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

Rivaroxaban WS

CAS: 366789-02-8
Formula: C₁₉H₁₈ClN₃O₅S
MW: 435.9 g/mol

In stock

Reference Standard

Rivastigmine

CAS: 123441-03-2
Formula: C₁₄H₂₂N₂O₂
MW: 250.34 g/mol

VQ-027861

Reference Standard

Rivastigmine Tartrate

CAS: 129101-54-8
Formula: C₁₈H₂₈N₂O₈
MW: 400.4 g/mol

VQ-027860

Reference Standard

Rizatriptan

CAS: 144034-80-0
Formula: C₁₅H₁₉N₅
MW: 269.34 g/mol

VQ-007725

Reference Standard

Rizatriptan

CAS: 174610-17-4
Formula: C₁₅H₁₉N₅
MW: 269.34 g/mol

VQ-041973

Reference Standard

Robenacoxib

CAS: 220991-32-2
Formula: C₁₆H₁₃F₄NO₂
MW: 327.27 g/mol

VQ-027867

Reference Standard

Robenidine Hydrochloride

CAS: 25875-50-7
Formula: C₁₅H₁₄Cl₃N₅
MW: 370.7 g/mol

VQ-041976

Reference Standard

Rocuronium

CAS: 143558-00-3
Formula: C₃₂H₅₃N₂O₄⁺
MW: 529.8 g/mol

VQ-007726

Reference Standard

Rocuronium Bromide

CAS: 119302-91-9
Formula: C₃₂H₅₃BrN₂O₄
MW: 609.7 g/mol

In stock

Reference Standard

Rofecoxib

CAS: 162011-90-7
Formula: C₁₇H₁₄O₄S
MW: 314.4 g/mol

VQ-041981

Reference Standard

Roflumilast

CAS: 162401-32-3
Formula: C₁₇H₁₄Cl₂F₂N₂O₃
MW: 403.2 g/mol

In stock

Reference Standard

Rolapitant

CAS: 552292-08-7
Formula: C₂₅H₂₆F₆N₂O₂
MW: 500.5 g/mol

VQ-041988

Reference Standard

Rolapitant Hydrochloride Hydrate

CAS: 914462-92-3
Formula: C₂₅H₂₉ClF₆N₂O₃
MW: 555 g/mol

VQ-041989

Reference Standard

Rolipram

CAS: 61413-54-5
Formula: C₁₆H₂₁NO₃
MW: 275.34 g/mol

VQ-041990

Reference Standard

Romidepsin

CAS: 128517-07-7
Formula: C₂₄H₃₆N₄O₆S₂
MW: 540.7 g/mol

VQ-027884

Reference Standard

Romifidine

CAS: 65896-16-4
Formula: C₉H₉BrFN₃
MW: 258.09 g/mol

VQ-041991

Reference Standard

Romifidine Hydrochloride

CAS: 65896-14-2
Formula: C₉H₁₀BrClFN₃
MW: 294.55 g/mol

VQ-033638

Reference Standard

Ronidazole

CAS: 7681-76-7
Formula: C₆H₈N₄O₄
MW: 200.15 g/mol

VQ-041992

Reference Standard

Ropinirole

CAS: 91374-21-9
Formula: C₁₆H₂₄N₂O
MW: 260.37 g/mol

VQ-007729

Reference Standard

Ropinirole Hydrochloride

CAS: 91374-20-8
Formula: C₁₆H₂₅ClN₂O
MW: 296.83 g/mol

In stock

Reference Standard

Ropivacaine

CAS: 84057-95-4
Formula: C₁₇H₂₆N₂O
MW: 274.4 g/mol

VQ-042003

Reference Standard

Ropivacaine Hydrochloride

CAS: 98717-15-8
Formula: C₁₇H₂₇ClN₂O
MW: 310.9 g/mol

VQ-035226

Reference Standard

Ropivacaine Hydrochloride Monohydrate

CAS: 132112-35-7
Formula: C₁₇H₂₉ClN₂O₂
MW: 328.9 g/mol

VQ-027897

Reference Standard

Rosavin

CAS: 84954-92-7
Formula: C₂₀H₂₈O₁₀
MW: 428.4 g/mol

VQ-033651

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API Reference Standards

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