Catalogue Number:D230330Chemical Name:1,2-DehydroprogesteroneSynonyms:1-Dehydroprogesterone; NSC 63538; Δ1-ProgesteroneCAS Number:1162-54-5Molecular Formula:C₂₁H₂₈O₂Appearance:White to Off-White SolidMelting Point:149-151°CMolecular Weight:312.45Storage:-20°CSolubility:Chloroform (Slightly), DMSO…

Catalogue Number:D230320Chemical Name:6,7-DehydrohyoscyamineSynonyms:6,7-Didehydrohyoscyamine; 3(S)-endo]-α-(Hydroxymethyl)benzeneacetic Acid, 8-Methyl-8-azabicyclo[3.2.1]oct-6-en-3-yl Ester; 6,7-DehydrohyoscyamineCAS Number:61616-97-5Molecular Formula:C₁₇H₂₁NO₃Appearance:Colourless to Pale Beige Sticky Oil…

Catalogue Number:D230313Chemical Name:11-Dehydro-6a,17-dihydroxy-corticosterone 21-AcetateSynonyms:(6α)-21-(Acetyloxy)-6,17-dihydroxy-pregn-4-ene-3,11,20-trione; 2-((6S,8S,9S,10R,13S,14S,17R)-6,17-Dihydroxy-10,13-dimethyl-3,11-dioxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl AcetateCAS Number:66978-87-8Molecular Formula:C₂₃H₃₀O₇Appearance:Pale Yellow SolidMolecular Weight:418.48Solubility:Acetone, MethanolCategory:Standards; Steroids; Pharmaceutical/API Drug…

Catalogue Number:D230310Chemical Name:DehydronitrosonisoldipineSynonyms:2,6-Dimethyl-4-(2-nitrosophenyl)-3,5-pyridinedicarboxylic Acid 3-Methyl 5-(2-Methylpropyl) Ester; 2,6-Dimethyl-4-(2-nitrosophenyl)-3,5-pyridinedicarboxylic Acid Methyl 2-Methylpropyl Ester; 5-Methyl 3-(2-Methylprop-3-yl) 2,6-Dimethyl-4-(2-nitrosophenyl)pyridine-3,5-dicarboxylate;…

Catalogue Number:D230308Chemical Name:11-Dehydro-6b,17-dihydroxy-corticosterone 21-AcetateSynonyms:6β,17,21-Trihydroxy-pregn-4-ene-3,11,20-trione 21-Acetate; NSC 15477; 2-((6R,8S,9S,10R,13S,14S,17R)-6,17-Dihydroxy-10,13-dimethyl-3,11-dioxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl AcetateCAS Number:13096-52-1Molecular Formula:C₂₃H₃₀O₇Appearance:Off-white SolidMolecular Weight:418.48Solubility:Acetone, MethanolCategory:Standards; Steroids;…

Catalogue Number:D230300Chemical Name:Dehydro RifaximinSynonyms:[2S-(2R*,16Z,18E,20R*,21R*,22S*,23S*,24S*,25R*,26S*,27R*,28E)]-25-(Acetyloxy)-5,21,23-trihydroxy-27-methoxy-2,4,11,16,20,22,24,26-octamethyl-6H-27-(epoxypentadeca[1,11,13]trienonitrilo)benzofuro[4,5-e]pyrido[1,2-a]benzimidazole-1,6,15(2H)-trione; Rifaximin EP Impurity G;Impurity:Rifaximin EP Impurity GCAS Number:80621-76-7Molecular Formula:C₄₃H₄₉N₃O₁₁Appearance:Very Dark Red…

Catalogue Number:D230295Chemical Name:8-DehydrocholesterolSynonyms:Cholesta-5,8-dien-3β-olCAS Number:70741-38-7Molecular Formula:C₂₇H₄₄OAppearance:White to Pale Yellow SolidMelting Point:>100ºC (dec.)Molecular Weight:384.64Storage:-20°CSolubility:Chloroform (Slightly), Methanol (Slightly)Category:Standards;…

Catalogue Number:D230285Chemical Name:5-Dehydroxy (3S)-AtorvastatinSynonyms:(δS)-2-(4-Fluorophenyl)-δ-hydroxy-5-(1-methylethyl)-3-phenyl-4-[(phenylamino)carbonyl]-1H-pyrrole-1-heptanoic Acid;CAS Number:887196-26-1Molecular Formula:C₃₃H₃₅FN₂O₄Molecular Weight:542.64Category:Standards; Pharmaceutical/API Drug Impurities/Metabolites;Applications:5-Dehydroxy (3S)-Atorvastatin is an impurity…

Catalogue Number:D230275Chemical Name:Dehydro LevetiracetamSynonyms:Levetiracetam Impurity B; 2-(2-Oxo-pyrrolidin-1-yl)-but-2-enoic Acid Amide; Levetiracetam EP Impurity BImpurity:Levetiracetam EP Impurity…

Catalogue Number:D230270Chemical Name:(S)-5,6-Dehydro PregabalinSynonyms:(3S)-3-(Aminomethyl)-5-methyl-5-hexenoic Acid;CAS Number:1141362-94-8Molecular Formula:C₈H₁₅NO₂Appearance:White SolidMelting Point:175-180°CMolecular Weight:157.21Storage:4°CSolubility:Methanol (Slightly), Water (Slightly)Category:Standards; Pharmaceutical/API Drug…