About Genexol > Information > Specification
Test Specification Method
Appearance White to white-yellowish,
practically odorless, powder
Visual
Residue on Ignition Not more than 0.2% USP 26
Heavy Metals NMT 0.002 USP 26
Assay 97 .0¡© 102.0% USP 26
Related Compounds Total NMT 2.0% USP 26
Baccatin III NMT 0.2%
10-Deacetylpaclitaxel NMT 0.5%
7-Xylosylpaclitaxel NMT 0.2%
Cephalomannine a1 1
2¡±,3¡±-Dihydrocephalomannine a1 1
10-Deacety-7-Epipaclitaxel NMT 0.5%
Benzyl Analog b1 2
3¡±4¡±-Dehydropaclitaxel C b1 2
7-Epicephalomannine NMT 0.3%
7-Epipaclitaxel NMT 0.5%
Organic volatile Impurities USP 26
Chloroform NMT 60 PPM
1,4-Dioxane NMT 380 PPM
Methylene Chloride NMT 600 PPM
Trichloroethylene NMT 80 PPM
Methanol NMT 3000 PPM
Hexane 3 NMT 29 PPM
Water Content NMT 4.0% USP 26
Bacterial Endotoxins NMT 0.4 EU/mg USP 26a
Microbial Limit NMT 100 CFU/g 3 USP 26
Identitfication Idenfical to Standard USP 26
Specific Rotation -49.0¢ª -55.0¢ª USP 26
The sum of a1 and a2 is not more than 0.5%.
The sum of b1 and b2 is not more than 0.5%.
It must meet the requirements of the tests for the absence of Staphylococcus
  aureus, Pseudomonas aeruginosa, Salmonella species, and Escherichia coli.
  Storage Condition Store at room temperature in desiccator.