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Impurities & Reference Standards

API Impurities

Source 1942 api impurities for research, QC and production, documented with COA and SDS.

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Reference Standard

Nicorandil Dimer Trifluoroacetate

Nicorandil Dimer Trifluoroacetate

CAS: 2758197-72-5
Formula: C₁₈H₁₈F₃N₅O₇
MW: 473.37 g/mol

VQ-045121

Reference Standard

Nicorandil Trimer chemical structure

Nicorandil Trimer

CAS: 2365474-05-9
Formula: C₂₄H₂₇N₇O₆⁺2
MW: 509.5 g/mol

VQ-032126

Reference Standard

Nicotiflorin chemical structure

CAS: 17650-84-9
Formula: C₂₇H₃₀O₁₅
MW: 594.5 g/mol

VQ-031364

Reference Standard

Nicotine Related Compound 4 chemical structure

Nicotine Related Compound 4

CAS: 3222-49-9
Formula: C₇H₇NO₂
MW: 137.14 g/mol

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Reference Standard

Nicotine Related Compound 4 (Hydrochloride) chemical structure

Nicotine Related Compound 4 (Hydrochloride)

CAS: 40473-04-9
Formula: C₇H₈ClNO₂
MW: 173.6 g/mol

VQ-005355

Reference Standard

Nicotine Related Compound 4 (Sodium)

Nicotine Related Compound 4 (Sodium)

CAS: 117213-50-0
Formula: C₇H₇NO₂.Na
MW: 160.13 g/mol

VQ-005356

Reference Standard

Nifedipine Monoamide chemical structure

Nifedipine Monoamide

CAS: 114709-68-1
Formula: C₁₆H₁₇N₃O₅
MW: 331.32 g/mol

VQ-023253

Reference Standard

Nifedipine Pyrimidine impurity chemical structure

Nifedipine Pyrimidine impurity

CAS: 108139-78-2
Formula: C₁₉H₁₈N₄O₆
MW: 398.4 g/mol

VQ-032149

Reference Standard

Nifedipine Pyrimidine Impurity (Cis-isomer) chemical structure

Nifedipine Pyrimidine Impurity (Cis-isomer)

CAS: 80742-11-6
Formula: C₁₉H₁₈N₄O₆
MW: 398.4 g/mol

VQ-032150

Reference Standard

Nifuratel - Impurity B chemical structure

Nifuratel - Impurity B

CAS: 736-53-8
Formula: C₁₀H₆N₄O₆
MW: 278.18 g/mol

VQ-043243

Reference Standard

Nilotinib 3-Pyridinyl Impurity chemical structure

Nilotinib 3-Pyridinyl Impurity

CAS: 66521-66-2
Formula: C₉H₈N₄
MW: 172.19 g/mol

VQ-032158

Reference Standard

Nilotinib Boc Imidazole Impurity chemical structure

Nilotinib Boc Imidazole Impurity

CAS: 641571-14-4
Formula: C₁₆H₁₈F₃N₃O₂
MW: 341.33 g/mol

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Reference Standard

Nilotinib Ethyl Impurity chemical structure

Nilotinib Ethyl Impurity

CAS: 641569-97-3
Formula: C₁₉H₁₈N₄O₂
MW: 334.4 g/mol

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Reference Standard

Nilotinib Impurity 11 chemical structure

Nilotinib Impurity 11

CAS: 916975-92-3
Formula: C₁₁H₈F₃N₃O₂
MW: 271.19 g/mol

In stock

Reference Standard

Nilotinib Impurity 18 chemical structure

Nilotinib Impurity 18

CAS: 2469039-94-7
Formula: C₂₈H₂₁ClF₃N₇O
MW: 564 g/mol

In stock

Reference Standard

Nilotinib Impurity 26 chemical structure

Nilotinib Impurity 26

CAS: 1807608-52-1
Formula: C₂₈H₂₂F₃N₇O₂
MW: 545.5 g/mol

VQ-049244

Reference Standard

Nilotinib Impurity 4 chemical structure

Nilotinib Impurity 4

CAS: 641571-16-6
Formula: C₁₁H₁₀F₃N₃
MW: 241.21 g/mol

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Reference Standard

Nilotinib Impurity 52 chemical structure

Nilotinib Impurity 52

CAS: 207986-20-7
Formula: C₈H₅F₄NO
MW: 207.12 g/mol

VQ-049247

Reference Standard

Nilotinib Impurity 55 chemical structure

Nilotinib Impurity 55

CAS: 157383-41-0
Formula: C₁₀H₁₀F₃NO₂
MW: 233.19 g/mol

VQ-049248

Reference Standard

Nilotinib Impurity 61

Nilotinib Impurity 61

CAS: 2729981-89-7
Formula: C₁₇H₁₄N₄O₃
MW: 322.32 g/mol

VQ-038644

Reference Standard

Nilotinib Impurity A chemical structure

Nilotinib Impurity A

CAS: 641571-11-1
Formula: C₁₁H₁₀F₃N₃
MW: 241.21 g/mol

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Reference Standard

Nilotinib Impurity A chemical structure

Nilotinib Impurity A

CAS: 1345336-53-9
Formula: C₂₀H₁₉F₃N₆O
MW: 416.4 g/mol

VQ-038638

Reference Standard

Nilotinib Impurity B chemical structure

Nilotinib Impurity B

CAS: 18595-18-1
Formula: C₉H₁₁NO₂
MW: 165.19 g/mol

In stock

Reference Standard

Nilotinib Impurity C chemical structure

Nilotinib Impurity C

CAS: 2458-12-0
Formula: C₈H₉NO₂
MW: 151.16 g/mol

In stock

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