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

Rosiglitazone

CAS: 122320-73-4
Formula: C₁₈H₁₉N₃O₃S
MW: 357.4 g/mol

VQ-033652

Reference Standard

Rosiglitazone maleate

CAS: 155141-29-0
Formula: C₂₂H₂₃N₃O₇S
MW: 473.5 g/mol

VQ-042004

Reference Standard

Rosuvastatin

CAS: 287714-41-4
Formula: C₂₂H₂₈FN₃O₆S
MW: 481.5 g/mol

In stock

Reference Standard

Rosuvastatin Calcium

CAS: 147098-20-2
Formula: C₄₄H₅₄CaF₂N₆O₁₂S₂
MW: 1001.1 g/mol

VQ-023677

Reference Standard

Rosuvastatin Sodium

CAS: 147098-18-8
Formula: C₂₂H₂₇FN₃NaO₆S
MW: 503.5 g/mol

VQ-027899

Reference Standard

Roxadustat

CAS: 808118-40-3
Formula: C₁₉H₁₆N₂O₅
MW: 352.3 g/mol

In stock

Reference Standard

Roxatidine

CAS: 78273-80-0
Formula: C₁₇H₂₆N₂O₃
MW: 306.4 g/mol

VQ-042023

Reference Standard

Roxithromycin

CAS: 80214-83-1
Formula: C₄₁H₇₆N₂O₁₅
MW: 837 g/mol

In stock

Reference Standard

Rubusoside

CAS: 64849-39-4
Formula: C₃₂H₅₀O₁₃
MW: 642.7 g/mol

VQ-039045

Reference Standard

Rucaparib

CAS: 283173-50-2
Formula: C₁₉H₁₈FN₃O
MW: 323.4 g/mol

VQ-023699

Reference Standard

Rucaparib (Camsylate)

CAS: 1859053-21-6
Formula: C₂₉H₃₄FN₃O₅S
MW: 555.7 g/mol

VQ-042039

Reference Standard

Rufinamide

CAS: 106308-44-5
Formula: C₁₀H₈F₂N₄O
MW: 238.19 g/mol

VQ-033697

Reference Standard

Rupatadine Fumarate

CAS: 182349-12-8
Formula: C₃₀H₃₀ClN₃O₄
MW: 532 g/mol

VQ-027947

Reference Standard

Rupatidine

CAS: 158876-82-5
Formula: C₂₆H₂₆ClN₃
MW: 416 g/mol

VQ-033702

Reference Standard

Rutin

CAS: 153-18-4
Formula: C₂₇H₃₀O₁₆
MW: 610.5 g/mol

VQ-033705

Reference Standard

Ruxolitinib Hemifumarate

CAS: 2803478-47-7
Formula: C₃₈H₄₀N₁₂O₄
MW: 728.8 g/mol

VQ-007734

Reference Standard

Ruxolitinib Hydrochloride

CAS: 1912373-07-9
Formula: C₁₇H₁₉ClN₆
MW: 342.8 g/mol

VQ-042044

Reference Standard

Ruxolitinib Phosphate

CAS: 1092939-17-7
Formula: C₁₇H₂₁N₆O₄P
MW: 404.4 g/mol

In stock

Reference Standard

Ruxolitinib WS

CAS: 941678-49-5
Formula: C₁₇H₁₈N₆
MW: 306.4 g/mol

In stock

Reference Standard

S-(-)-Etomidate

CAS: 56649-47-9
Formula: C₁₄H₁₆N₂O₂
MW: 244.29 g/mol

VQ-037151

Reference Standard

Sabinene

CAS: 3387-41-5
Formula: C₁₀H₁₆
MW: 136.23 g/mol

VQ-042052

Reference Standard

Saccharin Sodium Hydrate

CAS: 82385-42-0
Formula: C₇H₆NNaO₄S
MW: 223.18 g/mol

VQ-042053

Reference Standard

Sacubitril Tert Butylamine

CAS: 1924620-56-3
Formula: C₂₄H₂₉NO₅ : C₄H₁₁N
MW: 470.61 g/mol

VQ-042066

Reference Standard

Sacubitril-Valsartan Trisodium Salt

CAS: 1898188-76-5
Formula: C₄₈H₅₅N₆Na₃O₈
MW: 913 g/mol

VQ-042056

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API Reference Standards

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