Melting point :144-149 °C
Boiling point :240.83°C (rough estimate)
Density :1.2268 (rough estimate)
refractive index :1.4954 (estimate)
Water Solubility :Soluble in water
form :powder to crystal
pka :11.59±0.10(Predicted)
color :White to Almost white
BRN :4372703
CAS DataBase Reference :2157-56-4(CAS DataBase Reference)
EPA Substance Registry System :2,4-Pentanedione, dioxime (2157-56-4)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:	P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405 Store locked up.