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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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((4R,5R)-2-(Dichloromethyl)-5-(4-(methylsulfonyl)phenyl)-4,5-dihydrooxazol-4-yl)methanol

CAS: 126813-11-4
Formula: C₁₂H₁₃Cl₂NO₄S
MW: 338.2 g/mol

ZX-024763

((5-Thiazolyl)methyl)-(4-nitrophenyl)carbonate

CAS: 144163-97-3
Formula: C₁₁H₈N₂O₅S
MW: 280.26 g/mol

ZX-024045

((S)-2,2-Dimethyl-1,3-dioxolan-4-yl)methyl 3-(4-((S)-2-hydroxy-3-(3-(4-((S)-2-hydroxy-3-((2-(morpholine-4-carboxamido)ethyl)amino)propoxy)phenyl)-N-(2-(morpholine-4-carboxamido)ethyl)propanamido)propoxy)phenyl)propanoate

CAS: 1582797-17-8
Formula: C₄₄H₆₆N₆O₁₃
MW: 887 g/mol

ZX-030165

((S)-4,4-Dibutyl-2,6-bis(3,4,5-trifluorophenyl)-4,5-dihydro-3H-Dinaphtho[2,1-C,1`,2`-E]azepinium bromide

CAS: 851942-89-7
Formula: C₄₂H₃₆BrF₆N
MW: 748.6 g/mol

ZX-035181

(+)-[6]-Gingerol

CAS: 23513-14-6
Formula: C₁₇H₂₆O₄
MW: 294.4 g/mol

ZX-029736

(+)-Anatoxin-a

CAS: 64285-06-9
Formula: C₁₀H₁₅NO
MW: 165.23 g/mol

ZX-046515

(+)-Biotin (+)-Sulfoxide

CAS: 10406-89-0
Formula: C₁₀H₁₆N₂O₄S
MW: 260.31 g/mol

ZX-023586

(+)-Borneol

CAS: 464-43-7
Formula: C₁₀H₁₈O
MW: 154.25 g/mol

ZX-033110

(+)-Cannabidiol

CAS: 74219-29-7
Formula: C₂₁H₃₀O₂
MW: 314.5 g/mol

ZX-028441

(+)-Catechin

CAS: 154-23-4
Formula: C₁₅H₁₄O₆
MW: 290.27 g/mol

ZX-031199

(+)-Echimidine

CAS: 520-68-3
Formula: C₂₀H₃₁NO₇
MW: 397.5 g/mol

ZX-029140

(+)-Ent-Peramivir

CAS: 229615-12-7
Formula: C₁₅H₂₈N₄O₄
MW: 328.41 g/mol

ZX-026350

(+)-Gallocatechin

CAS: 970-73-0
Formula: C₁₅H₁₄O₇
MW: 306.27 g/mol

ZX-042872

(+)-Homopilopic Acid

CAS: 58073-67-9
Formula: C₈H₁₂O₄
MW: 172.18 g/mol

ZX-031853

(+)-Hydroxycitric acid lactone

CAS: 27750-13-6
Formula: C₆H₆O₇
MW: 190.11 g/mol

ZX-047663

(+)-Isomenthol

CAS: 23283-97-8
Formula: C₁₀H₂₀O
MW: 156.26 g/mol

ZX-021542

(+)-Longifolene

CAS: 475-20-7
Formula: C₁₅H₂₄
MW: 204.35 g/mol

ZX-034051

(+)-Lycopsamine

CAS: 10285-07-1
Formula: C₁₅H₂₅NO₅
MW: 299.36 g/mol

ZX-033790

(+)-Lycopsamine N-Oxide

CAS: 95462-15-0
Formula: C₁₅H₂₅NO₆
MW: 315.36 g/mol

ZX-033791

(+)-Menthol

CAS: 15356-60-2
Formula: C₁₀H₂₀O
MW: 156.26 g/mol

ZX-029245

(+)-Menthone

CAS: 3391-87-5
Formula: C₁₀H₁₈O
MW: 154.25 g/mol

ZX-036793

(+)-MK 801 Maleate

CAS: 77086-22-7
Formula: C₂₀H₁₉NO₄
MW: 337.4 g/mol

ZX-033315

(+)-Narwedine

CAS: 7318-55-0
Formula: C₁₇H₁₉NO₃
MW: 285.34 g/mol

ZX-039216

(+)-Nebivolol

CAS: 118457-15-1
Formula: C₂₂H₂₅F₂NO₄
MW: 405.4 g/mol

ZX-025766

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