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DL-Pyroglutamic acid Structure

DL-Pyroglutamic acid

Chemical Properties

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
InChIKey ODHCTXKNWHHXJC-UHFFFAOYSA-N
LogP 0.065 at 21.1℃
CAS DataBase Reference 149-87-1(CAS DataBase Reference)
FDA UNII 6VT1YZM21H
NIST Chemistry Reference DL-5-Oxoproline(149-87-1)
UNSPSC Code 12352106
NACRES NA.22
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Safety

Symbol(GHS) GHS hazard pictogramsGHS hazard pictograms
Signal wordWarning
Hazard statements H318-H302-H315-H319-H335
Precautionary statements P261-P305+P351+P338-P280a-P304+P340-P405-P501a
Hazard Codes  Xn,Xi
Risk Statements  22-36/37/38
Safety Statements  26-37/39
WGK Germany  3
HazardClass  IRRITANT
HS Code  29337900
NFPA 704:
1
3 0

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