Cabazitaxel Impurity 55

Name	9-dihydro-13-acetylbaccatin iii
Synonyms	Ddabvi 19-DHB Cabazitaxel Impurity 55 9-Dideacetyl baccatin VI 7,9-Dideacetylbaccatin VI 7,9-Dideacetyl baccatin VI 13-Acetyl-9-dihydrobaccatin III 13-Acetyl-9-Dihydrobaccatin Iii 9-dihydro-13-acetylbaccatin iii 9-DIHYDRO-13-ACETYL BACCATIN(9-DHB) 9-Dihydro-13-acetylbaccatinIII from Taxus canadensis (2alpha,5beta,7beta,9alpha,10beta,13alpha)-4,10,13-tris(acetyloxy)-1,7,9-trihydroxy-5,20-epoxytax-11-en-2-yl benzoate 2a,3,4,4a,5,6,9,10,12,12a-Decahydro-4a,8,13,13-tetramethyl-7,11-methano-1H-cyclodeca[3,4]benz[1,2-b]oxete-4,5,6,9,11,12,12b-heptol (2aR,4S,4aS,5R,6R,9S,11S,12S,12aR,12bS)-6,9,12b-triacetate 12-benzoate 7,11-Methano-1H-cyclodeca(3,4)benz(1,2-b)oxete-4,5,6,9,11,12,12b-heptol, 2a,3,4,4a,5,6,9,10,12,12a-decahydro-4a,8,13,13-tetramethyl-, 6,9,12b-triacetate 12-benzoate, (2aR-(2aalpha,4beta,4abeta,5alpha,6beta,9alpha,11alpha,12alpha,12aalph,12balpha))-
CAS	142203-65-4
InChI	InChI=1/C33H42O12/c1-16-21(42-17(2)34)14-33(40)28(44-29(39)20-11-9-8-10-12-20)26-31(7,22(37)13-23-32(26,15-41-23)45-19(4)36)27(38)25(43-18(3)35)24(16)30(33,5)6/h8-12,21-23,25-28,37-38,40H,13-15H2,1-7H3/t21-,22-,23+,25+,26-,27-,28-,31+,32-,33+/m0/s1

Molecular Formula	C33H42O12
Molar Mass	630.68
Density	1.36±0.1 g/cm3(Predicted)
Melting Point	171-175°C
Boling Point	704.5±60.0 °C(Predicted)
Flash Point	217.6°C
Solubility	Soluble in methanol, ethanol, DMSO and other organic solvents
Vapor Presure	7.81E-21mmHg at 25°C
Appearance	White crystalline powder
Color	White
pKa	12.61±0.70(Predicted)
Storage Condition	Inert atmosphere,2-8°C
Refractive Index	1.594
MDL	MFCD25541752
Physical and Chemical Properties	White crystalline powder, soluble in methanol, ethanol, DMSO and other organic solvents, derived from yew.

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Cabazitaxel Impurity 55

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