Name | 3,4,5,6-Tetrahydrophthalimide |
Synonyms | TETRAHYDROTHALIMIDE Phthalimide, tetrahydro Phthalimide, tetrahydro- Cyclohexene-1,2-dicarboximide 3,4,5,6-Tetrahydrophthalimide cis-1,2,3,6-Tetrahydrophthalimide CIS-1,2,3,6-tetrahudrophthalimide cis-4-Cyclohexene-1,2-dicarboximide 4,5,6,7-Tetrahydroisoindole-1,3-dione 1H-Isoindole-1,3(2H)-dione, tetrahydro- 4,5,6,7-tetrahydro-1H-isoindole-1,3(2H)-dione |
CAS | 27813-21-4 |
EINECS | 248-667-9 |
InChI | InChI=1/C8H9NO2/c10-7-5-3-1-2-4-6(5)8(11)9-7/h1-4H2,(H,9,10,11) |
Molecular Formula | C8H9NO2 |
Molar Mass | 151.16 |
Density | 1.2023 (rough estimate) |
Melting Point | 129-133°C(lit.) |
Boling Point | 273.17°C (rough estimate) |
Flash Point | 158.1°C |
Vapor Presure | 0.000247mmHg at 25°C |
Storage Condition | 2-8℃ |
Refractive Index | 1.5810 (estimate) |
Physical and Chemical Properties | White crystalline powder |
Hazard Symbols | Xn - Harmful |
Risk Codes | R20/21 - Harmful by inhalation and in contact with skin. |
Safety Description | S24/25 - Avoid contact with skin and eyes. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S7 - Keep container tightly closed. |
WGK Germany | 3 |
RTECS | GW4635000 |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
production method | maleic anhydride is added to a reaction kettle, heated until it is fully melted, solvent benzene is added under stirring, after stirring is miscible, stirring is continued and heated to 100~110 ℃, C4 fraction or butadiene is introduced for diene addition reaction. After the reaction, the solvent benzene is steamed out, cooled by the condenser and recycled. The reaction liquid is filtered and dried to obtain the finished product. The conversion rate of maleic anhydride can reach 100%. |