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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

2,746in stock

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

Phosphatidylethanolamine (Soy)

Phosphatidylethanolamine (Soy)

CAS: 97281-51-1
Formula: NA

VQ-041461

Reference Standard

Phosphocreatinine chemical structure

Phosphocreatinine

CAS: 5786-71-0
Formula: C₄H₈N₃O₄P
MW: 193.1 g/mol

VQ-032772

Reference Standard

Phosphorylcholine chloride chemical structure

Phosphorylcholine chloride

CAS: 107-73-3
Formula: C₅H₁₅ClNO₄P
MW: 219.6 g/mol

VQ-039894

Reference Standard

Phthalic Hydrazide chemical structure

Phthalic Hydrazide

CAS: 1445-69-8
Formula: C₈H₆N₂O₂
MW: 162.15 g/mol

VQ-027071

Reference Standard

Phthalimidoacetaldehyde chemical structure

Phthalimidoacetaldehyde

CAS: 2913-97-5
Formula: C₁₀H₇NO₃
MW: 189.17 g/mol

VQ-043700

Reference Standard

Phthalylsulfathiazole chemical structure

Phthalylsulfathiazole

CAS: 85-73-4
Formula: C₁₇H₁₃N₃O₅S₂
MW: 403.4 g/mol

VQ-027471

Reference Standard

Phyllanthin chemical structure

CAS: 10351-88-9
Formula: C₂₄H₃₄O₆
MW: 418.5 g/mol

VQ-032331

Reference Standard

Phyllochromenol chemical structure

Phyllochromenol

CAS: 19274-66-9
Formula: C₃₁H₄₆O₂
MW: 450.7 g/mol

VQ-041469

Reference Standard

Physcion chemical structure

CAS: 521-61-9
Formula: C₁₆H₁₂O₅
MW: 284.26 g/mol

VQ-032829

Reference Standard

Physostigmine chemical structure

CAS: 57-47-6
Formula: C₁₅H₂₁N₃O₂
MW: 275.35 g/mol

VQ-041464

Reference Standard

Physostigmine Salicylate chemical structure

Physostigmine Salicylate

CAS: 57-64-7
Formula: C₂₂H₂₇N₃O₅
MW: 413.5 g/mol

VQ-019566

Reference Standard

Phytanic Acid chemical structure

CAS: 14721-66-5
Formula: C₂₀H₄₀O₂
MW: 312.5 g/mol

VQ-040966

Reference Standard

Phytomenadione EP Impurity B chemical structure

Phytomenadione EP Impurity B

CAS: 85955-78-8
Formula: C₃₁H₄₆O₃
MW: 466.7 g/mol

VQ-044417

Reference Standard

Phytonadione Impurity E chemical structure

Phytonadione Impurity E

CAS: 79082-96-5
Formula: C₃₁H₄₆O₂
MW: 450.7 g/mol

VQ-044210

Reference Standard

Phytonadione Trans-IV chemical structure

Phytonadione Trans-IV

CAS: 132487-94-6
Formula: C₃₁H₄₆O₂
MW: 450.7 g/mol

VQ-033170

Reference Standard

Phytonadione WS chemical structure

Phytonadione WS

CAS: 84-80-0
Formula: C₃₁H₄₆O₂
MW: 450.7 g/mol

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Reference Standard

Phytyl trimethylhydroquinone diacetate chemical structure

Phytyl trimethylhydroquinone diacetate

CAS: 85314-71-2
Formula: C₃₃H₅₄O₄
MW: 514.8 g/mol

VQ-032903

Reference Standard

Pibrentasvir chemical structure

CAS: 1353900-92-1
Formula: C₅₇H₆₅F₅N₁₀O₈
MW: 1113.2 g/mol

VQ-027475

Reference Standard

Picarbutrazox chemical structure

CAS: 500207-04-5
Formula: C₂₀H₂₃N₇O₃
MW: 409.4 g/mol

VQ-041476

Reference Standard

Picaridin chemical structure

CAS: 119515-38-7
Formula: C₁₂H₂₃NO₃
MW: 229.32 g/mol

VQ-027477

Reference Standard

Picloxydine chemical structure

CAS: 5636-92-0
Formula: C₂₀H₂₄Cl₂N₁₀
MW: 475.4 g/mol

VQ-044492

Reference Standard

Picloxydine Dihydrochloride chemical structure

Picloxydine Dihydrochloride

CAS: 19803-62-4
Formula: C₂₀H₂₆Cl₄N₁₀
MW: 548.3 g/mol

VQ-033175

Reference Standard

Picosulfate Benzyl Alcohol Disodium Salt chemical structure

Picosulfate Benzyl Alcohol Disodium Salt

CAS: 2379878-05-2
Formula: C₁₈H₁₃NNa₂O₉S₂
MW: 497.4 g/mol

VQ-023771

Reference Standard

Picosulfate Sodium EP Impurity A chemical structure

Picosulfate Sodium EP Impurity A

CAS: 32500-19-9
Formula: C₁₈H₁₄NNaO₅S
MW: 379.4 g/mol

VQ-023770

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