Catalogue Number:D288530Chemical Name:6-Deschloro-6,7-epoxy Cyproterone AcetateSynonyms:(1β,2β,6α,7α)-17-(Acetyloxy)-6,7-epoxy-1,2-dihydro-3'H-cyclopropa[1,2]pregna-1,4-diene-3,20-dione; 6α,7α-Epoxy-1β,2β-dihydro-17-hydroxy-3'H-cyclopropa[1,2]pregna-1,4-diene-3,20-dione Acetate; Cyproterone Acetate EP Impurity JImpurity:Cyproterone Acetate EP Impurity…

Catalogue Number:D288520Chemical Name:6-Deschloro Cyproterone AcetateSynonyms:(1β,2β)-17-(Acetyloxy)-1,2-dihydro-3'H-cyclopropa[1,2]pregna-1,4,6-triene-3,20-dione; 17-Hydroxy-1α,2α-methylenepregna-4,6-diene-3,20-dione Acetate; Cyproterone Acetate EP Impurity AImpurity:Cyproterone Acetate EP Impurity…

Catalogue Number:D288515Chemical Name:6-Deschloro-4-chloro Cyproterone AcetateSynonyms:4-Chloro-1β,2β-dihydro-17-hydroxy-3'H-cyclopropa[1,2]pregna-1,4,6-triene-3,20-dione Acetate;CAS Number:23814-68-8Molecular Formula:C₂₄H₂₉ClO₄Molecular Weight:416.94Category:Standards; Pharmaceutical/API Drug Impurities/Metabolites; Steroids;Applications:An impurity of…

Catalogue Number:D288510Chemical Name:Des(oxopentyl) ValsartanSynonyms:N-[[2'-(2H-Tetrazol-5-yl)[1,1'-biphenyl]-4-yl]methyl]-L-valine; N-[[2'-(1H-Tetrazol-5-yl)[1,1'-biphenyl]-4-yl]methyl]-L-valine;Impurity:Valsartan Desvaleryl Impurity:CAS Number:676129-92-3Molecular Formula:C₁₉H₂₁N₅O₂Appearance:White to Off-White SolidMelting Point:>151C (dec.)Molecular Weight:351.41Storage:-20°CSolubility:DMSO…

Catalogue Number:D288505Chemical Name:N-Desaminosulfonyl-N-cyano FamotidineSynonyms:3-[[[2-[(Aminoiminomethyl)amino]-4-thiazolyl]methyl]thio]-N-cyanopropanimidamide;Impurity:EP Impurity GCAS Number:76823-97-7Molecular Formula:C₉H₁₃N₇S₂Appearance:White to Off-White SolidMelting Point:138-143°CMolecular Weight:283.38Storage:-20°CSolubility:DMSO (Slightly), Methanol…

Catalogue Number:D288500Chemical Name:8-Deschloro-8-bromo-N-methyl DesloratadineSynonyms:8-Bromo-6,11-dihydro-11-(1-methyl-4-piperidinylidene)-5H-benzo[5,6]cyclohepta[1,2-b]pyridine;CAS Number:130642-57-8Molecular Formula:C₂₀H₂₁BrN₂Molecular Weight:369.3Category:Standards; Pharmaceutical/API Drug Impurities/Metabolites;Applications:A derivative of Loratadine as dual…

Catalogue Number:D288481Chemical Name:Descarboxyl OrbifloxacinSynonyms:1-Cyclopropyl-7-((3R,5S)-3,5-dimethylpiperazin-1-yl)-5,6,8-trifluoroquinolin-4(1H)-one; Orbifloxacin Impurity;CAS Number:166323-26-8Molecular Formula:C₁₈H₂₀F₃N₃OMolecular Weight:351.37Category:Standards; Pharmaceutical/API Drug Impurities/Metabolites;Applications:Descarboxyl Orbifloxacin is an…

Catalogue Number:D288480Chemical Name:Descarboxyl LevofloxacinSynonyms:(3S)-9-Fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7H-pyrido[1,2,3-de]-1,4-benzoxazin-7-one; Levofloxacin Descarboxy Impurity:Impurity:Levofloxacin Descarboxy Impurity:CAS Number:178964-53-9Molecular Formula:C₁₇H₂₀FN₃O₂Appearance:Off-White to Light Yellow SolidMelting…

Catalogue Number:D288470Chemical Name:5-Desamino 5-Oxo-2,5-dihydro LamotrigineSynonyms:3-Amino-6-(2,3-dichlorophenyl)-1,2,4-tryriazin-5(2H)-one; 3-Amino-6-(2,3-dichlorophenyl)-1,2,4-tryriazin-5(4H)-one; USP Lamotrigine Related Compound C; Lamotrigine Imp. A (EP);…

Catalogue Number:D288465Chemical Name:Desamino (aS)-Chloro Histidine Methyl EsterSynonyms:(S)-α-Chloro-1H-imidazole-4-propanoic Acid Methyl Ester;CAS Number:64407-67-6Molecular Formula:C₇H₉ClN₂O₂Molecular Weight:188.61Solubility:Dichloromethane, MethanolCategory:Building Blocks;…