Crotonic anhydride
Synonym(s):trans -Crotonic anhydride;2-Butenoic anhydride;Crotonic anhydride
- CAS NO.：623-68-7
- Empirical Formula: C8H10O3
- Molecular Weight: 154.17
- MDL number: MFCD00009286
- EINECS: 210-807-1
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 13:16:57
What is Crotonic anhydride?
Chemical properties
Colorless to pale yellow liquid
Synthesis Reference(s)
Tetrahedron Letters, 33, p. 593, 1992 DOI: 10.1016/S0040-4039(00)92318-9
Safety Profile
Moderately toxic by ingestion. A skin irritant. When heated to decomposition it emits acrid smoke and irritating fumes.
Properties of Crotonic anhydride
| Melting point: | -20°C |
| Boiling point: | 248 °C(lit.) |
| Density | 1.04 g/mL at 25 °C(lit.) |
| vapor pressure | 1 hPa (25 °C) |
| refractive index | n |
| Flash point: | 231 °F |
| storage temp. | Store below +30°C. |
| solubility | soluble in Ether |
| form | clear liquid |
| color | Colorless to Light orange to Yellow |
| CAS DataBase Reference | 623-68-7(CAS DataBase Reference) |
| EPA Substance Registry System | 2-Butenoic acid, anhydride (623-68-7) |
Safety information for Crotonic anhydride
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05  Environment GHS09 |
| GHS Hazard Statements |
H314:Skin corrosion/irritation H400:Hazardous to the aquatic environment, acute hazard |
| Precautionary Statement Codes |
P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P363:Wash contaminated clothing before reuse. 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. |
Computed Descriptors for Crotonic anhydride
Crotonic anhydride manufacturer
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