Methyl cyclopentenolone
2-hydroxy-3-methylcyclopent-2-enone
CAS: 80-71-7
Molecular Formula: C6H8O2
Methyl cyclopentenolone - Names and Identifiers
Methyl cyclopentenolone - Physico-chemical Properties
| Molecular Formula | C6H8O2 |
| Molar Mass | 112.13 |
| Density | 1.0795 (rough estimate) |
| Melting Point | 104-108°C |
| Boling Point | 170.05°C (rough estimate) |
| Flash Point | 100°C |
| JECFA Number | 418 |
| Solubility | Chloroform (Slightly), Methanol (Slightly) |
| Vapor Presure | 2.1hPa at 20℃ |
| Appearance | White crystal |
| Color | White crystalline powder or fine crystals |
| pKa | 9.21±0.20(Predicted) |
| Storage Condition | Store at +2°C to +8°C. |
| Refractive Index | 1.4532 (estimate) |
| MDL | MFCD00013747 |
| Physical and Chemical Properties | White crystalline powder. It has the aroma of maple and solitary grass. In the diluted solution, the flavor of the sugar-licorice was obtained. The melting point was 105-107 °c. Soluble in ethanol, acetone and propylene glycol, micro-soluble in most non-volatile oil, l g soluble in 72ml water, soluble in boiling water. Natural products are present in huluba. |
Methyl cyclopentenolone - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. 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. S36/37 - Wear suitable protective clothing and gloves. S24/25 - Avoid contact with skin and eyes. S22 - Do not breathe dust. |
| WGK Germany | 3 |
| RTECS | GY7298000 |
| HS Code | 29144090 |
Methyl cyclopentenolone - Reference Information
| FEMA | 2700 | METHYLCYCLOPENTENOLONE |
| LogP | 0.4 at 25℃ |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| toxicity | GRAS(FEMA). LD50 1400 mg/kg (Pigeon, oral). |
| usage limit | FEMA(mg/kg): soft drinks 11; Cold drinks 5.6; Candy 18; Baked goods 13; pudding 14; Gum sugar 8.0~15; Syrup 10. Moderate limits (FDA § 172.515,2000). |
| Use | GB 2760-1996 specifies the permitted use of flavorants. Mainly used in the preparation of Acer, smoke, cream hard candy and apricot flavor. The use of edible spices is allowed in China GB2760-86. Mainly used in the preparation of Acer, smoke, cream hard candy, and apricot flavor. used as a flavor and sweetness enhancer |
| production method | prepared from methylfuran and dimethylamine. biosynthesis. From methyl cyclopentanone halogenated after hydrolysis. |
Last Update：2024-04-09 02:00:12
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