ETHYL CYCLOPENTENOLONE
3-ethyl-2-hydroxy-2-cyclopenten-1-one
CAS: 21835-01-8
Molecular Formula: C7H10O2
ETHYL CYCLOPENTENOLONE - Names and Identifiers
| Name | 3-ethyl-2-hydroxy-2-cyclopenten-1-one |
| Synonyms | FEMA 3152 ETHYL CYCLOPENTENOLONE 3-ETHYL-2-CYCLPENTEN-2-OL-1-ONE 3-ETHYL-HYDROXY-2-CYCLOPENTEN-1-ONE 3-ethyl-2-hydroxy-2-cyclopenten-1-on 3-ETHYL-2-HYDROXY-2-CYCLOPENTEN-1-ONE 3-ethyl-2-hydroxycyclopent-2-en-1-one 3-ethyl-2-hydroxy-2-cyclopenten-1-one 2-Cyclopenten-1-one, 3-ethyl-2-hydroxy- 3-Ethyl-2-hydroxy-2-cyclopenten-1-one solution 2-Cyclopenten-1-one,3-ethyl-2-hydroxy-(7CI,8CI,9CI) |
| CAS | 21835-01-8 |
| EINECS | 244-606-5 |
| InChI | InChI=1/C7H10O2/c1-2-5-3-4-6(8)7(5)9/h9H,2-4H2,1H3 |
| InChIKey | JHWFWLUAUPZUCP-UHFFFAOYSA-N |
ETHYL CYCLOPENTENOLONE - Physico-chemical Properties
| Molecular Formula | C7H10O2 |
| Molar Mass | 126.15 |
| Density | 1.066 at 25 °C |
| Melting Point | 39.0 to 43.0 °C |
| Boling Point | 75°C/0.3mmHg(lit.) |
| Flash Point | 225°F |
| JECFA Number | 419 |
| Solubility | soluble in Methanol,Ether |
| Vapor Presure | 0.00204mmHg at 25°C |
| Appearance | powder to crystal |
| Color | White to Orange to Green |
| pKa | 9.17±0.20(Predicted) |
| Storage Condition | 2-8°C |
| Refractive Index | n20/D 1.476 |
| MDL | MFCD00012391 |
| Physical and Chemical Properties | White crystalline powder. Maple, caramel, smoked and coffee-like aroma. The boiling point of 78~80 degrees C (533pa). Miscible in ethanol, glycerol, benzyl alcohol and water. |
ETHYL CYCLOPENTENOLONE - Risk and Safety
| Risk Codes | R20/22 - Harmful by inhalation and if swallowed. R43 - May cause sensitization by skin contact |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S36/37 - Wear suitable protective clothing and gloves. |
| WGK Germany | 3 |
| HS Code | 29144000 |
ETHYL CYCLOPENTENOLONE - Reference Information
| FEMA | 3152 | 3-ETHYL-2-HYDROXY-2-CYCLOPENTEN-1-ONE |
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| toxicity | GRAS(FEMA). |
| usage limit | FEMA(mg/kg): alcohol-containing and alcohol-free beverages 20; Soft candy 150; Breakfast cereal 150; Dairy products, meat products, jam, jelly, gum sugar, all 50.0; Cheese products, soup, each 10.0; Frozen sweets, sweet sauce paste and hard candy are 200; 100 nut products. FEMA: soft drinks, cold drinks, candy, baked goods, jelly, pudding, seasonings, meat products, meat soup, milk, dairy products, cereal products, all 10.0 mg/kg. |
| use | GB 2760-1996 specified as allowed food spices. Used as a spice |
| Production method | It is composed of 5-yl-3, 5-diethoxyformyl-2-cyclopenten-2-ol-1-one and phosphorylation. It can also be made from dimethyl adipate. |
Last Update：2024-04-09 02:00:07
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