Melting point :45-47 °C(lit.)
Boiling point :79-82 °C (23 mmHg)
Density :1.24 g/cm3(Temp: 50 °C)
Flash point :10 °C
storage temp. :Sealed in dry,2-8°C
solubility :Acetone, Chloroform (Slightly), Dichloromethane, DMF, DMSO, Ethanol, Ethyl Acetate)
form :Crystalline Mass
color :Yellow to pale brown
Water Solubility :Insoluble in water. Soluble in acetone, chloroform, dichloromethane, DMF, DMSO, ethanol, ethyl acetate, hexane, methanol,THF and toluene.
Stability :Light Sensitive
InChIKey :LFZJRTMTKGYJRS-UHFFFAOYSA-N
CAS DataBase Reference :873-73-4(CAS DataBase Reference)
NIST Chemistry Reference :Benzene, 1-chloro-4-ethynyl-(873-73-4)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H228 Flammable solid Flammable solids Category 1 Category 2 Danger Warning P210, P240,P241, P280, P370+P378 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:	P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P302+P352 IF ON SKIN: wash with plenty of soap and water. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.