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1,3-Dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone Structure

1,3-Dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone

Chemical Properties

Melting point -20 °C
Boiling point 146 °C44 mm Hg(lit.)
Density  1.06 g/mL at 25 °C(lit.)
vapor pressure  0.5 hPa (57 °C)
refractive index  n20/D 1.488(lit.)
Flash point 121 °C
storage temp.  Store below +30°C.
solubility  Chloroform (Slightly), Ethyl Acetate (Slightly)
pka -0.65±0.20(Predicted)
form  Liquid
color  Clear colorless to slightly yellow
PH 11 (100g/l, H2O, 20℃)
explosive limit 1.6-9.3%(V)
Water Solubility  soluble
Sensitive  Hygroscopic
BRN  110562
Dielectric constant 36.119999999999997
Stability Hygroscopic
InChIKey GUVUOGQBMYCBQP-UHFFFAOYSA-N
LogP 0.05 at 25℃
CAS DataBase Reference 7226-23-5(CAS DataBase Reference)
EWG's Food Scores 1-2
EPA Substance Registry System 2(1H)-Pyrimidinone, tetrahydro-1,3-dimethyl- (7226-23-5)

Safety

Symbol(GHS)
Signal wordDanger
Hazard statements H302-H318-H361f
Precautionary statements P201-P280-P301+P312+P330-P305+P351+P338+P310-P308+P313
Hazard Codes  Xn
Risk Statements  22-36-43-62-41
Safety Statements  23-26-36/37/39-45
WGK Germany  2
RTECS  UW7582500
3-10
Autoignition Temperature 255 °C
TSCA  Yes
HS Code  29335995
Toxicity LD50 orally in Rabbit: 1770 mg/kg
NFPA 704:
1
2 1

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