CAS : 98-79-3
formula : C5H7NO3
MW : 129.11
Melting Point : 152-162 ° C
Chinese name : 5-oxo-L - proline; L-pyroglutamic acid; L - 2-pyrrolidone-5-carboxylate; L-histidine plastic Coke sexual
English name : L-Pyroglutamic acid; 5-oxo-L-PROLINE ;(-)- 2-pyrrolidone-5-carboxylic acid; (-) - pyroglutamic acid; (5s) - 2-oxopyrrolidine-5-carboxylic acid; (s) - 2-pyrrolidone-5-carboxylic acid; 2-benzothiazolesulfenic acid morpholide; 2-pyrrolidinone-5-carboxylic acid; 5-FRAP-2 - pyrrolidinone; 5-oxoproline
nature Description : colorless crystal. Melting point 162-163 ° C, soluble in water; Alcohol; Glacial acetic acid and acetone, ethyl acetate - soluble and insoluble in ether.
production methods : a semi-synthetic method; Enzymatic conversion law and the whole synthesis. Industrial production is the primary means of glutamic acid semi-synthesis. 42% of glutamic acid solution heated at 140 ° C for 3 to be L-pyroglutamic acid as the main component of the reaction solution. After decompression concentration; Crystallization; Washing; Dry derived L-glutamate coke conversion rate of 94%.
purposes : for organic synthesis intermediates, food additives.
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