L-Pyroglutamic acid

JD012

Chinese name: L-pyroglutamic acid
Chinese synonym: 5-carboxypyrrolidone; (S)-(-)-2-pyrrolidone-5-carboxylic acid; L-pyroglutamic acid; 5-oxo-L-proline; L-2-pyrrolidone-5 -carboxylic acid; L-pyroic arginine; Α-aminoglutaric acid lactam; oxidized valine
English name: L-Pyroglutamic acid
English synonyms: 5-OXO-L-PROLINE; 5-oxoproline; 5-OXO-2-PYRROLIDINECARBOXYLIC ACID; L-GLUTIMINIC ACID; L-GLUTAMIC ACID LACTAM; (-)-L-PYROGLUTAMIC ACID; L-PYROGLUTAMIC ACID; -2-PYRROLIDONE-5-CARBOXYLIC ACID
CAS No.: 98-79-3
Molecular formula: C5H7NO3
Molecular weight: 129.11
EINECS number: 202-700-3
Related Categories: Amino Acids and Derivatives; Heterocycles; Pyrrolidine series; chiral; Pyroglutamic acid [Pyr, pGu]; Unusual Amino Acids; Amino Acids; Biochemistry; Biological-modified Amino Acids; for Resolution of Bases; Optical Resolution; Synthetic Organic Chemistry; Amino Acids;Nutraceuticals;Amino Acids;Amino Acids and Derivatives;Organic Acids;Chemical Biology;APIs;Amino Acids,Polypeptides;Amino Acids;Protected Amino Acids;Non-Natural Amino Acids;Pharmaceutical Intermediates;Intermediates;Pyrroles;Food Additives; Natural amino acid extreme derivatives; amino acids and derivatives; small molecule inhibitors; Amino acid; amino acid derivatives;

L-pyroglutamic acid
Melting point 160-163 °C (lit.)
Specific optical rotation -27.5 o (c=10, 1 N NaOH)
Refractive index -10 ° (C=5, H2O)
Storage conditions Store at RT.
Solubility H2O: 1 M at 20 °C, clear, colorless
Acidity coefficient (pKa) 3.32 (at 25 ° C)
Form Crystalline Powder
Color White to off-white
PH value 1.7 (50g/l, H2O, 20°C)
Water solubility 10-15 g/100 mL (20 oC)
Merck 14,8001
BRN 82132
Stable. Incompatible with bases, acids, strong oxidizing agents.
CAS Database 98-79-3 (CAS DataBase Reference)
NIST Chemical Information Pidolic acid(98-79-3)
EPA Chemical Information L-Proline, 5-oxo-(98-79-3)