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

Cefdinir

CAS: 91832-40-5
Formula: C₁₄H₁₃N₅O₅S₂
MW: 395.4 g/mol

VQ-024842

Reference Standard

Cefditoren

CAS: 104145-95-1
Formula: C₁₉H₁₈N₆O₅S₃
MW: 506.6 g/mol

VQ-036194

Reference Standard

Cefepime

CAS: 88040-23-7
Formula: C₁₉H₂₄N₆O₅S₂
MW: 480.6 g/mol

VQ-024848

Reference Standard

Cefepime Hydrochloride

CAS: 107648-80-6
Formula: C₁₉H₂₆Cl₂N₆O₅S₂
MW: 553.5 g/mol

VQ-044661

Reference Standard

Cefetamet Pivoxil

CAS: 65243-33-6
Formula: C₂₀H₂₅N₅O₇S₂
MW: 511.6 g/mol

VQ-029690

Reference Standard

Cefixime

CAS: 79350-37-1
Formula: C₁₆H₁₅N₅O₇S₂
MW: 453.5 g/mol

VQ-022085

Reference Standard

Cefmetazole

CAS: 56796-20-4
Formula: C₁₅H₁₇N₇O₅S₃
MW: 471.5 g/mol

VQ-029693

Reference Standard

Cefmetazole Sodium

CAS: 56796-39-5
Formula: C₁₅H₁₆N₇NaO₅S₃
MW: 493.5 g/mol

VQ-043103

Reference Standard

Cefminox

CAS: 84305-41-9
Formula: C₁₆H₂₁N₇O₇S₃
MW: 519.6 g/mol

VQ-047712

Reference Standard

Cefodizime

CAS: 69739-16-8
Formula: C₂₀H₂₀N₆O₇S₄
MW: 584.7 g/mol

VQ-035062

Reference Standard

Cefoperazone dihydrate

CAS: 113826-44-1
Formula: C₂₅H₃₁N₉O₁₀S₂
MW: 681.7 g/mol

VQ-029694

Reference Standard

Cefoperazone sodium

CAS: 62893-20-3
Formula: C₂₅H₂₆N₉NaO₈S₂
MW: 667.7 g/mol

VQ-029695

Reference Standard

Cefotetan

CAS: 69712-56-7
Formula: C₁₇H₁₇N₇O₈S₄
MW: 575.6 g/mol

VQ-024857

Reference Standard

Cefotiam Dihydrochloride

CAS: 66309-69-1
Formula: C₁₈H₂₅Cl₂N₉O₄S₃
MW: 598.6 g/mol

VQ-025114

Reference Standard

Cefovecin Sodium

CAS: 141195-77-9
Formula: C₁₇H₁₈N₅NaO₆S₂
MW: 475.5 g/mol

VQ-024858

Reference Standard

Cefoxitin

CAS: 35607-66-0
Formula: C₁₆H₁₇N₃O₇S₂
MW: 427.5 g/mol

VQ-022094

Reference Standard

Cefoxitin sodium

CAS: 33564-30-6
Formula: C₁₆H₁₆N₃NaO₇S₂
MW: 449.4 g/mol

VQ-024861

Reference Standard

Cefpirome

CAS: 84957-29-9
Formula: C₂₂H₂₂N₆O₅S₂
MW: 514.6 g/mol

VQ-036199

Reference Standard

Cefpirome Sulfate

CAS: 98753-19-6
Formula: C₂₂H₂₄N₆O₉S₃
MW: 612.7 g/mol

VQ-024863

Reference Standard

Cefprozil

CAS: 92665-29-7
Formula: C₁₈H₁₉N₃O₅S
MW: 389.4 g/mol

VQ-036200

Reference Standard

Cefprozil monohydrate

CAS: 121123-17-9
Formula: C₁₈H₂₁N₃O₆S
MW: 407.4 g/mol

VQ-024866

Reference Standard

Cefprozil, (Z)

CAS: 114876-72-1
Formula: C₁₈H₂₁N₃O₆S
MW: 407.4 g/mol

VQ-029704

Reference Standard

Cefquinome

CAS: 84957-30-2
Formula: C₂₃H₂₄N₆O₅S₂
MW: 528.6 g/mol

VQ-036202

Reference Standard

Cefquinome Sulphate

CAS: 118443-89-3
Formula: C₂₃H₂₆N₆O₉S₃
MW: 626.7 g/mol

VQ-024868

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API Reference Standards

Need a price, a spec or a custom compound?