??????????
|
|
?????????? ??
- ???
- 37.22°C (estimate)
- ?? ?
- 142-143 °C(lit.)
- ??
- 0.918 g/mL at 25 °C(lit.)
- ?? ??
- 3.9 (vs air)
- ???
- 65 hPa (50 °C)
- ???
- n
20/D 1.424(lit.)
- ???
- 36 °F
- ?? ??
- Store below +30°C.
- ???
- ?????(?? ???), ???????(?? ???)
- ??? ??
- ??
- ??
- ???
- ??
- ????? ??? ? 10.00%. ?? ?? ?? ??? ?? ??? ?
- ?? ??
- ???
- ???? ??
- synthetic
- ???
- ???
- JECFA Number
- 1806
- Merck
- 14,2597
- BRN
- 635834
- Dielectric constant
- 5.4（20℃）
- ???
- ????. ???? ????. ?? ???? ???? ????.
- InChIKey
- ZFDIRQKJPRINOQ-HWKANZROSA-N
- LogP
- 1.85
- CAS ??????
- 623-70-1(CAS DataBase Reference)
??
- ?? ? ?? ??
- ?? ? ???? ?? (GHS)
| ??? ?? | F,C,Xi | ||
|---|---|---|---|
| ?? ???? ?? | 11-34-36 | ||
| ????? | 16-26-36/37/39-45-9-33 | ||
| ????(UN No.) | UN 1862 3/PG 2 | ||
| WGK ?? | 2 | ||
| RTECS ?? | GQ3500000 | ||
| TSCA | Yes | ||
| ?? ?? | 3 | ||
| ???? | II | ||
| HS ?? | 29161980 | ||
| ?? | LD50 orally in Rabbit: 3000 mg/kg | ||
| ???? ?? | KE-04095 |
?????????? C??? ??, ??, ??
??? ??
Ethyl crotonate has a powerful, sour, caramellic-fruity odor.??
Reported found in Fragaria vesca. Also reported found in guava fruit, guava peel, pineapple, white wine, yellow passion fruit, fresh mango, naranjilla fruit, mussel, loganberry, apple, papaya, concord grape, strawberry, rum, cocoa, plum, kiwifruit and other natural sources.??
Ethyl Crotonate is a synthetic flavoring agent that is a moderately stable, colorless to light yellow liquid of sharp winey note. it should be stored in glass, tin, or resin-lined containers. it is used in fruit flavors for application in baked goods, beverages, and candy at 2–7 ppm.?? ??
By esterification of crotonic acid with ethyl alcohol in the presence of concentrated H2SO4.?? ??
Ethyl trans-2-butenoate is a volatile flavor compound found in fruits such as cashew apple, African star apple, naranjilla fruit and sweet passion fruit.???
Flammable, dangerous fire risk. Strong irritant.Safety Profile
Moderately toxic by ingestion and probably by inhalation. A skin , mucous membrane, and severe eye irritant. Very dangerous fire hazard when exposed to heat or flame; can react vigorously with oxidizing materials. To fight fire, use foam, CO2, or dry chemical. See also ESTERS. When heated to decomposition it emits acrid smoke and fumes.Purification Methods
Wash it with aqueous 5% Na2CO3, then with saturated aqueous CaCl2, dry it with CaCl2 and distil it. [Beilstein 2 IV 1500.]?????????? ?? ?? ? ???
???
Acetic acid, 2-bromo-2-(trimethylsilyl)-, ethyl ester
????????,3-??-,??????,???-(9CI)
Ethyl 3-hydroxybutyrate
??3-(????)?????
???-2-?????????
????
4-????????
4-???-????????????
?????????????????
?? ??
?????????? ?? ??
???( 216)?? ??
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