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)-Alogliptin Hydrochloride

CAS: 2749805-81-8
Formula: C₁₈H₂₂ClN₅O₂
MW: 375.85 g/mol

VQ-029072

Reference Standard

(S)-Amlodipine

CAS: 103129-82-4
Formula: C₂₀H₂₅ClN₂O₅
MW: 408.9 g/mol

VQ-034780

Reference Standard

(S)-Azelastine Hydrochloride

CAS: 153408-27-6
Formula: C₂₂H₂₅Cl₂N₃O
MW: 418.4 g/mol

VQ-029327

Reference Standard

(S)-Baclofen

CAS: 66514-99-6
Formula: C₁₀H₁₂ClNO₂
MW: 213.66 g/mol

VQ-032982

Reference Standard

(S)-Bicalutamide

CAS: 113299-38-0
Formula: C₁₈H₁₄F₄N₂O₄S
MW: 430.4 g/mol

VQ-029431

Reference Standard

(S)-Bupropion

CAS: 324548-43-8
Formula: C₁₃H₁₈ClNO
MW: 239.74 g/mol

VQ-035533

Reference Standard

(S)-Cefpodoxime proxetil

CAS: 112345-71-8
Formula: C₂₁H₂₇N₅O₉S₂
MW: 557.59 g/mol

VQ-029702

Reference Standard

(S)-Cetirizine Dihydrochloride

CAS: 163837-48-7
Formula: C₂₁H₂₇Cl₃N₂O₃
MW: 461.8 g/mol

VQ-026431

Reference Standard

(S)-Crizotinib

CAS: 1374356-45-2
Formula: C₂₁H₂₂Cl₂FN₅O
MW: 450.3 g/mol

VQ-022264

Reference Standard

(S)-Erdosteine

CAS: 159701-33-4
Formula: C₈H₁₁NO₄S₂
MW: 249.3 g/mol

VQ-037041

Reference Standard

(S)-Etodolac

CAS: 87249-11-4
Formula: C₁₇H₂₁NO₃
MW: 287.35 g/mol

VQ-025661

Reference Standard

(S)-Fesoterodine Fumarate

CAS: 1431511-18-0
Formula: C₃₀H₄₁NO₇
MW: 527.6 g/mol

VQ-025766

Reference Standard

(S)-Fesoterodine Hydrochloride

CAS: 1294517-14-8
Formula: C₂₆H₃₇NO₃
MW: 411.6 g/mol

VQ-037241

Reference Standard

(S)-Fezolinetant

CAS: 2650136-83-5
Formula: C₁₆H₁₅FN₆OS
MW: 358.4 g/mol

VQ-025775

Reference Standard

(S)-Fluoxetine Hydrochloride

CAS: 114247-06-2
Formula: C₁₇H₁₉ClF₃NO
MW: 345.8 g/mol

VQ-037333

Reference Standard

(S)-Flurbiprofen

CAS: 51543-39-6
Formula: C₁₅H₁₃FO₂
MW: 244.26 g/mol

VQ-037363

Reference Standard

(S)-Frovatriptan

CAS: 158930-18-8
Formula: C₁₄H₁₇N₃O
MW: 243.3 g/mol

VQ-030892

Reference Standard

(S)-Indacaterol

CAS: 1235445-80-3
Formula: C₂₄H₂₉ClN₂O₃
MW: 428.9 g/mol

VQ-022843

Reference Standard

(S)-Indacaterol Acetate

CAS: 2219344-56-4
Formula: C₂₆H₃₀N₂O₄.C₂H₄O₂
MW: 494.58 g/mol

VQ-048678

Reference Standard

(S)-Indoxacarb

CAS: 173584-44-6
Formula: C₂₂H₁₇ClF₃N₃O₇
MW: 527.8 g/mol

VQ-037708

Reference Standard

(S)-Ketorolac

CAS: 66635-92-5
Formula: C₁₅H₁₃NO₃
MW: 255.27 g/mol

VQ-037818

Reference Standard

(S)-Laudanosine

CAS: 2688-77-9
Formula: C₂₁H₂₇NO₄
MW: 357.4 g/mol

VQ-035848

Reference Standard

(S)-Lercanidipine Hydrochloride

CAS: 184866-29-3
Formula: C₃₆H₄₂ClN₃O₆
MW: 648.2 g/mol

VQ-031490

Reference Standard

(S)-Lorlatinib

CAS: 1454847-76-7
Formula: C₂₁H₁₉FN₆O₂
MW: 406.4 g/mol

VQ-031639

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API Reference Standards

Need a price, a spec or a custom compound?