| mp  | 
−10 °C(lit.)
  | 
| bp  | 
225 °C(lit.)
  | 
| density  | 
1.064 g/mL at 25 °C(lit.)
  | 
| vapor density  | 
5.93 (vs air)
  | 
| vapor pressure  | 
1 mm Hg ( 14 °C)
  | 
| refractive index  | 
n20/D 1.441(lit.)
  | 
| Fp  | 
200 °F
  | 
| Water Solubility  | 
insoluble | 
| Merck  | 
14,3123 | 
| BRN  | 
1100825 | 
| Stability: | 
Stable. Combustible. Incompatible with oxidizing agents, bases, acids, reducing agents. | 
| CAS DataBase Reference | 
141-05-9(CAS DataBase Reference) | 
| NIST Chemistry Reference | 
2-Butenedioic acid (Z)-, diethyl ester(141-05-9) | 
| EPA Substance Registry System | 
2-Butenedioic acid (2Z)-, diethyl ester(141-05-9) |