Name:L-Prroglutamic Acid

CAS No.:98-79-3

Chemical name:(S)-(-)-2-Pyrrolidone-5-carboxylic acid

Product sort: pharmaceutical intermediate and other fine chemicals

Molecular formula:C₅H₇NO₃

Molecular weight:129.12

Structural formula:
                             
Specification:In-house Standard
Quality Index :

Item	Specification
Specific Rotatory Power [a]D20	- 10.5 ° to - 12.3 °
State of solution	not less than 98.5 to 100%
Chloride [CL]	Not more than 0.02%
Residue on ignition	Not more than 0.10%
Iron salt [Fe]	Not more than 10 ppm
Heavy metals [Pb]	Not more than 10 ppm
Arsenic salt	Not more than 1 ppm
Other amino acids	The color layer can not be detected.
Loss on drying	Not more than 0.50%
Assay	98.5 - 101.0%
fnp	160.1 to 161.2

Appearance:White crystal

Packing specification:25kg/pail, with the lining of two layers of polyethylene bag.