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Impurity Reference Standards

Pharmacopoeial impurities, nitrosamines, metabolites, labelled internal standards and API working standards, each backed by analytical data for method development and QC.

20,060 products6 categories2,050 in stockCOA + SDS with every lot

20,060 products · page 725 of 836

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Rel-N1-(((1R,2S)-2-(Diethylcarbamoyl)-2-phenylcyclopropyl)methyl)-N2-methylphthalamide

CAS: 1452824-73-5
Formula: C₂₄H₂₉N₃O₃
MW: 407.5 g/mol

ZX-030625

Rel-N1,N2-Bis(((1R,2S)-2-(diethylcarbamoyl)-2-phenylcyclopropyl)methyl)phthalamide

CAS: 1452824-75-7
Formula: C₃₈H₄₆N₄O₄
MW: 622.8 g/mol

ZX-030627

Rel-Sacubitril (2R,4R) Isomer

CAS: 766480-48-2
Formula: C₂₄H₂₉NO₅
MW: 411.5 g/mol

ZX-005247

Relebactam

CAS: 1174018-99-5
Formula: C₁₂H₂₀N₄O₆S
MW: 348.38 g/mol

ZX-026675

Relugolix

CAS: 737789-87-6
Formula: C₂₉H₂₇F₂N₇O₅S
MW: 623.6 g/mol

ZX-006768

Relugolix Des Methyl Impurity Stage-I

CAS: 308831-94-9
Formula: C₂₄H₂₂F₂N₂O₆S
MW: 504.5 g/mol

ZX-005248

Relugolix Impurity 34

CAS: 1589503-95-6
Formula: C₂₄H₂₃F₂N₃O₆S
MW: 519.5 g/mol

ZX-005249

Relugolix Impurity 5

CAS: 1589504-01-7
Formula: C₃₁H₃₀F₂N₈O₇S
MW: 696.7 g/mol

ZX-032141

Relugolix Impurity 53

CAS: 308831-93-8
Formula: C₁₇H₁₈N₂O₆S
MW: 378.4 g/mol

ZX-047821

Relugolix Impurity 61

CAS: 2814571-32-7
Formula: C₂₆H₂₄F₂N₆O₄S
MW: 554.6 g/mol

ZX-005250

Relugolix Impurity B

CAS: 1589503-93-4
Formula: C₂₇H₂₄F₂N₆O₃S
MW: 550.6 g/mol

ZX-005251

Relugolix Impurity-20 (Stage-V)

CAS: 2767571-66-2
Formula: C₂₆H₂₆F₂N₆O₂S
MW: 524.6 g/mol

ZX-005252

Relugolix KSM 02 Impurity

CAS: 308831-95-0
Formula: C₂₄H₂₁BrF₂N₂O₆S
MW: 583.4 g/mol

ZX-047995

Relugolix NH-OH Impurity (N-1Stage)

CAS: 1589503-96-7
Formula: C₂₇H₂₂F₂N₆O₅S
MW: 580.6 g/mol

ZX-005253

Relugolix NH-OH Impurity (Stage-1)

CAS: 1589503-94-5
Formula: C₆₇H₆₅BrN₇O₁₄PS₄
MW: 1431.4 g/mol

ZX-005254

Relugolix Urea Dimer Impurity

CAS: 2814571-36-1
Formula: C₅₅H₄₆F₄N₁₂O₇S₂
MW: 1127.2 g/mol

ZX-026676

Remdesivir Diastereomer Impurity

CAS: 1911578-75-0
Formula: C₂₇H₃₅N₆O₈P
MW: 602.6 g/mol

ZX-005255

Remdesivir Impurity 20

CAS: 1884576-18-4
Formula: C₃₀H₃₉N₆O₈P
MW: 642.6 g/mol

ZX-005256

Remdesivir O-Desphosphate Acetonide Impurity

CAS: 1191237-80-5
Formula: C₁₅H₁₇N₅O₄
MW: 331.33 g/mol

ZX-005257

Remdesivir O-Desphosphate Analogue

CAS: 1191237-69-0
Formula: C₁₂H₁₃N₅O₄
MW: 291.26 g/mol

ZX-005258

Remdesivir O-Desphosphate Tri-OBn Impurity

CAS: 1355049-94-3
Formula: C₃₂H₃₂N₄O₅
MW: 552.6 g/mol

ZX-032940

Remdesivir p-NitroPhenoxy L-Alanine Impurity

CAS: 1354823-36-1
Formula: C₂₁H₂₇N₂O₇P
MW: 450.4 g/mol

ZX-005259

Remdesivir Phosphate Impurity

CAS: 1911578-74-9
Formula: C₁₂H₁₄N₅O₇P
MW: 371.24 g/mol

ZX-032147

Remdesivir WS

CAS: 1809249-37-3
Formula: C₂₇H₃₅N₆O₈P
MW: 602.6 g/mol

ZX-006769

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