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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

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Candesartan Cilexetil EP Impurity H

CAS: 170791-09-0
Formula: C₅₂H₄₈N₆O₆
MW: 853 g/mol

ZX-005614

Candesartan Cilexetil EP Impurity I

CAS: 139481-69-9
Formula: C₂₅H₂₂N₆O₃
MW: 454.5 g/mol

ZX-005615

Candesartan Cilexetil Methoxy Analog

CAS: 1026042-12-5
Formula: C₃₂H₃₂N₆O₆
MW: 596.6 g/mol

ZX-023729

Candesartan Cilexetil N2-Trityl Methoxy Analog

CAS: 1797867-82-3
Formula: C₅₁H₄₆N₆O₆
MW: 838.9 g/mol

ZX-023732

Candesartan Desethyl Analog

CAS: 168434-02-4
Formula: C₂₂H₁₆N₆O₃
MW: 412.4 g/mol

ZX-028429

Candesartan Ethyl Ester Desethyl Analog

CAS: 1225044-20-1
Formula: C₂₄H₂₀N₆O₃
MW: 440.5 g/mol

ZX-023724

Candesartan Ethyl Ester N1-Cilexetil Analog

CAS: 1391054-45-7
Formula: C₃₅H₃₈N₆O₆
MW: 638.7 g/mol

ZX-028430

Candesartan Impurity 4

CAS: 139481-38-2
Formula: C₂₇H₂₅N₃O₆
MW: 487.5 g/mol

ZX-028428

Candesartan Methyl Ester Desethyl Analog

CAS: 1203674-06-9
Formula: C₂₃H₁₈N₆O₃
MW: 426.4 g/mol

ZX-023723

Candesartan Methyl Ester Methoxy Analog

CAS: 139481-75-7
Formula: C₂₄H₂₀N₆O₃
MW: 440.5 g/mol

ZX-028434

Candesartan N1-Ethyl Impurity

CAS: 1246817-38-8
Formula: C₂₆H₂₄N₆O₃
MW: 468.5 g/mol

ZX-023733

Candesartan N2-Ethyl Impurity

CAS: 1246819-02-2
Formula: C₂₆H₂₄N₆O₃
MW: 468.5 g/mol

ZX-023727

Candesartan-d4

CAS: 1346604-70-3
Formula: C₂₄H₂₀N₆O₃
MW: 444.5 g/mol

ZX-028436

Canertinib Dihydrochloride

CAS: 289499-45-2
Formula: C₂₄H₂₇Cl₃FN₅O₃
MW: 558.9 g/mol

ZX-042775

Cangrelor Impurity A

CAS: 847460-53-1
Formula: C₁₆H₂₃F₃N₅O₇PS₂
MW: 549.5 g/mol

ZX-020112

Cangrelor Tetrasodium

CAS: 163706-36-3
Formula: C₁₇H₂₁Cl₂F₃N₅Na₄O₁₂P₃S₂
MW: 864.3 g/mol

ZX-023734

Cannabidiol C4

CAS: 60113-11-3
Formula: C₂₀H₂₈O₂
MW: 300.4 g/mol

ZX-036855

Cannabidiol hydroxyquinone

CAS: 137252-25-6
Formula: C₂₁H₂₈O₃
MW: 328.4 g/mol

ZX-036854

Cannabidiolic acid

CAS: 1244-58-2
Formula: C₂₂H₃₀O₄
MW: 358.5 g/mol

ZX-028440

Cannabidivarin

CAS: 24274-48-4
Formula: C₁₉H₂₆O₂
MW: 286.4 g/mol

ZX-028444

Cannabigerol

CAS: 25654-31-3
Formula: C₂₁H₃₂O₂
MW: 316.5 g/mol

ZX-031333

Cannabigerolic Acid

CAS: 25555-57-1
Formula: C₂₂H₃₂O₄
MW: 360.5 g/mol

ZX-033144

Canrenoic Acid

CAS: 4138-96-9
Formula: C₂₂H₃₀O₄
MW: 358.5 g/mol

ZX-036209

Canrenoic Acid Potassium Salt

CAS: 2181-04-6
Formula: C₂₂H₂₉KO₄
MW: 396.6 g/mol

ZX-042727

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