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

Nigericin Sodium Salt

CAS: 28643-80-3
Formula: C₄₀H₆₇NaO₁₁
MW: 746.9 g/mol

VQ-049243

Reference Standard

Nilotinib

CAS: 641571-10-0
Formula: C₂₈H₂₂F₃N₇O
MW: 529.5 g/mol

In stock

Reference Standard

Nilotinib Hydrochloride

CAS: 923288-95-3
Formula: C₂₈H₂₃ClF₃N₇O
MW: 566 g/mol

VQ-007613

Reference Standard

Nilotinib hydrochloride dihydrate

CAS: 923289-71-8
Formula: C₂₈H₂₇ClF₃N₇O₃
MW: 602 g/mol

VQ-038641

Reference Standard

Nilutamide

CAS: 63612-50-0
Formula: C₁₂H₁₀F₃N₃O₄
MW: 317.22 g/mol

VQ-032160

Reference Standard

Nimesulide

CAS: 51803-78-2
Formula: C₁₃H₁₂N₂O₅S
MW: 308.31 g/mol

In stock

Reference Standard

Nimesulide Potassium Salt

CAS: 161639-95-8
Formula: C₁₃H₁₂N₂O₅S.K
MW: 347.41 g/mol

VQ-007615

Reference Standard

Nimesulide Sodium Salt

CAS: 161639-92-5
Formula: C₁₃H₁₂N₂O₅S.Na
MW: 331.3 g/mol

VQ-007616

Reference Standard

Nimodipine

CAS: 66085-59-4
Formula: C₂₁H₂₆N₂O₇
MW: 418.4 g/mol

In stock

Reference Standard

Nimorazole

CAS: 6506-37-2
Formula: C₉H₁₄N₄O₃
MW: 226.23 g/mol

VQ-032168

Reference Standard

Nintedanib

CAS: 656247-17-5
Formula: C₃₁H₃₃N₅O₄
MW: 539.6 g/mol

VQ-007618

Reference Standard

Niraparib

CAS: 1038915-60-4
Formula: C₁₉H₂₀N₄O
MW: 320.4 g/mol

In stock

Reference Standard

Nirmatrelvir

CAS: 2628280-40-8
Formula: C₂₃H₃₂F₃N₅O₄
MW: 499.5 g/mol

VQ-032175

Reference Standard

Nirogacestat

CAS: 1290543-63-3
Formula: C₂₇H₄₁F₂N₅O
MW: 489.6 g/mol

VQ-007620

Reference Standard

Nitenpyram

CAS: 150824-47-8
Formula: C₁₁H₁₅ClN₄O₂
MW: 270.71 g/mol

VQ-032183

Reference Standard

Nitisinone

CAS: 104206-65-7
Formula: C₁₄H₁₀F₃NO₅
MW: 329.23 g/mol

VQ-032186

Reference Standard

Nitrendipine

CAS: 39562-70-4
Formula: C₁₈H₂₀N₂O₆
MW: 360.4 g/mol

VQ-023271

Reference Standard

Nitrofurantoin

CAS: 67-20-9
Formula: C₈H₆N₄O₅
MW: 238.16 g/mol

VQ-026933

Reference Standard

Nitrofurantoin Monohydrate

CAS: 17140-81-7
Formula: C₈H₈N₄O₆
MW: 256.17 g/mol

VQ-032191

Reference Standard

Nitroscanate

CAS: 19881-18-6
Formula: C₁₃H₈N₂O₃S
MW: 272.28 g/mol

VQ-032774

Reference Standard

Nitroxinil

CAS: 1689-89-0
Formula: C₇H₃IN₂O₃
MW: 290.01 g/mol

VQ-032194

Reference Standard

Nizatidine

CAS: 76963-41-2
Formula: C₁₂H₂₁N₅O₂S₂
MW: 331.5 g/mol

In stock

Reference Standard

Nomegestrol

CAS: 58691-88-6
Formula: C₂₁H₂₈O₃
MW: 328.4 g/mol

VQ-023274

Reference Standard

Nomegestrol acetate

CAS: 58652-20-3
Formula: C₂₃H₃₀O₄
MW: 370.5 g/mol

VQ-023275

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API Reference Standards

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