DL-Pyroglutamic acid

Melting point :183-185 °C(lit.)
Boiling point :239.15°C (rough estimate)
Density :1.3816 (rough estimate)
vapor pressure :0Pa at 25℃
refractive index :1.4220 (estimate)
storage temp. :Sealed in dry,Room Temperature
solubility :52g/l
pka :3.48±0.20(Predicted)
form :Crystalline Powder
color :White
PH :1.7 (50g/l, H2O, 20℃)
Water Solubility :5.67 g/100 mL (20 ºC)
BRN :82131
Major Application :peptide synthesis
InChI :1S/C5H7NO3/c7-4-2-1-3(6-4)5(8)9/h3H,1-2H2,(H,6,7)(H,8,9)
InChIKey :ODHCTXKNWHHXJC-UHFFFAOYSA-N
SMILES :OC(=O)C1CCC(=O)N1
LogP :0.065 at 21.1℃
CAS DataBase Reference :149-87-1(CAS DataBase Reference)
NIST Chemistry Reference :DL-5-Oxoproline(149-87-1)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501 H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H318 Causes serious eye damage Serious eye damage/eye irritation Category 1 Danger P280, P305+P351+P338, P310 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:	P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405 Store locked up.