Product name	L-Proline
CAS No.	147-85-3
EINECS NO.	205-702-2
Molecular formula	C5H9NO2
molecular weight	115.1305
structural formula
Physical and Chemical Properties	Density 1.35 Melting point 228-233 ° C Specific rotation angle -85.5 ° (c=4, H2O) Water soluble solution
quality standard	AJI92
content	99.0~101.0%
character	The rhombohedral system is anhydrous, while the monoclinic system contains one molecule of crystal water; Odorless, with strong sweetness; Melting point is 200 ℃ (decomposition); Impurities have hygroscopicity; Because it is a sub amino acid, its properties are different from other amino acids; Very soluble in water (154.56g/100ml. 20 ℃) and ethanol, insoluble in isopropanol.
useage	Nutritional supplements, flavorings, and sugars undergo amino acid carbonyl reactions when heated together, which can generate special aroma substances. L-proline is one of the important amino acids for the synthesis of human proteins, an important raw material for amino acid infusion, and a major intermediate for the synthesis of first-line antihypertensive drugs such as Captopril and Enalapril. It has been widely used in industries such as food and medicine.