1) Cat. No.: TRC-I789502; 2) Chemical Name: Iso Cephalomannine-d3; 3) CAS No.: ; 4) Mol. Formula: C45H50D3NO14; 5) Mol. Weight: 834.92; 6) Packing Size: 0.5mg / 5mg; 7) Appearence: White Solid; 8) Application Notes: Labelled Iso Cephalomannine (I789500). Iso Cephalomannine is a Cephalomannine (C258500) isomer as an impurity in Paclitaxel (P132500) active pharmaceutical ingredient. Paclitaxel impurity A. ; 9) Synonym: (αR,βS)-β-(Benzoylamino)-α-hydroxybenzenepropanoic 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-4,11-dihydroxy-4a,8,13,13-tetramethyl-12-[[(2E)-2-methyl-1-oxo-2-buten-1-yl]oxy]-5-oxo-7,11-methano-1H-cyclodeca[3,4]benz[1,2-b]oxet-9-yl-d3 Ester; 2-Debenzoyl-2-tigloylpaclitaxel-d3; Isocephalomannine-d3; ; 10) Solubility: Chloroform, Methanol; 11) Storage condition: Hygroscopic, -20C Freezer, Under Inert Atmosphere; 12) References: Kerns, E., et al.: Drug Info J., 32, 471 (1998), Darrington, R., et al.: J. Pharm. Sci., 93, 838 (2004),