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

Spectinomycin Sulfate Tetrahydrate

CAS: 64058-48-6
Formula: C₁₄H₃₄N₂O₁₅S
MW: 502.5 g/mol

VQ-042242

Reference Standard

Spilanthol

CAS: 25394-57-4
Formula: C₁₄H₂₃NO
MW: 221.34 g/mol

VQ-033936

Reference Standard

Spinetoram J

CAS: 187166-40-1
Formula: C₄₂H₆₉NO₁₀
MW: 748 g/mol

VQ-042248

Reference Standard

Spinosyn A

CAS: 131929-60-7
Formula: C₄₁H₆₅NO₁₀
MW: 732 g/mol

VQ-039285

Reference Standard

Spinosyn J

CAS: 131929-67-4
Formula: C₄₀H₆₃NO₁₀
MW: 717.9 g/mol

VQ-042254

Reference Standard

Spinosyn L

CAS: 149092-01-3
Formula: C₄₁H₆₅NO₁₀
MW: 732 g/mol

VQ-042257

Reference Standard

Spinosyn Q

CAS: 149438-28-8
Formula: C₄₁H₆₅NO₁₀
MW: 732 g/mol

VQ-042258

Reference Standard

Spiramycin Adipate

CAS: 68880-55-7
Formula: C₄₉H₈₄N₂O₁₈
MW: 989.2 g/mol

VQ-033938

Reference Standard

Spirodiclofen

CAS: 148477-71-8
Formula: C₂₁H₂₄Cl₂O₄
MW: 411.3 g/mol

VQ-038925

Reference Standard

Spirotetramat

CAS: 203313-25-1
Formula: C₂₁H₂₇NO₅
MW: 373.4 g/mol

VQ-042267

Reference Standard

Stearidonic Acid

CAS: 20290-75-9
Formula: C₁₈H₂₈O₂
MW: 276.4 g/mol

VQ-037645

Reference Standard

Sterigmatocystin

CAS: 10048-13-2
Formula: C₁₈H₁₂O₆
MW: 324.3 g/mol

VQ-039072

Reference Standard

Steviol

CAS: 471-80-7
Formula: C₂₀H₃₀O₃
MW: 318.4 g/mol

VQ-039821

Reference Standard

Stiripentol

CAS: 49763-96-4
Formula: C₁₄H₁₈O₃
MW: 234.29 g/mol

VQ-028121

Reference Standard

Streptomycin A

CAS: 57-92-1
Formula: C₂₁H₃₉N₇O₁₂
MW: 581.6 g/mol

VQ-033951

Reference Standard

Strontium Ranelate

CAS: 135459-87-9
Formula: C₁₂H₆N₂O₈SSr₂
MW: 513.5 g/mol

VQ-042279

Reference Standard

Styrene

CAS: 100-42-5
Formula: C₈H₈
MW: 104.15 g/mol

VQ-007765

Reference Standard

Succinylacetone

CAS: 51568-18-4
Formula: C₇H₁₀O₄
MW: 158.15 g/mol

VQ-040088

Reference Standard

Sucralfate

CAS: 54182-58-0
Formula: C₁₂H₅₄Al₁₆O₇₅S₈
MW: 2086.72 g/mol

VQ-033954

Reference Standard

Sudan Orange G

CAS: 2051-85-6
Formula: C₁₂H₁₀N₂O₂
MW: 214.22 g/mol

VQ-038901

Reference Standard

Sugammadex WS

CAS: 343306-71-8
Formula: C₇₂H₁₁₂O₄₈S₈
MW: 2002.2 g/mol

In stock

Reference Standard

Sulbactam Pivoxil

CAS: 69388-79-0
Formula: C₁₄H₂₁NO₇S
MW: 347.39 g/mol

VQ-042289

Reference Standard

Sulbutiamine

CAS: 3286-46-2
Formula: C₃₂H₄₆N₈O₆S₂
MW: 702.9 g/mol

VQ-033969

Reference Standard

Sulfabenzamide

CAS: 127-71-9
Formula: C₁₃H₁₂N₂O₃S
MW: 276.31 g/mol

VQ-039300

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API Reference Standards

Need a price, a spec or a custom compound?