1.Tilmicosin phosphate . 2.Best quality and package. 3.Assay >70%. 4.Form powder. 5.Reply offer quickly.

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Item	Index					Result
Appearance	Almost white or yellowish crystalline powder					Yellow powder
Identification	1) The retention time of the major peak in the chromatogram of the assay preparation corresponds to that of the standard preparation obtained as specified in the assay					Complies
	2) Complies with the phosphate identification test					Complies
Related substances	Individual impurity 3.0% max					2.22%
	Total impurity 10.0% max					5%
Water	5.0% max					2.8%
PH	5.0-8.0					6.8
Tilmicosin cis-isomer	82.0-88.0%					85.8%
Tilmicosin trans-isomer	12.0-18.0%					14.2%
Assay	Content of C46H80N2O13 (on dried basis) ≥75.0%					79.2%

Tilmicosin phosphate