L-Proline, L-Serine, L-Tyrosine manufacturer / supplier in China, offering 100% Purity API Antibiotic Sparfloxacin CAS No.: 111542-93-9, Good Quality L-Lysine L-Glutamate Powder Onlie with Wholesale Price CAS: 5408-52-6, Best Price L-Citrulline Powder CAS 372-75-8/L-Citrulline Dl-Malate 1: 1 CAS 54940-97-5 and so on.