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

Danicopan

CAS: 1903768-17-1
Formula: C₂₆H₂₃BrFN₇O₃
MW: 580.4 g/mol

VQ-030011

Reference Standard

Danofloxacin

CAS: 112398-08-0
Formula: C₁₉H₂₀FN₃O₃
MW: 357.4 g/mol

VQ-030013

Reference Standard

Danofloxacin Mesylate

CAS: 119478-55-6
Formula: C₂₀H₂₄FN₃O₆S
MW: 453.5 g/mol

VQ-036514

Reference Standard

Danoprevir

CAS: 850876-88-9
Formula: C₃₅H₄₆FN₅O₉S
MW: 731.8 g/mol

VQ-047925

Reference Standard

Dantrolene

CAS: 7261-97-4
Formula: C₁₄H₁₀N₄O₅
MW: 314.25 g/mol

VQ-030014

Reference Standard

Dantrolene Sodium

CAS: 14663-23-1
Formula: C₁₄H₉N₄NaO₅
MW: 336.23 g/mol

VQ-036515

Reference Standard

Dapagliflozin

CAS: 461432-26-8
Formula: C₂₁H₂₅ClO₆
MW: 408.9 g/mol

VQ-007406

Reference Standard

Dapagliflozin Citrate

CAS: 1848226-91-4
Formula: C₂₇H₃₃ClO₁₃
MW: 601 g/mol

VQ-045005

Reference Standard

Dapivirine

CAS: 244767-67-7
Formula: C₂₀H₁₉N₅
MW: 329.4 g/mol

VQ-030029

Reference Standard

Dapoxetine Hydrochloride

CAS: 129938-20-1
Formula: C₂₁H₂₄ClNO
MW: 341.9 g/mol

VQ-025180

Reference Standard

Daprodustat

CAS: 960539-70-2
Formula: C₁₉H₂₇N₃O₆
MW: 393.4 g/mol

VQ-025185

Reference Standard

Dapsone

CAS: 80-08-0
Formula: C₁₂H₁₂N₂O₂S
MW: 248.3 g/mol

In stock

Reference Standard

Daridorexant

CAS: 1505484-82-1
Formula: C₂₃H₂₃ClN₆O₂
MW: 450.9 g/mol

VQ-030047

Reference Standard

Daridorexant hydrochloride

CAS: 1792993-84-0
Formula: C₂₃H₂₄Cl₂N₆O₂
MW: 487.4 g/mol

VQ-036555

Reference Standard

Darifenacin

CAS: 133099-04-4
Formula: C₂₈H₃₀N₂O₂
MW: 426.5 g/mol

VQ-030048

Reference Standard

Darifenacin Hydrobromide

CAS: 133099-07-7
Formula: C₂₈H₃₁BrN₂O₂
MW: 507.5 g/mol

VQ-030050

Reference Standard

Darifenacin Hydrochloride

CAS: 586346-94-3
Formula: C₂₈H₂₉NO₃
MW: 427.5 g/mol

VQ-044457

Reference Standard

Darigabat

CAS: 1614245-70-3
Formula: C₂₂H₂₁FN₄O₃S
MW: 440.5 g/mol

VQ-040618

Reference Standard

Darolutamide WS

CAS: 1297538-32-9
Formula: C₁₉H₁₉ClN₆O₂
MW: 398.8 g/mol

In stock

Reference Standard

Darunavir

CAS: 206361-99-1
Formula: C₂₇H₃₇N₃O₇S
MW: 547.7 g/mol

VQ-030065

Reference Standard

Darutoside

CAS: 59219-65-7
Formula: C₂₆H₄₄O₈
MW: 484.6 g/mol

VQ-047960

Reference Standard

Dasatinib

CAS: 302962-49-8
Formula: C₂₂H₂₆ClN₇O₂S
MW: 488 g/mol

VQ-007409

Reference Standard

Dasatinib Monohydrate

CAS: 863127-77-9
Formula: C₂₂H₂₈ClN₇O₃S
MW: 506 g/mol

In stock

Reference Standard

Daunorubicin

CAS: 20830-81-3
Formula: C₂₇H₂₉NO₁₀
MW: 527.5 g/mol

VQ-030511

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API Reference Standards

Need a price, a spec or a custom compound?