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. 2010 Mar 5;78(2):215–231. doi: 10.3797/scipharm.0912-14

Tab. 4.

Batch analysis of Impurities for different samples.

Name of the Product Docetere™ 80 mg Docetere™ 20 mg Taxotere® 80 mg

Batch No. A7469 A8252 A7486 A8331 D6D400

Months before Expiry 9 14 10 16 9

RRT K1 Name % Impurity
0.119 4.5 10-Deacetylbaccatin III ND ND ND ND ND
0.200 8.3 7-Epi-10-deacetylbaccatin III ND ND ND ND ND
0.233 9.8 7-Epi-10-oxo-10-deacetylbaccatin III ND ND ND ND ND
0.425 18.6 Placebo NA NA NA NA NA
0.447 19.8 Placebo NA NA NA NA NA
0.827 37.4 Placebo NA NA NA NA NA
0.872 39.5 Unknown 0.01 0.09 0.04 0.06 0.04
0.893 40.5 2′,3′-Eepidocetaxel ND ND ND ND ND
0.902 40.9 Unknown 0.09 0.11 0.02 0.04 0.00
0.945 42.9 2′-Epidocetaxel ND ND ND ND ND
0.967 43.9 Unknown 0.03 0.05 0.03 0.01 0.12
0.972 44.2 Oxetane ring opened impurity of Docetaxel ND ND ND ND ND
0.98 44.5 Unknown 0.01 0.01 0.01 0.05 0.01
1.00 45.5 Docetaxel NA NA NA NA NA
1.05 47.8 10-Oxodocetaxel 0.19 0.20 0.22 0.12 0.20
1.11 50.6 7′-Epidocetaxel 0.11 0.09 0.11 0.13 0.04
1.14 52.0 10-Oxo-7′-epidocetaxel 0.02 0.03 0.01 0.04 0.00
Total Impurities 0.45 0.45 0.32 0.45 0.41

NA = Not Applicable; ND = Not Detected