99% Levodopa L-dopa Natural Extractive Levodopa L-dopa CAS No. 59-92-7 Molecular Formula C9H11NO4 Molecular weight 197.19 EINECS number: 200-445-2 Standard: Enterprise standard Natural / synthetic: natural Extract from: cat beans natural extraction Content: 99% Appearance: white powder Grain size: 80-120 Mesh Packing: 1kg / aluminum foil bag can be split Principle of action: antiparkinsonian drug. Through the blood-brain barrier into …