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

Fosfomycin (R)-1-phenethylamine Monohydrate

CAS: 65794-75-4
Formula: C₁₁H₂₀NO₅P
MW: 277.25 g/mol

VQ-037426

Reference Standard

Fosfomycin Calcium

CAS: 26016-98-8
Formula: C₃H₅CaO₄P
MW: 176.12 g/mol

VQ-043735

Reference Standard

Fosfomycin Calcium Hydrate

CAS: 26469-67-0
Formula: C₃H₇CaO₅P
MW: 194.14 g/mol

VQ-025925

Reference Standard

Fosfomycin Disodium

CAS: 26016-99-9
Formula: C₃H₅Na₂O₄P
MW: 182.02 g/mol

VQ-037428

Reference Standard

Fosfomycin Trometamol

CAS: 78964-85-9
Formula: C₇H₁₈NO₇P
MW: 259.19 g/mol

VQ-025913

Reference Standard

Fosfructose Trisodium Octahydrate

CAS: 81028-91-3
Formula: C₆H₂₇Na₃O₂₀P₂
MW: 550.18 g/mol

VQ-019601

Reference Standard

Fosinopril sodium

CAS: 88889-14-9
Formula: C₃₀H₄₅NNaO₇P
MW: 585.6 g/mol

VQ-025920

Reference Standard

Fosnetupitant

CAS: 1703748-89-3
Formula: C₃₁H₃₅F₆N₄O₅P
MW: 688.6 g/mol

VQ-025922

Reference Standard

Fosphenytoin Sodium

CAS: 92134-98-0
Formula: C₁₆H₁₃N₂Na₂O₆P
MW: 406.24 g/mol

VQ-030882

Reference Standard

Fosravuconazole

CAS: 351227-64-0
Formula: C₂₃H₂₀F₂N₅O₅PS
MW: 547.5 g/mol

VQ-025924

Reference Standard

Fostamatinib

CAS: 901119-35-5
Formula: C₂₃H₂₆FN₆O₉P
MW: 580.5 g/mol

VQ-007490

Reference Standard

Fostamatinib Disodium

CAS: 1025687-58-4
Formula: C₂₃H₃₆FN₆Na₂O₁₅P
MW: 732.5 g/mol

In stock

Reference Standard

Fostemsavir

CAS: 864953-29-7
Formula: C₂₅H₂₆N₇O₈P
MW: 583.5 g/mol

VQ-030888

Reference Standard

Fostemsavir Tromethamine

CAS: 864953-39-9
Formula: C₂₉H₃₇N₈O₁₁P
MW: 704.6 g/mol

VQ-048472

Reference Standard

Framycetin monosulfate

CAS: 25389-98-4
Formula: C₂₃H₄₈N₆O₁₇S
MW: 712.7 g/mol

VQ-037437

Reference Standard

Framycetin Sulphate

CAS: 4146-30-9
Formula: C₂₃H₅₂N₆O₂₅S₃
MW: 908.9 g/mol

VQ-030889

Reference Standard

Frovatriptan Succinate hydrate

CAS: 158930-17-7
Formula: C₁₈H₂₅N₃O₆
MW: 379.4 g/mol

VQ-030890

Reference Standard

Fruquintinib

CAS: 1194506-26-7
Formula: C₂₁H₁₉N₃O₅
MW: 393.4 g/mol

VQ-025929

Reference Standard

Fudosteine

CAS: 13189-98-5
Formula: C₆H₁₃NO₃S
MW: 179.24 g/mol

VQ-037447

Reference Standard

Fulvestrant

CAS: 129453-61-8
Formula: C₃₂H₄₇F₅O₃S
MW: 606.8 g/mol

VQ-022722

Reference Standard

Fumonisin B1

CAS: 116355-83-0
Formula: C₃₄H₅₉NO₁₅
MW: 721.8 g/mol

VQ-032380

Reference Standard

Fumonisin B2

CAS: 116355-84-1
Formula: C₃₄H₅₉NO₁₄
MW: 705.8 g/mol

VQ-038999

Reference Standard

Furagin

CAS: 1672-88-4
Formula: C₁₀H₈N₄O₅
MW: 264.19 g/mol

VQ-030908

Reference Standard

Furaltadone

CAS: 139-91-3
Formula: C₁₃H₁₆N₄O₆
MW: 324.29 g/mol

VQ-037455

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API Reference Standards

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