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

(S)-Metoprolol

CAS: 81024-42-2
Formula: C₁₅H₂₅NO₃
MW: 267.36 g/mol

VQ-031855

Reference Standard

(S)-Olodaterol

CAS: 868049-50-7
Formula: C₂₁H₂₆N₂O₅
MW: 386.4 g/mol

VQ-021286

Reference Standard

(S)-Oteseconazole

CAS: 1446515-60-1
Formula: C₂₃H₁₆F₇N₅O₂
MW: 527.4 g/mol

VQ-045484

Reference Standard

(S)-Phenylephrine Hydrochloride

CAS: 939-38-8
Formula: C₉H₁₄ClNO₂
MW: 203.66 g/mol

VQ-027938

Reference Standard

(S)-Pomalidomide

CAS: 202271-89-4
Formula: C₁₃H₁₁N₃O₄
MW: 273.24 g/mol

VQ-027554

Reference Standard

(S)-Praziquantel

CAS: 57452-97-8
Formula: C₁₉H₂₄N₂O₂
MW: 312.4 g/mol

VQ-041605

Reference Standard

(S)-Propafenone

CAS: 107381-32-8
Formula: C₂₁H₂₇NO₃
MW: 341.4 g/mol

VQ-041712

Reference Standard

(S)-Rabeprazole Sodium Salt

CAS: 171440-19-0
Formula: C₁₈H₂₀N₃NaO₃S
MW: 381.4 g/mol

VQ-043911

Reference Standard

(S)-Rasagiline Mesylate

CAS: 202464-88-8
Formula: C₁₃H₁₇NO₃S
MW: 267.35 g/mol

VQ-033465

Reference Standard

(S)-Ruxolitinib Phosphate

CAS: 2703484-89-1
Formula: C₁₇H₂₁N₆O₄P
MW: 404.4 g/mol

VQ-027789

Reference Standard

(S)-Salbutamol Hydrochloride

CAS: 50293-91-9
Formula: C₁₃H₂₂ClNO₃
MW: 275.77 g/mol

VQ-027975

Reference Standard

(S)-Stiripentol

CAS: 144017-66-3
Formula: C₁₄H₁₈O₃
MW: 234.29 g/mol

VQ-042273

Reference Standard

(S)-Tedizolid

CAS: 1431699-67-0
Formula: C₁₇H₁₅FN₆O₃
MW: 370.3 g/mol

VQ-023843

Reference Standard

(S)-Tenofovir

CAS: 147127-19-3
Formula: C₉H₁₄N₅O₄P
MW: 287.21 g/mol

VQ-034108

Reference Standard

(S)-Tetrahydrocolumbamine

CAS: 483-34-1
Formula: C₂₀H₂₃NO₄
MW: 341.4 g/mol

VQ-040045

Reference Standard

(S)-Vilanterol

CAS: 2514963-34-7
Formula: C₂₄H₃₃Cl₂NO₅
MW: 486.4 g/mol

VQ-024008

Reference Standard

(S)-Viloxazine Hydrochloride

CAS: 56287-61-7
Formula: C₁₃H₂₀ClNO₃
MW: 273.75 g/mol

VQ-034631

Reference Standard

(SS,SS)-Nebivolol

CAS: 119365-28-5
Formula: C₂₂H₂₅F₂NO₄
MW: 405.4 g/mol

VQ-023217

Reference Standard

(Z)-Azoxystrobin

CAS: 143130-94-3
Formula: C₂₂H₁₇N₃O₅
MW: 403.4 g/mol

VQ-027254

Reference Standard

(Z)-Chlorfenvinphos

CAS: 18708-87-7
Formula: C₁₂H₁₄Cl₃O₄P
MW: 359.6 g/mol

VQ-043113

Reference Standard

(Z)-Eprosartan

CAS: 148674-39-9
Formula: C₂₃H₂₄N₂O₄S
MW: 424.5 g/mol

VQ-037037

Reference Standard

(Z)-Istradefylline

CAS: 606080-73-3
Formula: C₂₀H₂₄N₄O₄
MW: 384.4 g/mol

VQ-022881

Reference Standard

(Z)-Ixabepilone

CAS: 1220999-07-4
Formula: C₂₇H₄₂N₂O₅S
MW: 506.7 g/mol

VQ-031354

Reference Standard

(Z)-Naftifine

CAS: 65473-08-7
Formula: C₂₁H₂₁N
MW: 287.4 g/mol

VQ-032055

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API Reference Standards

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