Melting point :125-128 °C(lit.)
Boiling point :238.75°C (rough estimate)
Density :1.85
refractive index :1.4730 (estimate)
Flash point :212 °F
storage temp. :Store below +30°C.
solubility :27g/l
form :Crystalline Powder
pka :0.28±0.44(Predicted)
color :White to light beige
PH :2.4 (27g/l, H2O, 20℃)
Water Solubility :SOLUBLE IN HOT WATER
Merck :14,6297
BRN :1705641
Surface tension :72.58mN/m at 998g/L and 21℃
CAS DataBase Reference :87-56-9(CAS DataBase Reference)
NIST Chemistry Reference :Mucochloric acid(87-56-9)
EPA Substance Registry System :2-Butenoic acid, 2,3-dichloro-4-oxo-, (2Z)- (87-56-9)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H301 Toxic if swalloed Acute toxicity,oral Category 3 Danger P264, P270, P301+P310, P321, P330,P405, P501 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 H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:	P260 Do not breathe dust/fume/gas/mist/vapours/spray. P270 Do not eat, drink or smoke when using this product. 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.