Paclitaxel Impurity 44 | CAS 1055033-93-6 - Request Quote

Paclitaxel Impurity 44 is chemically (αR,βS)-β-(Benzoylamino)-α-tert-butyl(dimethyl)silyloxy-benzenepropanoic Acid (2aR,4S,4aS,6R,9S,11S,12S,12aR,12bS)-6,12b-Bis(acetyloxy)-2a,3,4,4a,5,6,9,10,11,12,12a,12b-dodecahydro-4-triethylsilyloxy-11-hydroxy-4a,8,13,13-tetramethyl-5-oxo-12-[(1-oxopentyl)oxy]-7,11-methano-1H-cyclodeca[3,4]benz[1,2-b]oxet-9-yl ester; (2aR,4S,4aS,6R,9S,11S,12S,12aR,12bS)-9-(((2R,3R)-3-benzamido-2-((tert-butyldimethylsilyl)oxy)-3-phenylpropanoyl)oxy)-11-hydroxy-4a,8,13,13-tetramethyl-5-oxo-12-(pentanoyloxy)-4-((triethylsilyl)oxy)-3,4,4a,5,6,9,10,11,12,12a-decahydro-1H-7,11-methanocyclodeca[3,4]benzo[1,2-b]oxete-6,12b(2aH)-diyl diacetate. It is also known as 7-O-(Triethylsilyl)-2’-O-Tert-Butyl(dimethyl)silyl 2-Debenzoyl Paclitaxel 2-Pentanoate. Paclitaxel Impurity 44 is supplied with detailed characterization data compliant with regulatory guideline. Paclitaxel Impurity 44 can be used for the analytical method development, method validation (AMV), Quality Controlled (QC) application for Abbreviated New Drug Application (ANDA) or during commercial production of Paclitaxel.

The product can be used as reference standards and further traceability against pharmacopeial standards (USP or EP) can be provided based on feasibility. SynZeal products are for analytical purpose only and not for human use.