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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.

27,990products

6sub-categories

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COA + SDSwith every lot

API Impurities 14,098 Pharmacopeial Impurities (EP / USP / BP) 4,399 Nitrosamine Impurities 631 Stable Isotope Labelled Standards (Deuterated, 13C, 15N) 1,504 Metabolites & Degradation Products 3,922 API Reference Standards 3,436

Reference Standard

Pridinol N-Oxide chemical structure

Pridinol N-Oxide

CAS: 2724762-69-8
Formula: C₂₀H₂₅NO₂
MW: 311.4 g/mol

VQ-027622

Reference Standard

Pridinol O-Glucuronide

Pridinol O-Glucuronide

CAS: 66944-54-5
Formula: C₂₆H₃₃NO₇
MW: 471.54 g/mol

VQ-041660

Reference Standard

Pridopidine chemical structure

CAS: 346688-38-8
Formula: C₁₅H₂₃NO₂S
MW: 281.4 g/mol

VQ-041661

Reference Standard

Prifinium Bromide chemical structure

Prifinium Bromide

CAS: 4630-95-9
Formula: C₂₂H₂₈BrN
MW: 386.4 g/mol

VQ-041662

Reference Standard

Prilocaine chemical structure

CAS: 721-50-6
Formula: C₁₃H₂₀N₂O
MW: 220.31 g/mol

VQ-033323

Reference Standard

Prilocaine EP impurity A chemical structure

Prilocaine EP impurity A

CAS: 19281-31-3
Formula: C₁₀H₁₂ClNO
MW: 197.66 g/mol

VQ-027625

Reference Standard

Prilocaine EP impurity C chemical structure

Prilocaine EP impurity C

CAS: 42459-37-0
Formula: C₁₂H₁₈N₂O
MW: 206.28 g/mol

VQ-033325

Reference Standard

Prilocaine EP Impurity C (HCl Salt) chemical structure

Prilocaine EP Impurity C (HCl Salt)

CAS: 35891-75-9
Formula: C₁₂H₁₉ClN₂O
MW: 242.74 g/mol

VQ-043266

Reference Standard

Prilocaine EP Impurity D chemical structure

Prilocaine EP Impurity D

CAS: 875252-65-6
Formula: C₁₃H₂₀N₂O
MW: 220.31 g/mol

VQ-033326

Reference Standard

Prilocaine EP impurity D HCl chemical structure

Prilocaine EP impurity D HCl

CAS: 878791-35-6
Formula: C₁₃H₂₁ClN₂O
MW: 256.77 g/mol

VQ-043267

Reference Standard

Prilocaine EP Impurity E chemical structure

Prilocaine EP Impurity E

CAS: 744961-76-0
Formula: C₁₃H₂₀N₂O
MW: 220.31 g/mol

VQ-027624

Reference Standard

Prilocaine EP Impurity E (HCl Salt) chemical structure

Prilocaine EP Impurity E (HCl Salt)

CAS: 35891-99-7
Formula: C₁₃H₂₁ClN₂O
MW: 256.77 g/mol

VQ-041663

Reference Standard

Prilocaine EP impurity F chemical structure

Prilocaine EP impurity F

CAS: 42459-45-0
Formula: C₁₂H₁₈N₂O
MW: 206.28 g/mol

VQ-033327

Reference Standard

Prilocaine EP Impurity G chemical structure

Prilocaine EP Impurity G

CAS: 145133-92-2
Formula: C₁₂H₁₈N₂O
MW: 206.28 g/mol

VQ-033324

Reference Standard

Prilocaine EP Impurity G HCl chemical structure

Prilocaine EP Impurity G HCl

CAS: 1049712-77-7
Formula: C₁₂H₁₉ClN₂O
MW: 242.74 g/mol

VQ-045261

Reference Standard

Prilocaine Hydrochloride chemical structure

Prilocaine Hydrochloride

CAS: 1786-81-8
Formula: C₁₃H₂₁ClN₂O
MW: 256.77 g/mol

VQ-033322

Reference Standard

Primaquine chemical structure

CAS: 90-34-6
Formula: C₁₅H₂₁N₃O
MW: 259.35 g/mol

VQ-041665

Reference Standard

Primaquine Diphosphate chemical structure

Primaquine Diphosphate

CAS: 63-45-6
Formula: C₁₅H₂₇N₃O₉P₂
MW: 455.34 g/mol

VQ-027626

Reference Standard

Primaquine Diphosphate EP Impurity C (Free Base) chemical structure

Primaquine Diphosphate EP Impurity C (Free Base)

CAS: 90-52-8
Formula: C₁₀H₁₀N₂O
MW: 174.2 g/mol

VQ-027110

Reference Standard

Primaquine EP Impurity D chemical structure

Primaquine EP Impurity D

CAS: 83532-78-9
Formula: C₂₃H₂₃N₃O₃
MW: 389.4 g/mol

VQ-027628

Reference Standard

Primaquine Phosphate Secaquine Impurity chemical structure

Primaquine Phosphate Secaquine Impurity

CAS: 2732404-25-8
Formula: C₁₅H₂₁N₃O
MW: 259.35 g/mol

VQ-035073

Reference Standard

Primidone chemical structure

CAS: 125-33-7
Formula: C₁₂H₁₄N₂O₂
MW: 218.25 g/mol

VQ-023553

Reference Standard

Primidone EP Impurity A chemical structure

Primidone EP Impurity A

CAS: 7206-76-0
Formula: C₁₁H₁₄N₂O₂
MW: 206.24 g/mol

VQ-023557

Reference Standard

Primidone EP Impurity C chemical structure

Primidone EP Impurity C

CAS: 90-26-6
Formula: C₁₀H₁₃NO
MW: 163.22 g/mol

VQ-023556

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