Melting point :1-3 °C(lit.)
Boiling point :74-76 °C40 mm Hg(lit.)
Density :1.183 g/mL at 25 °C(lit.)
vapor pressure :10 mm Hg ( 20 °C)
refractive index :n20/D 1.488(lit.)
Flash point :129 °F
storage temp. :2-8°C
Odor :Characteristic; sweet, pungent.
CAS DataBase Reference :764-41-0(CAS DataBase Reference)
EPA Substance Registry System :1,4-Dichloro-2-butene (764-41-0)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H226 Flammable liquid and vapour Flammable liquids Category 3 Warning 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 H330 Fatal if inhaled Acute toxicity,inhalation Category 1, 2 Danger P260, P271, P284, P304+P340, P310,P320, P403+P233, P405, P501 H350 May cause cancer Carcinogenicity Category 1A, 1B Danger 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:	P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. 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.