Triamilide antibiotic for treatment of bovine and porcine respiratory disease. Exists as an equilibrium mixture of two isomeric forms, Tulathromycin A (90%) and B (10%). Antibacterial.Appearance:Supplied as a white solid.Purity:≥95%Melting Point:186-188ºCSolubility:Methanol (Slightly)Method for Determining Identity:Proton NMR (CD3OD) Spectroscopic and Mass Spectrometric AnalysisTLC Conditions:SiO2; Dichloromethane: Methanol: Ammonium Hydroxide= 9:1:0.1; Visualized with KMnO4 and AMCS; Single spot, Rf=0.50Specific Rotation:-35.5º (c=0.5, Methanol)Atmosphere: inert gasStorage and Stability:May be stored at RT for short-term only. Long-term storage is recommended at -20°C for 6 months after receipt. Store under inert atmosphere. For maximum recovery of product, centrifuge the original vial prior to removing the cap. Store under inert atmosphere.