water-soluble azithromycin 70% CAS NO : 83905-01-5 MF : C38H72N2O12 MW : 748.9845 Molecular Weight 748.99 Properties : white or almost white crystalline powder; odorless, bitter taste; cited moist, easility soluble in water. Inspection Solubility: 1g this product should be soluble in 25ml water. Application : 1.Semi-synthetic macrolide antibiotic; 2.related to Erythromycin A; 3.Antibacterial