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

Hydrocortisone sodium succinate

CAS: 125-04-2
Formula: C₂₅H₃₃NaO₈
MW: 484.5 g/mol

VQ-031088

Reference Standard

Hydrocortisone Valerate

CAS: 57524-89-7
Formula: C₂₆H₃₈O₆
MW: 446.6 g/mol

VQ-048586

Reference Standard

Hydroflumethiazide

CAS: 135-09-1
Formula: C₈H₈F₃N₃O₄S₂
MW: 331.3 g/mol

VQ-031101

Reference Standard

Hydroxocobalamin

CAS: 13422-51-0
Formula: C₆₂H₈₉CoN₁₃O₁₅P
MW: 1346.4 g/mol

VQ-036460

Reference Standard

Hydroxocobalamin Acetate

CAS: 22465-48-1
Formula: C₆₄H₉₂CoN₁₃O₁₆P-2
MW: 1389.4 g/mol

VQ-026086

Reference Standard

Hydroxocobalamin Hydrochloride

CAS: 59461-30-2
Formula: C₆₂H₉₀ClCoN₁₃O₁₅P
MW: 1382.8 g/mol

VQ-036459

Reference Standard

Hydroxychloroquine

CAS: 118-42-3
Formula: C₁₈H₂₆ClN₃O
MW: 335.9 g/mol

In stock

Reference Standard

Hydroxyzine Pamoate

CAS: 10246-75-0
Formula: C₄₄H₄₃ClN₂O₈
MW: 763.3 g/mol

VQ-031109

Reference Standard

Hyoscyamine Sulfate

CAS: 620-61-1
Formula: C₃₄H₄₈N₂O₁₀S
MW: 676.8 g/mol

VQ-037611

Reference Standard

Hyoscyamine Sulphate

CAS: 6835-16-1
Formula: C₃₄H₅₂N₂O₁₂S
MW: 712.8 g/mol

VQ-031115

Reference Standard

Ibandronate

CAS: 114084-78-5
Formula: C₉H₂₃NO₇P₂
MW: 319.23 g/mol

VQ-026093

Reference Standard

Ibandronate sodium

CAS: 138844-81-2
Formula: C₉H₂₂NNaO₇P₂
MW: 341.21 g/mol

VQ-037612

Reference Standard

Ibandronate Sodium Monohydrate

CAS: 138926-19-9
Formula: C₉H₂₄NNaO₈P₂
MW: 359.23 g/mol

VQ-026092

Reference Standard

Ibogaine Hydrochloride

CAS: 5934-55-4
Formula: C₂₀H₂₇ClN₂O
MW: 346.9 g/mol

VQ-043670

Reference Standard

Ibrutinib WS

CAS: 936563-96-1
Formula: C₂₅H₂₄N₆O₂
MW: 440.5 g/mol

In stock

Reference Standard

Ibufenac

CAS: 1553-60-2
Formula: C₁₂H₁₆O₂
MW: 192.25 g/mol

VQ-037634

Reference Standard

Ibuprofen sodium

CAS: 31121-93-4
Formula: C₁₃H₁₇NaO₂
MW: 228.26 g/mol

VQ-007503

Reference Standard

Ibuprofen Sodium Dihydrate

CAS: 527688-20-6
Formula: C₁₃H₂₁NaO₄
MW: 264.29 g/mol

VQ-037622

Reference Standard

Ibuprofen WS

CAS: 15687-27-1
Formula: C₁₃H₁₈O₂
MW: 206.28 g/mol

In stock

Reference Standard

Ibutamoren

CAS: 159634-47-6
Formula: C₂₇H₃₆N₄O₅S
MW: 528.7 g/mol

VQ-040651

Reference Standard

Icatibant Acetate

CAS: 138614-30-9
Formula: C₆₁H₉₃N₁₉O₁₅S
MW: 1364.6 g/mol

VQ-031144

Reference Standard

Icotinib Hydrochloride

CAS: 1204313-51-8
Formula: C₂₂H₂₂ClN₃O₄
MW: 427.9 g/mol

VQ-037650

Reference Standard

Icotrokinra

CAS: 2763602-16-8
Formula: C₉₀H₁₂₀N₂₀O₂₂S₂
MW: 1898.2 g/mol

VQ-048633

Reference Standard

Idarubicin

CAS: 58957-92-9
Formula: C₂₆H₂₇NO₉
MW: 497.5 g/mol

VQ-037652

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API Reference Standards

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