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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

1-Ethyl 3-methyl 2-bromomalonate chemical structure

1-Ethyl 3-methyl 2-bromomalonate

CAS: 93612-48-7
Formula: C₆H₉BrO₄
MW: 225.04 g/mol

VQ-044302

Reference Standard

1-Ethyl 3-Methyl 2-Methoxymalonate chemical structure

1-Ethyl 3-Methyl 2-Methoxymalonate

CAS: 56752-40-0
Formula: C₇H₁₂O₅
MW: 176.17 g/mol

VQ-027165

Reference Standard

1-Ethyl-1,3,3,5-tetramethyl-2,3-dihydro-1H-indene chemical structure

1-Ethyl-1,3,3,5-tetramethyl-2,3-dihydro-1H-indene

CAS: 29641-87-0
Formula: C₁₅H₂₂
MW: 202.33 g/mol

VQ-029423

Reference Standard

1-Ethyl-2-[(methylamino)methyl]pyrrolidine chemical structure

1-Ethyl-2-[(methylamino)methyl]pyrrolidine

CAS: 60923-27-5
Formula: C₈H₁₈N₂
MW: 142.24 g/mol

VQ-039287

Reference Standard

1-Ethyl-3-bromoadamantane chemical structure

1-Ethyl-3-bromoadamantane

CAS: 878-61-5
Formula: C₁₂H₁₉Br
MW: 243.18 g/mol

VQ-023067

Reference Standard

1-Ethyl-4-(4-nitro-phenyl)-piperazine chemical structure

1-Ethyl-4-(4-nitro-phenyl)-piperazine

CAS: 115619-00-6
Formula: C₁₂H₁₇N₃O₂
MW: 235.28 g/mol

VQ-048683

Reference Standard

1-Ethyl-4-(pyridin-3-ylmethyl)piperazine chemical structure

1-Ethyl-4-(pyridin-3-ylmethyl)piperazine

CAS: 414881-11-1
Formula: C₁₂H₁₉N₃
MW: 205.3 g/mol

VQ-023389

Reference Standard

1-Ethyl-4-Isobutylbenzene chemical structure

1-Ethyl-4-Isobutylbenzene

CAS: 100319-40-2
Formula: C₁₂H₁₈
MW: 162.27 g/mol

VQ-031130

Reference Standard

1-Ethyl-4-Nitrosopiperazine chemical structure

1-Ethyl-4-Nitrosopiperazine

CAS: 65504-33-8
Formula: C₆H₁₃N₃O
MW: 143.19 g/mol

In stock

Reference Standard

1-Ethyl-4-octylbenzene chemical structure

1-Ethyl-4-octylbenzene

CAS: 204008-22-0
Formula: C₁₆H₂₆
MW: 218.38 g/mol

VQ-030751

Reference Standard

1-Ethyladamantane chemical structure

1-Ethyladamantane

CAS: 770-69-4
Formula: C₁₂H₂₀
MW: 164.29 g/mol

VQ-038301

Reference Standard

1-Ethylpiperidin-3-amine chemical structure

1-Ethylpiperidin-3-amine

CAS: 6789-94-2
Formula: C₇H₁₆N₂
MW: 128.22 g/mol

VQ-024245

Reference Standard

1-Ethynyl-4-fluorobenzene-2,3,5,6 D4 chemical structure

1-Ethynyl-4-fluorobenzene-2,3,5,6 D4

CAS: 2378754-22-2
Formula: C₈H₅F
MW: 124.15 g/mol

VQ-047764

Reference Standard

1-Hydroxy Bufuralol chemical structure

1-Hydroxy Bufuralol

CAS: 57704-16-2
Formula: C₁₆H₂₃NO₃
MW: 277.36 g/mol

VQ-029533

Reference Standard

1-Hydroxy Carvedilol chemical structure

1-Hydroxy Carvedilol

CAS: 146574-41-6
Formula: C₂₄H₂₆N₂O₅
MW: 422.5 g/mol

VQ-029673

Reference Standard

1-Hydroxy Dapagliflozin Impurity chemical structure

1-Hydroxy Dapagliflozin Impurity

CAS: 461432-27-9
Formula: C₂₁H₂₅ClO₇
MW: 424.9 g/mol

VQ-004289

Reference Standard

1-Hydroxy Fingolimod Impurity chemical structure

1-Hydroxy Fingolimod Impurity

CAS: 162361-49-1
Formula: C₁₉H₃₃NO₃
MW: 323.5 g/mol

In stock

Reference Standard

1-Hydroxy Midazolam chemical structure

1-Hydroxy Midazolam

CAS: 59468-90-5
Formula: C₁₈H₁₃ClFN₃O
MW: 341.8 g/mol

VQ-044849

Reference Standard

1-Hydroxy N-Trityl Medetomidine chemical structure

1-Hydroxy N-Trityl Medetomidine

CAS: 176721-03-2
Formula: C₃₂H₃₀N₂O
MW: 458.6 g/mol

VQ-038276

Reference Standard

1-Hydroxy-2,7-diamino Mitosene (Mixture cis/trans) chemical structure

1-Hydroxy-2,7-diamino Mitosene (Mixture cis/trans)

CAS: 1192552-64-9
Formula: C₁₄H₁₆N₄O₅
MW: 320.3 g/mol

VQ-038456

Reference Standard

1-Hydroxy-2(1H)-pyridinone chemical structure

1-Hydroxy-2(1H)-pyridinone

CAS: 822-89-9
Formula: C₅H₅NO₂
MW: 111.1 g/mol

VQ-031000

Reference Standard

1-Hydroxy-3-amino-5,7-dimethyladamantane chemical structure

1-Hydroxy-3-amino-5,7-dimethyladamantane

CAS: 63971-25-5
Formula: C₁₂H₂₁NO
MW: 195.3 g/mol

VQ-026606

Reference Standard

1-Hydroxy-3,4-dihydroquinolin-2(1H)-one chemical structure

1-Hydroxy-3,4-dihydroquinolin-2(1H)-one

CAS: 771-19-7
Formula: C₉H₉NO₂
MW: 163.17 g/mol

VQ-035132

Reference Standard

1-Hydroxyanthraquinone chemical structure

1-Hydroxyanthraquinone

CAS: 129-43-1
Formula: C₁₄H₈O₃
MW: 224.21 g/mol

VQ-047926

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