... pharmaceutical industry Brief introduction Index itemSpecificationGP typeGPE typePPE typeHR-4typeAppearance M.W.3000-36003000-3600>=4000White, light yellow or milk-white later ... , such as terramycin, acheomycin, Penicillin, monosodium glutamate, yeast, inosine, citric acid, ect. They are also used in the chemical, textile, printing ...