[200689-250G] Ethyl cellulose viscosity 10 cP, 5 % in toluene/ethanol 80:20(lit.), extent of labeling: 48% ethoxyl + 339,460원
[200689-500G] Ethyl cellulose viscosity 10 cP, 5 % in toluene/ethanol 80:20(lit.), extent of labeling: 48% ethoxyl + 414,150원