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Product Name: |
Ethyl cyclopentenolone |
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CAS: |
21835-01-8 |
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MF: |
C7H10O2 |
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MW: |
126.15 |
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EINECS: |
244-606-5 |
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Mol File: |
21835-01-8.mol |
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Melting point |
39.0 to 43.0 °C |
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Boiling point |
75°C/0.3mmHg(lit.) |
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density |
1.067 g/mL at 25 °C |
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FEMA |
3152 | 3-ETHYL-2-HYDROXY-2-CYCLOPENTEN-1-ONE |
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refractive index |
n20/D 1.476 |
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Fp |
225 °F |
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storage temp. |
2-8°C |
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pka |
9.17±0.20(Predicted) |
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JECFA Number |
419 |
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InChIKey |
JHWFWLUAUPZUCP-UHFFFAOYSA-N |
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CAS DataBase Reference |
21835-01-8(CAS DataBase Reference) |
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NIST Chemistry Reference |
2-Cyclopenten-1-one, 3-ethyl-2-hydroxy-(21835-01-8) |
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EPA Substance Registry System |
2-Cyclopenten-1-one, 3-ethyl-2-hydroxy- (21835-01-8) |
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Hazard Codes |
Xn,Xi |
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Risk Statements |
20/22-43 |
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Safety Statements |
26-36-36/37 |
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WGK Germany |
3 |
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HS Code |
29144000 |
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Chemical Properties |
3-Ethyl-2-hydroxy-2-cyclopenten-1-one has a caramel-like flavor. This compound is often employed to impart a cara[1]mel flavor or coconut notes in food. The compound exhibits flavor-enhancing characteristics. |
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Preparation |
From 5-methyl-3,5-dicarbethoxy-2-cyclopen-ten-2-ol-one and phosphoric acid; by a patented process; also from dimethyl adipate. |
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Aroma threshold values |
Aroma characteristics at 0.5%: sweet, brown, caramellic, maple, brown sugar, rum, whiskey, furanone. |
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Taste threshold values |
A threshold value of 5 ppm, similar to the 3-methyl analog, has been determined by comparative sensory evaluation. Taste characteristics at 12 ppm: sweet, jamy, fruity, brown, toasted, maple, nutty |
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Raw materials |
Cyclopentene-->Dimethyl adipate |
