Tylosin tartrate CAS Number: 1405-54-5 Purity: â?¥98% Molecular Weight: 1066.19 Molecular Formula: C46H77NO17?C4H4O6 Appearance: Powder Physical State: Solid Solubility: Soluble in water Storage: Store at room temperature Synonym: Pharmasin Application: An antibiotic with a large macrocyclic lactone ring