Chemical Name:N-Desisopropyl Delavirdine-d8Synonyms:N-[2-[[4-(3-Amino-2-pyridinyl)-1-piperazinyl]carbonyl]-1H-indol-5-yl]methanesulfonamide-d8; 1-(3-Amino-2-pyridinyl)-4-[[5-[(methylsulfonyl)amino]-1H-indol-2-yl]carbonyl]piperazine-d8; N-Desisopropyldelavirdine-d8; U 96183-d8Alternate CAS #:Unlabelled: 165133-86-8Molecular Formula:C₁₉H₁₄D₈N₆O₃SMolecular Weight:422.53Category:Standards; Isotopic Labeled Analogues;…

Chemical Name:4-Desmethoxypropoxyl-4-methylthio RabeprazoleSynonyms:2-[[[3-Methyl-4-(methylthio)-2-pyridinyl]methyl]sulfinyl]-1H-benzimidazole;CAS Number:99487-86-2Molecular Formula:C₁₅H₁₅N₃OS₂Molecular Weight:317.43Category:Standards; Pharmaceutical/API Drug Impurities/Metabolites;Applications:A process impurity of Rabeprazole (R070500).References:Reddy, P.,…

Chemical Name:N-Desmethyl AlosetronSynonyms:2,3,4,5-Tetrahydro-2-[(5-methyl-1H-imidazol-4-yl)methyl]-1H-pyrido[4,3-b]indol-1-one; 2,3,4,5-Tetrahydro-2-[(4-methyl-1H-imidazol-5-yl)methyl]-1H-pyrido[4,3-b]indol-1-one; N-Desmethyl Lotronex; Alosetron N-Desmethyl ImpurityImpurityAlosetron N-Desmethyl ImpurityCAS Number:122852-63-5Molecular Formula:C₁₆H₁₆N₄OMolecular Weight:280.32Category:Standards; Pharmaceutical/API…

Chemical Name:(R,R)-Des-N-(methoxycarbonyl)-L-tert-leucine Bis-Boc AtazanavirSynonyms:2-[(2R,3R)-3-[[(1,1-Dimethylethoxy)carbonyl]amino]-2-hydroxy-4-phenylbutyl]-2-[[4-(2-pyridinyl)phenyl]methyl]hydrazinecarboxylic Acid 1,1-Dimethylethyl EsterAlternate CAS #:Enantiomer: 198904-86-8Molecular Formula:C₃₂H₄₂N₄O₅Molecular Weight:562.7Category:Standards; Pharmaceutical/API Drug Impurities/Metabolites;Applications:(R,R)-Des-N-(methoxycarbonyl)-L-tert-leucine…

Chemical Name:(2S,3R)-Des-N-(methoxycarbonyl)-L-tert-leucine Bis-Boc AtazanavirSynonyms:2-[(2S,3R)-3-[[(1,1-Dimethylethoxy)carbonyl]amino]-2-hydroxy-4-phenylbutyl]-2-[[4-(2-pyridinyl)phenyl]methyl]hydrazinecarboxylic Acid 1,1-Dimethylethyl EsterMolecular Formula:C₃₂H₄₂N₄O₅Molecular Weight:562.7Category:Standards; Pharmaceutical/API Drug Impurities/Metabolites;Applications:(2S,3R)-Des-N-(methoxycarbonyl)-L-tert-leucine Bis-Boc Atazanavir is…

Chemical Name:7-Desdimethylamino-7-((2-(methylamino)ethyl)(methyl))amino)-minocycline HydrochlorideMolecular Formula:C₂₅H₃₂N₄O₇•(HCl)ₓMolecular Weight:500.54 + x(36.46)Category:Standards; Pharmaceutical/API Drug Impurities/Metabolites;Applications:7-Desdimethylamino-7-((2-(methylamino)ethyl)(methyl))amino)-minocycline Hydrochloride is an impurity of…

Chemical Name:Desfluoro Hydroxy FallyprideSynonyms:5-(3-Hydroxypropyl)-2,3-dimethoxy-N-[[(2S)-1-(2-propenyl)-2-pyrrolidinyl]methyl]-benzamide; (S)-5-(3-hydroxypropyl)-2,3-dimethoxy-N-[[1-(2-propenyl)-2-pyrrolidinyl]methyl]-Benzamide;CAS Number:166173-73-5Molecular Formula:C₂₀H₃₀N₂O₄Molecular Weight:362.46Category:Standards; Pharmaceutical/API Drug Impurities/Metabolites;Applications:Desfluoro Hydroxy Fallypride is a…

Chemical Name:N-Desethyl 2-Chloro Clomiphene (cis-trans Mixture) HydrochlorideMolecular Formula:C₂₄H₂₃Cl₂NO •HClMolecular Weight:412.35 +(36.46)Category:Building Blocks;Applications:N-Desethyl 2-Chloro Clomiphene (cis-trans…

Chemical Name:rac-4’-O-Desmethyl-4’-O-ethyl ApremilastSynonyms:N-(2-(1-(3,4-Diethoxyphenyl)-2-(methylsulfonyl)ethyl)-1,3-dioxoisoindolin-4-yl)acetamide; Apremilast Impurity DMolecular Formula:C₂₃H₂₆N₂O₇SMolecular Weight:474.53Category:Standards; Enzyme Activators and Inhibitors; Pharmaceutical/API Drug Impurities/Metabolites;Applications:rac-4’-O-Desmethyl-4’-O-ethyl…

Chemical Name:O-Desethyl O-Propyl Sildenafil-d3Synonyms:1,6-Dihydro-1-methyl-5-[5-[(4-methyl-1-piperazinyl)sulfonyl]-2-propoxyphenyl]-3-propyl-7H-pyrazolo[4,3-d]pyrimidin-7-one-d3; 1-[[3-(4,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-propoxyphenyl]sulfonyl]-4-methyl-piperazine-d3Alternate CAS #:Unlabelled: 877777-10-1Molecular Formula:C₂₃H₂₉D₃N₆O₄SMolecular Weight:491.62Category:Building Blocks; Isotopic Labeled Analogues;Applications:O-Desethyl O-Propyl…