Impurity Reference Standards

Metabolites & Degradation Products

Drug metabolites, N-oxides, sulphoxides and forced-degradation products for stability studies, DMPK work and impurity identification.

2,569 products117 in stockCOA + SDS with every lot

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(4R,6S)-6-(Chloromethyl)-4- hydroxytetrahydro-2H-pyran-2-one

CAS: 391218-14-7
Formula: C₆H₉ClO₃
MW: 164.59 g/mol

ZX-032307

(4R,6S)-6-Hydroxymethyl-2,2-dimethyl-1,3-dioxane-4-acetic Acid 1,1-Dimethylethyl Ester

CAS: 124655-09-0
Formula: C₁₃H₂₄O₅
MW: 260.33 g/mol

ZX-022701

(4R)-3-[(5S)-5-(4-Fluorophenyl)-5-Hydroxypentanoyl]-4-Phenyl-1,3-Oxazolidin-2-One

CAS: 404874-94-8
Formula: C₂₀H₂₀FNO₄
MW: 357.4 g/mol

ZX-029426

(4R)-5-(3',4'-Dihydroxyphenyl)-γ-valerolactone ((-)-Epicatechin Metabolite)

CAS: 191666-22-5
Formula: C₁₁H₁₂O₄
MW: 208.21 g/mol

ZX-045059

(4S,4AS,12aS)-4,7-Bis(dimethylamino)-3,10,11,12a-tetrahydroxy-9-((neopentylamino)methyl)-1,12-dioxo-1,4,4a,5,12,12a-hexahydrotetracene-2-carboxamide

CAS: 2272886-35-6
Formula: C₂₉H₃₈N₄O₇
MW: 554.6 g/mol

ZX-030944

(4S,4AS,5aR,12aS)-4-(Dimethylamino)-3,10,12,12a-tetrahydroxy-7-(methylamino)-9-((neopentylamino)methyl)-1,11-dioxo-1,4,4a,5,5a,6,11,12a-octahydrotetracene-2-carboxamide

CAS: 2272886-38-9
Formula: C₂₈H₃₈N₄O₇
MW: 542.6 g/mol

ZX-030942

(4S,4AS,5aR,12aS)-4,7-Bis(dimethylamino)-3,10,12,12a-tetrahydroxy-9-((neopentylamino)methyl)-4a,5a,6,12a-tetrahydrotetracene-1,11(4H,5H)-dione

CAS: 2272886-34-5
Formula: C₂₈H₃₉N₃O₆
MW: 513.6 g/mol

ZX-030945

(4S,4AS,5aR,12aS)-4,7-Bis(dimethylamino)-3,10,12,12a-tetrahydroxy-N-(hydroxymethyl)-9-((neopentylamino)methyl)-1,11-dioxo-1,4,4a,5,5a,6,11,12a-octahydrotetracene-2-carboxamide

CAS: 1075240-42-4
Formula: C₃₀H₄₂N₄O₈
MW: 586.7 g/mol

ZX-025933

(4S,6R)-6-Hydroxymethyl-2,2-dimethyl-1,3-dioxane-4-acetic Acid 1,1-Dimethylethyl Ester

CAS: 148809-28-3
Formula: C₁₃H₂₄O₅
MW: 260.33 g/mol

ZX-026075

(4S)-4-Ethyl-7,8-dihydro-4-hydroxy-1H-pyrano[3,4-f]indolizine-3,6,10(4H)-trione

CAS: 110351-94-5
Formula: C₁₃H₁₃NO₅
MW: 263.25 g/mol

ZX-021000

(4S)-4-Phenyl-3-[(5S)-5-(4-fluorophenyl)-5-hydroxypentanoyl]-1,3-oxazolidin-2-one

CAS: 189028-95-3
Formula: C₂₀H₂₀FNO₄
MW: 357.4 g/mol

ZX-024656

(5-Bromo-2-chlorophenyl)(4-hydroxyphenyl)methanone

CAS: 1360568-68-8
Formula: C₁₃H₈BrClO₂
MW: 311.56 g/mol

ZX-024490

(5R)-3-(4-Bromo-3-fluorophenyl)-5-(hydroxymethyl)-2-oxazolidinone

CAS: 444335-16-4
Formula: C₁₀H₉BrFNO₃
MW: 290.09 g/mol

ZX-022430

(5R)-6-Cyano-5-hydroxy-3-oxo-hexanoic Acid tert-Butyl Ester

CAS: 125988-01-4
Formula: C₁₁H₁₇NO₄
MW: 227.26 g/mol

ZX-023409

(5S)-1-(2-Hydroxyethyl)-4-methyl-5-[2-(trifluoromethyl)phenyl]-1H-pyrrole-3-carboxylic Acid

CAS: 1632002-11-9
Formula: C₁₅H₁₄F₃NO₃
MW: 313.27 g/mol

ZX-022441

(5S)-3-(4-Bromo-3-fluorophenyl)-5-(hydroxymethyl)-2-oxazolidinone

CAS: 1369530-77-7
Formula: C₁₀H₉BrFNO₃
MW: 290.09 g/mol

ZX-027117

(6R,7R)-7-((Z)-2-(Ethoxyimino)-2-(5-((hydroxy(phosphonooxy)phosphoryl)amino)-1,2,4-thiadiazol-3-yl)acetamido)-3-((4-(1-methylpyridin-1-ium-4-yl)thiazol-2-yl)thio)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate

CAS: 1286218-64-1
Formula: C₂₂H₂₂N₈O₁₁P₂S₄
MW: 764.7 g/mol

ZX-021135

(6R,7R)-7-Amino-3-hydroxy-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid

CAS: 64918-77-0
Formula: C₇H₈N₂O₄S
MW: 216.22 g/mol

ZX-028533

(6S,6'S,8S,8'S,9R,9'R,10S,10'S,11S,11'S,13S,13'S,14S,14'S,16R,16'R,17R,17'R)-((Methylenebis(sulfanediyl))bis(carbonyl))bis(6,9-difluoro-11-hydroxy-10,13,16-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthrene-17,17-diyl) Dipropionate

CAS: 192191-51-8
Formula: C₄₉H₆₀F₄O₁₀S₂
MW: 949.1 g/mol

ZX-029600

(6S,8S,9R,10S,11S,13S,14S,17S)-6,9-Difluoro-11-hydroxy-10,13-dimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthrene-17-carboxylic Acid

CAS: 167997-12-8
Formula: C₂₀H₂₄F₂O₄
MW: 366.4 g/mol

ZX-022562

(6S,8S,9R,10S,11S,13S,14S)-6,9-Difluoro-11-hydroxy-17-(2-hydroxyacetyl)-10,13-dimethyl-6,7,8,9,10,11,12,13,14,15-decahydro-3H-cyclopenta[a]phenanthren-3-one

CAS: 1270039-29-6
Formula: C₂₁H₂₄F₂O₄
MW: 378.4 g/mol

ZX-022563

(6α,9β,11β,16α)-9,11-Epoxy-6-fluoro-21-hydroxy-16-methyl-pregna-1,4-diene-3,20-dione

CAS: 61618-89-1
Formula: C₂₂H₂₇FO₄
MW: 374.4 g/mol

ZX-028674

(7R,8R,9S,13S,14S,17S)-7-(9-Chlorononyl)-3-hydroxy-13-methyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthren-17-yl acetate

CAS: 2490287-82-4
Formula: C₂₉H₄₃ClO₃
MW: 475.1 g/mol

ZX-024887

(8R,9S,10R,11S,13S,16R,17S)-11,16,17-Trihydroxy-17-(2-hydroxyacetyl)-10,13-dimethyl-6,7,8,9,10,11,12,13,16,17-decahydro-3H-cyclopenta[a]phenanthren-3-one

CAS: 131918-73-5
Formula: C₂₁H₂₆O₆
MW: 374.4 g/mol

ZX-020954

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