Specification Product Name EOSIN YELLOW (W.S.) CAS NO. 17372-87-1 BATCH NO. EYWS-17/11 C.I. NO. 45380 Molecular Formula C21H6Br4Na2O5 Molecular Weight 691.88 Appearance Brownish Red Powder Structure     Tests    Limits Solubility 0.1%/ (in water) - Clear Reddish Yellow Solution Absorptivity 1%/1Cm at λ max.516.0nm - 1200 - 1400 Loss On Drying at 110°C - 8%         REVISED: 1-1-2012