Basic information Description References Safety Related Supplier
3-Hydroxy-2-methyl-4H-pyran-4-one Structure

3-Hydroxy-2-methyl-4H-pyran-4-one

Chemical Properties

Melting point 160-164 °C(lit.)
Boiling point 205 °C
Density  1.046 g/mL at 25 °C
vapor pressure  0.15Pa at 24℃
refractive index  n20/D 1.541
FEMA  2656 | MALTOL
Flash point 198 °F
storage temp.  2-8°C
solubility  methanol: 50 mg/mL, clear
pka 8.41±0.10(Predicted)
form  Liquid
color  Clear colorless
PH 5.3 (0.5g/l, H2O)
Odor at 5.00 % in benzyl alcohol. sweet caramel cotton candy jam fruity baked bread
Odor Type caramellic
explosive limit 25%
Water Solubility  1.2 g/100 mL (25 ºC)
Merck  14,5713
JECFA Number 1480
BRN  112169
InChIKey XPCTZQVDEJYUGT-UHFFFAOYSA-N
LogP 2.3 at 25℃
CAS DataBase Reference 118-71-8(CAS DataBase Reference)
NIST Chemistry Reference 3-Hydroxy-2-methyl-4h-pyran-4-one(118-71-8)
EPA Substance Registry System Maltol (118-71-8)

Safety Information

Hazard Codes  Xn,Xi
Risk Statements  22-38-36/37/38-41-20/22
Safety Statements  37-37/39-26-36-36/37/39-36/37
RIDADR  UN 3334
WGK Germany  3
RTECS  UQ1050000
Autoignition Temperature 1364 °F
Hazard Note  Irritant
TSCA  Yes
HS Code  29329995
Hazardous Substances Data 118-71-8(Hazardous Substances Data)

MSDS

Usage And Synthesis

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