Veterinary Medicine Tilmicosin Base

1.Chemical name :
tylosin,4A-O-de(2,6-dideoxy-3-C-methyl-alpha-L-ribo-hexopyranosyl)-20-deoxy-20-(3,5-dimethyl-1-piperidinyl)-(20(cis: trans))

2.Appearance: white or off white crystalline powder

3.Molecular formula: C46H80N2O13

4.Molecular weight: 869.15

5.Standard : USP230
6.Assay=85 %
7.water =5.0 %
8.cis isomer82.0-88.0%
9.trans isomer12.0-18.0
10.Individual impurities=3%



Total impurities=10%
Veterinary Medicine Tilmicosin Base