CAS No: 149-87-1, Chemical Name: DL-Pyroglutamic acid
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149-87-1 DL-Pyroglutamic acid

product Name DL-Pyroglutamic acid
Synonyms DL-2-Pyrrolidone-5-Carboxylic Acid; Dl-5-Oxoproline; H-Dl-Pyr-Oh; Dl-Proline, 5-Oxo-; (+/-)-2-Pyrrolidone-5-Carboxylic Acid; 2-Pyrrolidone-5-Carboxylic Acid; (+/-)-2-Pyrrolidinone-5-Carboxylic Acid; 5-Oxo-Dl-Proline; Dl-A-Pyroglutamic Acid; Dl-Glutamic Acid Lactam; 5-oxo-L-proline
Molecular Formula C5H7NO3
Molecular Weight 129.114
InChI InChI=1/C5H7NO3/c7-4-2-1-3(6-4)5(8)9/h3H,1-2H2,(H,6,7)(H,8,9)/t3-/m0/s1
CAS Registry Number 149-87-1
EINECS 205-748-3
Molecular Structure 149-87-1 DL-Pyroglutamic acid
Density 1.38g/cm3
Melting point 180-185℃
Boiling point 453.1°C at 760 mmHg
Refractive index 1.511
Flash point 227.8°C
Water solubility 5.67 g/100 mL (20℃)
Vapour Pressur 1.79E-09mmHg at 25°C
Hazard Symbols  Xi:Irritant;
Risk Codes R36/37/38:;
Safety Description S26:;
S37/39:;