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L-PANTOLACTONE Structure

L-PANTOLACTONE

Chemical Properties

Melting point 90-94 °C
Boiling point 120-122 °C/15 mmHg(lit.)
Density  1.1066 (rough estimate)
vapor pressure  8.44Pa at 25℃
refractive index  1.4730 (estimate)
storage temp.  2-8°C
solubility  Chloroform (Slightly), Methanol (Slightly), Water (Slightly)
form  Solid
pka 13.12±0.40(Predicted)
color  White to Off-White
optical activity [α]22/D +50.0°, c = 0.5 in H2O
Water Solubility  Soluble in water, hardly soluble in alcohol.
BRN  4659425
LogP -0.69 at 21℃ and pH6.3-6.5
Surface tension 71.69mN/m at 1g/L and 20℃
CAS DataBase Reference 5405-40-3(CAS DataBase Reference)
FDA UNII FD4U4CPB7D

Safety

Symbol(GHS) GHS hazard pictograms
Signal wordDanger
Hazard statements H318
Precautionary statements P280-P305+P351+P338
Hazard Codes  Xi
Risk Statements  41
Safety Statements  26-39
WGK Germany  3
F  3-10
HS Code  2932190090
NFPA 704:
1
2 0

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