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

Fluvoxamine

CAS: 54739-18-3
Formula: C₁₅H₂₁F₃N₂O₂
MW: 318.33 g/mol

VQ-030855

Reference Standard

Fluvoxamine Maleate

CAS: 61718-82-9
Formula: C₁₉H₂₅F₃N₂O₆
MW: 434.4 g/mol

VQ-025890

Reference Standard

Fluxapyroxad

CAS: 907204-31-3
Formula: C₁₈H₁₂F₅N₃O
MW: 381.3 g/mol

VQ-037392

Reference Standard

Folic Acid Hydrate

CAS: 1174277-30-5
Formula: C₁₉H₂₁N₇O₇
MW: 459.4 g/mol

VQ-037397

Reference Standard

Folinic acid calcium hydrate

CAS: 2060570-47-8
Formula: C₂₀H₂₁N₇O₇₂ : Ca : X(H₂O)

VQ-045053

Reference Standard

Folitixorin

CAS: 3432-99-3
Formula: C₂₀H₂₃N₇O₆
MW: 457.4 g/mol

VQ-025896

Reference Standard

Folitixorin Sodium

CAS: 133978-76-4
Formula: C₂₀H₂₁N₇Na₂O₆
MW: 501.4 g/mol

VQ-048451

Reference Standard

Fomepizole

CAS: 7554-65-6
Formula: C₄H₆N₂
MW: 82.1 g/mol

VQ-035210

Reference Standard

Fomesafen

CAS: 72178-02-0
Formula: C₁₅H₁₀ClF₃N₂O₆S
MW: 438.8 g/mol

VQ-037403

Reference Standard

Fondaparinux

CAS: 104993-28-4
Formula: C₃₁H₅₃N₃O₄₉S₈
MW: 1508.3 g/mol

VQ-007487

Reference Standard

Fondaparinux Sodium

CAS: 114870-03-0
Formula: C₃₁H₄₃N₃Na₁₀O₄₉S₈
MW: 1728.1 g/mol

In stock

Reference Standard

Formamidine Hydrochloride

CAS: 6313-33-3
Formula: CH₅ClN₂
MW: 80.52 g/mol

VQ-039491

Reference Standard

Formamidine Sulfinic Acid

CAS: 1758-73-2
Formula: CH₄N₂O₂S
MW: 108.12 g/mol

VQ-049433

Reference Standard

Formestane

CAS: 566-48-3
Formula: C₁₉H₂₆O₃
MW: 302.4 g/mol

VQ-037408

Reference Standard

Formononetin

CAS: 485-72-3
Formula: C₁₆H₁₂O₄
MW: 268.26 g/mol

VQ-037409

Reference Standard

Formoterol

CAS: 73573-87-2
Formula: C₁₉H₂₄N₂O₄
MW: 344.4 g/mol

VQ-030865

Reference Standard

Formoterol

CAS: 128954-45-0
Formula: C₁₉H₂₄N₂O₄
MW: 344.4 g/mol

VQ-043180

Reference Standard

Formoterol Fumarate

CAS: 43229-80-7
Formula: C₄₂H₅₂N₄O₁₂
MW: 804.9 g/mol

VQ-025903

Reference Standard

Formoterol fumarate dihydrate

CAS: 183814-30-4
Formula: C₄₂H₅₆N₄O₁₄
MW: 840.9 g/mol

VQ-025902

Reference Standard

Fosamprenavir

CAS: 226700-79-4
Formula: C₂₅H₃₆N₃O₉PS
MW: 585.6 g/mol

VQ-030870

Reference Standard

Fosamprenavir Calcium

CAS: 226700-81-8
Formula: C₂₅H₃₄CaN₃O₉PS
MW: 623.7 g/mol

VQ-030869

Reference Standard

Fosaprepitant

CAS: 172673-20-0
Formula: C₂₃H₂₂F₇N₄O₆P
MW: 614.4 g/mol

VQ-007489

Reference Standard

Foscarbidopa

CAS: 1907685-81-7
Formula: C₁₀H₁₅N₂O₇P
MW: 306.21 g/mol

VQ-037422

Reference Standard

Fosfomycin

CAS: 23155-02-4
Formula: C₃H₇O₄P
MW: 138.06 g/mol

VQ-044183

Need a price, a spec or a custom compound?

Send us your list — product names or CAS numbers, grade, quantity and destination. Our team replies with a formal quotation, COA and lead time.

Request a quote Contact sales

Laboratory Chemicals & Reagents View all

Solvents View all

Life Science & Biochemicals View all

APIs & Bulk Drugs View all

Impurities & Reference Standards View all

Pharma Intermediates & Building Blocks View all

Inorganic Chemicals, Metals & Advanced Materials View all

Industrial & Specialty Chemicals View all

API Reference Standards

Need a price, a spec or a custom compound?