L-Pyroglutamic acid

Catalog	BBC98793
CAS	98-79-3
Structure
Synonyms	2-L-Pyrrolidone-5-carboxylicacid
IUPAC Name	(2S)-5-Oxopyrrolidine-2-carboxylic acid
Molecular Weight	129.11
Molecular Formula	C5H7NO3
Canonical SMILES	C1CC(=O)NC1C(=O)O
InChI	InChI=1S/C5H7NO3/c7-4-2-1-3(6-4)5(8)9/h3H,1-2H2,(H,6,7)(H,8,9)/t3-/m0/s1
InChI Key	ODHCTXKNWHHXJC-VKHMYHEASA-N
Boiling Point	239.15 °C
Melting Point	160-163 °C(lit.)
Flash Point	227.8 °C
Purity	98%
Density	1.3816 g/cm³
Appearance	White to off-white crystalline powder
Storage	2-8 °C
pH	1.7 (50g/l, H₂O, 20°C)
pKa	3.32(at 25 °C)
Refractive Index	-10 ° (C=5, H₂O)
Solubility in Water	100-150 g/L