₃BrN₂S
MW: 379.4 g/mol

In stock

Reference Standard

Vosoritide

CAS: 1480724-61-5
Formula: C₁₇₆H₂₉₀N₅₆O₅₁S₃
MW: 4103 g/mol

VQ-034706

Reference Standard

Voxilaprevir

CAS: 1535212-07-7
Formula: C₄₀H₅₂F₄N₆O₉S
MW: 868.9 g/mol

VQ-042957

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API Reference Standards

Need a price, a spec or a custom compound?