Items

Specification

Appearance:

White or off-white crystalline powder.

Identification: UV Absorption

Complies

Water (by KF)

Not more than 1.0%

Arsenic

Not more than 2ppm

Heavy metals

Not more than 5ppm

Specific rotation:

-48 to -52

Melting point:

215-217 Celsius degree

Impurities:

Cephalomannine

10-Deacetyl-7-Epi-Taxol

7-Epi-Taxol

Individual Unknown:

Total Unknown:

Total Impurities

Not more than 0.5%

Not more than 0.5%

Not more than 0.5%

Not more than 0.1%

Not more than 0.5%

Not more than 1.0%

Organic Volatile Impurities:

Chloroform

Methylene Chloride

Petroleum Ether

Ethanol

Acetone

Ethyl Acetate

Not more than 60ppm

Not more than 100ppm

Not more than 100ppm

Not more than 100ppm

Not more than 100ppm

Not more than 100ppm

Assay (by HPLC):

Not less than 99.5%