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

Queuine

CAS: 72496-59-4
Formula: C₁₂H₁₅N₅O₃
MW: 277.28 g/mol

VQ-043726

Reference Standard

Quinapril

CAS: 85441-61-8
Formula: C₂₅H₃₀N₂O₅
MW: 438.5 g/mol

VQ-033408

Reference Standard

Quinapril Hydrochloride

CAS: 82586-55-8
Formula: C₂₅H₃₁ClN₂O₅
MW: 475 g/mol

VQ-023594

Reference Standard

Quinapyramine Chloride Hydrochloride

CAS: 23609-65-6
Formula: C₁₇H₂₂Cl₂N₆
MW: 381.3 g/mol

VQ-033411

Reference Standard

Quinapyramine Sulfate

CAS: 3270-78-8
Formula: C₁₉H₂₈N₆O₈S₂
MW: 532.6 g/mol

VQ-044787

Reference Standard

Quinfamide

CAS: 62265-68-3
Formula: C₁₆H₁₃Cl₂NO₄
MW: 354.2 g/mol

VQ-033398

Reference Standard

Quinidine Gluconate

CAS: 7054-25-3
Formula: C₂₆H₃₆N₂O₉
MW: 520.6 g/mol

VQ-041802

Reference Standard

Quinidine sulphate

CAS: 50-54-4
Formula: C₄₀H₅₀N₄O₈S
MW: 746.9 g/mol

VQ-041801

Reference Standard

Quinine Bisulfate

CAS: 549-56-4
Formula: C₂₀H₂₆N₂O₆S
MW: 422.5 g/mol

VQ-041800

Reference Standard

Quinine Hydrochloride Dihydrate

CAS: 6119-47-7
Formula: C₂₀H₂₉ClN₂O₄
MW: 396.9 g/mol

VQ-033413

Reference Standard

Quinine Sulfate Dihydrate

CAS: 6119-70-6
Formula: C₄₀H₅₄N₄O₁₀S
MW: 782.9 g/mol

VQ-019507

Reference Standard

Quinotoxine Hydrochloride

CAS: 52211-63-9
Formula: C₂₀H₂₅ClN₂O₂
MW: 360.9 g/mol

VQ-041804

Reference Standard

Quizartinib

CAS: 950769-58-1
Formula: C₂₉H₃₂N₆O₄S
MW: 560.7 g/mol

VQ-033414

Reference Standard

Rabeprazole

CAS: 117976-89-3
Formula: C₁₈H₂₁N₃O₃S
MW: 359.4 g/mol

VQ-007689

Reference Standard

Rabeprazole Sodium

CAS: 117976-90-6
Formula: C₁₈H₂₀N₃NaO₃S
MW: 381.4 g/mol

In stock

Reference Standard

Rabeprazole Sodium Hydrate

CAS: 1033853-22-3
Formula: C₁₈H₂₂N₃NaO₄S
MW: 399.4 g/mol

In stock

Reference Standard

Rabeprazole Sodium Hydrate

CAS: 891191-56-3
Formula: C₁₈H₂₂N₃NaO₄S
MW: 399.4 g/mol

VQ-033417

Reference Standard

rac Normetanephrine Hydrochloride

CAS: 1011-74-1
Formula: C₉H₁₄ClNO₃
MW: 219.66 g/mol

VQ-038687

Reference Standard

rac Pimobendan

CAS: 74150-27-9
Formula: C₁₉H₁₈N₄O₂
MW: 334.4 g/mol

VQ-023493

Reference Standard

rac-Moxifloxacin

CAS: 354812-41-2
Formula: C₂₁H₂₄FN₃O₄
MW: 401.4 g/mol

VQ-049163

Reference Standard

Ractopamine Hydrochloride

CAS: 90274-24-1
Formula: C₁₈H₂₄ClNO₃
MW: 337.8 g/mol

VQ-033422

Reference Standard

Raloxifene

CAS: 84449-90-1
Formula: C₂₈H₂₇NO₄S
MW: 473.6 g/mol

VQ-007692

Reference Standard

Raloxifene Hydrochloride

CAS: 82640-04-8
Formula: C₂₈H₂₈ClNO₄S
MW: 510 g/mol

VQ-007693

Reference Standard

Raltegravir

CAS: 518048-05-0
Formula: C₂₀H₂₁FN₆O₅
MW: 444.4 g/mol

VQ-033426

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API Reference Standards

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