Acetylacetone
Acac redirects here. For other uses, see ACAC.
Acetylacetone
IUPAC name
Pentane-2,4-dione
Other names
Hacac
Molecular formula
C5H8O2
Molar mass
100.13 g/mol
CAS number
Density
0.98 g/ml
Solubility
16 g/100 mL
Melting point
−23 °C
Boiling point
140 °C
SMILES
CC(=O)CC(=O)C
Hazards
EU classification
Harmful (Xn)
EU Index
606-029-00-0
NFPA 704
2
2
0
R-phrases
R10, R22
S-phrases
(S2), S21, S23, S24/25
Flash point
34 °C
Autoignition
temperature
340 °C
Explosive limits
2.4–11.6%
Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)
Infobox disclaimer and references
Acetylacetone is an organic compound with molecular [...]