Other grades of this product :
| Crotonic anhydride Basic information |
| Product Name: | Crotonic anhydride | | Synonyms: | 2-Butenoicacid,anhydride;anhydridkyselinykrotonove;crotonicacidanhydride;CROTONIC ANHYDRIDE;2-butenoic anhydride;TRANS-2-BUTENOIC ANHYDRIDE;2-Butensureanhydrid;CROTONSAEUREANHYDRID | | CAS: | 623-68-7 | | MF: | C8H10O3 | | MW: | 154.17 | | EINECS: | 210-807-1 | | Product Categories: | Pharmaceutical Intermediates | | Mol File: | 623-68-7.mol |
| Crotonic anhydride Chemical Properties |
| 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 | n20/D 1.473(lit.) | | Fp | 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) |
| Hazard Codes | C | | Risk Statements | 34 | | Safety Statements | 26-36/37/39-45 | | RIDADR | UN 3265 8/PG 3 | | WGK Germany | 3 | | RTECS | GQ6125000 | | Autoignition Temperature | 290 °C | | HS Code | 2916 19 95 | | HazardClass | 8 | | PackingGroup | III | | Hazardous Substances Data | 623-68-7(Hazardous Substances Data) | | Toxicity | LD50 orally in Rabbit: 2061 mg/kg |
| Crotonic anhydride Usage And Synthesis |
| 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. |
| Crotonic anhydride Preparation Products And Raw materials |
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