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Impurities & Reference Standards

Pharmacopoeial and non-pharmacopoeial impurities, metabolites, nitrosamines and working standards with characterisation data for QC and regulatory work.

28,554products

6sub-categories

2,746in stock

COA + SDSwith every lot

API Impurities 14,252 Pharmacopeial Impurities (EP / USP / BP) 4,401 Nitrosamine Impurities 650 Stable Isotope Labelled Standards (Deuterated, 13C, 15N) 1,612 Metabolites & Degradation Products 4,146 API Reference Standards 3,493

Reference Standard

Amitriptyline N-Glucuronide chemical structure

Amitriptyline N-Glucuronide

CAS: 112806-33-4
Formula: C₂₆H₃₁NO₆
MW: 453.5 g/mol

VQ-035113

Reference Standard

Amitriptyline-d3 Hydrochloride chemical structure

Amitriptyline-d3 Hydrochloride

CAS: 342611-00-1
Formula: C₂₀H₂₄ClN
MW: 316.9 g/mol

VQ-024251

Reference Standard

Amitriptyline-d6 Hydrochloride chemical structure

Amitriptyline-d6 Hydrochloride

CAS: 203645-63-0
Formula: C₂₀H₂₄ClN
MW: 319.9 g/mol

VQ-024250

Reference Standard

Amlodipine 2-Phthalimide chemical structure

Amlodipine 2-Phthalimide

CAS: 140171-49-9
Formula: C₂₉H₂₉ClN₂O₇
MW: 553 g/mol

VQ-035697

Reference Standard

Amlodipine Aspartic Acid Impurity chemical structure

Amlodipine Aspartic Acid Impurity

CAS: 400602-35-9
Formula: C₂₄H₂₉ClN₂O₉
MW: 524.9 g/mol

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Reference Standard

Amlodipine Aspartic Acid Impurity (TFA Salt)

Amlodipine Aspartic Acid Impurity (TFA Salt)

Formula: C₂₄H₂₉ClN₂O₉.C₂HF₃O₂
MW: 638.97 g/mol

VQ-004369

Reference Standard

Amlodipine Azido Impurity chemical structure

Amlodipine Azido Impurity

CAS: 88150-46-3
Formula: C₂₀H₂₃ClN₄O₅
MW: 434.9 g/mol

VQ-021559

Reference Standard

Amlodipine Besylate chemical structure

Amlodipine Besylate

CAS: 111470-99-6
Formula: C₂₆H₃₁ClN₂O₈S
MW: 567.1 g/mol

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Reference Standard

Amlodipine Camsylate chemical structure

Amlodipine Camsylate

CAS: 652969-01-2
Formula: C₃₀H₄₁ClN₂O₉S
MW: 641.2 g/mol

VQ-035703

Reference Standard

Amlodipine Di-Phthalimide Impurity chemical structure

Amlodipine Di-Phthalimide Impurity

CAS: 223734-98-3
Formula: C₃₇H₃₂ClN₃O₈
MW: 682.1 g/mol

VQ-024261

Reference Standard

Amlodipine Diethyl Ester Dimer chemical structure

Amlodipine Diethyl Ester Dimer

CAS: 331258-31-2
Formula: C₂₃H₃₂ClN₃O₆
MW: 482 g/mol

VQ-004370

Reference Standard

Amlodipine Dimer Impurity chemical structure

Amlodipine Dimer Impurity

CAS: 2309467-38-5
Formula: C₄₈H₅₂Cl₂N₄O₁₂
MW: 947.8 g/mol

VQ-047393

Reference Standard

Amlodipine EP Impurity A chemical structure

Amlodipine EP Impurity A

CAS: 88150-62-3
Formula: C₂₈H₂₇ClN₂O₇
MW: 539 g/mol

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Reference Standard

Amlodipine EP Impurity B chemical structure

Amlodipine EP Impurity B

CAS: 721958-72-1
Formula: C₂₉H₃₂ClN₃O₇
MW: 570 g/mol

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Reference Standard

Amlodipine EP Impurity C chemical structure

Amlodipine EP Impurity C

CAS: 721958-74-3
Formula: C₂₂H₃₀ClN₃O₆
MW: 467.9 g/mol

VQ-006226

Reference Standard

Amlodipine EP Impurity C (Dihydrochloride)

Amlodipine EP Impurity C (Dihydrochloride)

CAS: 2202710-78-7
Formula: C₂₂H₃₀ClN₃O_6.2ClH
MW: 540.86 g/mol

VQ-006227

Reference Standard

Amlodipine EP Impurity C (Stage-1, Methyl) chemical structure

Amlodipine EP Impurity C (Stage-1, Methyl)

CAS: 111429-90-4
Formula: C₁₅H₁₅NO₆
MW: 305.28 g/mol

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Reference Standard

Amlodipine EP Impurity C [Stage (N-1)] chemical structure

Amlodipine EP Impurity C [Stage (N-1)]

CAS: 223734-99-4
Formula: C₃₈H₃₄ClN₃O₁₀
MW: 728.1 g/mol

VQ-006229

Reference Standard

Amlodipine EP Impurity D chemical structure

Amlodipine EP Impurity D

CAS: 113994-41-5
Formula: C₂₀H₂₃ClN₂O₅
MW: 406.9 g/mol

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Reference Standard

Amlodipine EP Impurity D (Oxalate Salt) chemical structure

Amlodipine EP Impurity D (Oxalate Salt)

CAS: 1216406-90-4
Formula: C₂₂H₂₅ClN₂O₉
MW: 496.9 g/mol

In stock

Reference Standard

Amlodipine EP Impurity E chemical structure

Amlodipine EP Impurity E

CAS: 140171-65-9
Formula: C₂₁H₂₇ClN₂O₅
MW: 422.9 g/mol

In stock

Reference Standard

Amlodipine EP Impurity E Maleate chemical structure

Amlodipine EP Impurity E Maleate

CAS: 400024-12-6
Formula: C₂₅H₃₁ClN₂O₉
MW: 539 g/mol

VQ-024257

Reference Standard

Amlodipine EP Impurity F chemical structure

Amlodipine EP Impurity F

CAS: 140171-66-0
Formula: C₁₉H₂₃ClN₂O₅
MW: 394.8 g/mol

In stock

Reference Standard

Amlodipine EP Impurity F (Besylate Salt) chemical structure

Amlodipine EP Impurity F (Besylate Salt)

CAS: 61301-31-3
Formula: C₁₂H₂₂O
MW: 182.3 g/mol

VQ-029810

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