Food Additives, Plant Extract, Amino Acid manufacturer / supplier in China, offering Amino Acid Material 1119-34-2 L-Arginine HCl 74-79-3 Base Powder L-Arginine, High Quality Amino Acid Powder L-Cystine for Feed Grade, L-Arginine Monohydrochloride (HCl) Powder CAS No.: 1119-34-2 and so on.