Paclitaxel EP Impurity H Catalogue No. - VL940005 CAS No. - 78454-17-8 Molecular Formula - C₄₅H₄₉NO₁₃ Molecular Weight - 811.87 IUPAC Name - 10-Deacetyl-7-epi-taxol Synonyms - Paclitaxel Related compound B / 7-Epi 10-Desacetyl Paclitaxel / 10-O-Deacetyl-7-epi-paclitaxel