[200654-250G] Ethyl cellulose viscosity 300 cP, 5 % in toluene/ethanol 80:20(lit.), extent of labeling: 48% ethoxyl + 268,400원
[200654-500G] Ethyl cellulose viscosity 300 cP, 5 % in toluene/ethanol 80:20(lit.), extent of labeling: 48% ethoxyl + 315,590원