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

Neoxanthin

CAS: 14660-91-4
Formula: C₄₀H₅₆O₄
MW: 600.9 g/mol

VQ-040595

Reference Standard

Nepafenac

CAS: 78281-72-8
Formula: C₁₅H₁₄N₂O₂
MW: 254.28 g/mol

In stock

Reference Standard

Nerandomilast

CAS: 1423719-30-5
Formula: C₂₀H₂₅ClN₆O₂S
MW: 449 g/mol

VQ-045231

Reference Standard

Neratinib Maleate

CAS: 915942-22-2
Formula: C₃₄H₃₃ClN₆O₇
MW: 673.1 g/mol

In stock

Reference Standard

Neratinib WS

CAS: 698387-09-6
Formula: C₃₀H₂₉ClN₆O₃
MW: 557 g/mol

VQ-007609

Reference Standard

Netarsudil

CAS: 1254032-66-0
Formula: C₂₈H₂₇N₃O₃
MW: 453.5 g/mol

In stock

Reference Standard

Netilmicin Sulfate

CAS: 56391-57-2
Formula: C₄₂H₉₂N₁₀O₃₄S₅
MW: 1441.6 g/mol

VQ-026876

Reference Standard

Netobimin

CAS: 88255-01-0
Formula: C₁₄H₂₀N₄O₇S₂
MW: 420.5 g/mol

VQ-049215

Reference Standard

Netupitant

CAS: 290297-26-6
Formula: C₃₀H₃₂F₆N₄O
MW: 578.6 g/mol

VQ-026878

Reference Standard

Nevirapine

CAS: 129618-40-2
Formula: C₁₅H₁₄N₄O
MW: 266.3 g/mol

VQ-023237

Reference Standard

Nicarbazine

CAS: 330-95-0
Formula: C₁₉H₁₈N₆O₆
MW: 426.4 g/mol

VQ-027090

Reference Standard

Nicardipine

CAS: 55985-32-5
Formula: C₂₆H₂₉N₃O₆
MW: 479.5 g/mol

VQ-032122

Reference Standard

Nicardipine Hydrochloride

CAS: 54527-84-3
Formula: C₂₆H₃₀ClN₃O₆
MW: 516 g/mol

VQ-032113

Reference Standard

Nicergoline

CAS: 27848-84-6
Formula: C₂₄H₂₆BrN₃O₃
MW: 484.4 g/mol

VQ-023240

Reference Standard

Nicoboxil

CAS: 13912-80-6
Formula: C₁₂H₁₇NO₃
MW: 223.27 g/mol

VQ-038605

Reference Standard

Nicorandil Nitrate

CAS: 65141-58-4
Formula: C₈H₁₀N₄O₇
MW: 274.19 g/mol

VQ-032125

Reference Standard

Nicosulfuron

CAS: 111991-09-4
Formula: C₁₅H₁₈N₆O₆S
MW: 410.4 g/mol

VQ-038606

Reference Standard

Nicotinamide

CAS: 98-92-0
Formula: C₆H₆N₂O
MW: 122.12 g/mol

In stock

Reference Standard

Nicotine Ditartrate Dihydrate

CAS: 6019-06-3
Formula: C₁₈H₃₀N₂O₁₄
MW: 498.4 g/mol

VQ-049235

Reference Standard

Niflumic acid

CAS: 4394-00-7
Formula: C₁₃H₉F₃N₂O₂
MW: 282.22 g/mol

VQ-026901

Reference Standard

Nifuratel

CAS: 4936-47-4
Formula: C₁₀H₁₁N₃O₅S
MW: 285.28 g/mol

VQ-026904

Reference Standard

Nifuroxazide

CAS: 965-52-6
Formula: C₁₂H₉N₃O₅
MW: 275.22 g/mol

VQ-023255

Reference Standard

Nifursol

CAS: 16915-70-1
Formula: C₁₂H₇N₅O₉
MW: 365.21 g/mol

VQ-038636

Reference Standard

Nifurtimox

CAS: 23256-30-6
Formula: C₁₀H₁₃N₃O₅S
MW: 287.29 g/mol

VQ-032154

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API Reference Standards

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