Product Name L-Proline CAS 147-85-3 Appearance White Powder MF C5H9NO2 MW 115.13 EINECS 205-702-2 Boiling Point 215.41¡ãC (rough estimate) Melting Point 228 ¡ãC (dec.) (lit.) Density 1.35 FEMA 3319 Acidity Coefficient 1.95, 10.64(at 25¡æ) PH 6.0-7.0 Storage Dry and cool place Place of origin ShiJiaZhuang,China L-Proline is used in food additives, flavor agents.