| Name | Fumaric Acid Impurity 11 |
| Synonyms | Fumaric Acid Impurity 11 ethyl methyl fumarate 2-Butenedioic acid (2E)-, 1-ethyl 4-methyl ester Vanillin Impurity 14 Fumaric Acid Impurity 4 |
| CAS | 4749-70-6 |
| Molecular Formula | C7H10O4 |
| Molar Mass | 158.15 |
| Density | 1.0717 g/cm3(Temp: 25 °C) |
| Boling Point | 40-41 °C(Press: 0.01 Torr) |