... ,4A-O-de(2,6-dideoxy-3-C-methyl-alpha-L-ribo- hexopyranosyl)-20-deoxo-20-[(3R,5S)-3,5-dimethyl ... (cis)-4A-O-de(2,6-Dideoxy-3-C-methyl-a-L-ribo-hexopyranosyl)- 20-deoxo-20-(cis-3,5-dimethylpiperidino)-tylosin6 ... : slightly yellowish powder 4) purity: ≥85% (Tilmicosin Phosphate)5) Indentification: A, PO4 3- B, UV6) Loss on drying: ≤5.0% 7 ...