Melting point :50-52 °C (lit.)
Boiling point :80-84 °C/0.1 mmHg (lit.)
Density :1.1483 (rough estimate)
vapor pressure :3.4Pa at 25℃
refractive index :1.5286 (estimate)
Flash point :>230 °F
storage temp. :2-8°C
solubility :40.9g/l (experimental)
pka :6.7(at 25℃)
form :Crystalline Powder
color :Off-white to cream-beige
Water Solubility :Soluble in water.
Sensitive :Hygroscopic
BRN :1904978
LogP :1.58 at 23℃
CAS DataBase Reference :533-75-5(CAS DataBase Reference)
NIST Chemistry Reference :2,4,6-Cycloheptatrien-1-one, 2-hydroxy-(533-75-5)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501 H317 May cause an allergic skin reaction Sensitisation, Skin Category 1 Warning P261, P272, P280, P302+P352,P333+P313, P321, P363, P501 H410 Very toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 1 Warning P273, P391, P501
Precautionary statements:	P260 Do not breathe dust/fume/gas/mist/vapours/spray. P272 Contaminated work clothing should not be allowed out of the workplace. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.