Melting point :102-106 °C (lit.)
Boiling point :192-193 °C (lit.)
Density :1,37 g/cm³
vapor pressure :5 hPa (25 °C)
refractive index :1.4062 (estimate)
Flash point :192-193°C
storage temp. :Store below +30°C.
solubility :1.6g/l
form :Liquid
color :Clear colorless to faintly yellow
PH :4.0-6.0 (10g/l, H2O, 20℃)suspension
Water Solubility :Soluble in water (1.6 mg/ml at 20°C), methanol (30-36 mg/ml), ethanol (10 mg/ml at 25°C), DMSO (29 mg/ml at 25°C), and DMF (~12 mg/ml).
Merck :14,4287
BRN :774590
Henry's Law Constant :1.4×10¹ mol/(m³Pa) at 25℃, HSDB (2015)
Stability :Stable. Incompatible with acids, bases, oxidizing agents, reducing agents.
InChI :1S/C6H8O4/c1-9-5(7)3-4-6(8)10-2/h3-4H,1-2H3/b4-3+
InChIKey :LDCRTTXIJACKKU-ONEGZZNKSA-N
SMILES :[H]\C(=C(\[H])C(=O)OC)C(=O)OC
CAS DataBase Reference :624-49-7(CAS DataBase Reference)
NIST Chemistry Reference :2-Butenedioic acid (E)-, dimethyl ester(624-49-7)
EPA Substance Registry System :2-Butenedioic acid (2E)-, 1,4-dimethyl ester (624-49-7)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H312 Harmful in contact with skin Acute toxicity,dermal Category 4 Warning P280,P302+P352, P312, P322, P363,P501 H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H317 May cause an allergic skin reaction Sensitisation, Skin Category 1 Warning P261, P272, P280, P302+P352,P333+P313, P321, P363, P501 H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning H411 Toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 2
Precautionary statements:	P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P271 Use only outdoors or in a well-ventilated area. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection.