| Identification | More | [Name]
3-Ethyl-2-hydroxy-2-cyclopenten-1-one | [CAS]
21835-01-8 | [Synonyms]
3-ETHYL-2-CYCLPENTEN-2-OL-1-ONE
3-ETHYL-2-HYDROXY-2-CYCLOPENTEN-1-ONE
3-ETHYL-HYDROXY-2-CYCLOPENTEN-1-ONE
ETHYL CYCLOPENTENOLONE
FEMA 3152
2-Cyclopenten-1-one, 3-ethyl-2-hydroxy-
2-Cyclopenten-1-one,3-ethyl-2-hydroxy-(7CI,8CI,9CI)
3-ethyl-2-hydroxy-2-cyclopenten-1-on
3-Ethyl-2-hydroxy-2-cyclopenten-1-one solution
3-ethyl-2-hydroxycyclopent-2-en-1-one
ISOVALERIC ACID 99+% FCC
3-ETHYL-2-HYDROXY-2-CYCLOPENTEN-1-ONE, 5 0 WT. % SOLUTION IN PROPYLENE GLYCOL
3-ETHYL-2-HYDROXY-2-CYCLOPENTENE-1-ONE
ETHYL CYCLOPENTENOLONE IN 50% P.G.
ETHYL CYCLOPENTENOLONE PURE
2-Hydroxy-3-ethyl-2-cyclopentene-1-one | [EINECS(EC#)]
244-606-5 | [Molecular Formula]
C7H10O2 | [MDL Number]
MFCD00012391 | [Molecular Weight]
126.15 | [MOL File]
21835-01-8.mol |
| Chemical Properties | Back Directory | [Melting point ]
39.0 to 43.0 °C | [Boiling point ]
75°C/0.3mmHg(lit.) | [density ]
1.067 g/mL at 25 °C
| [FEMA ]
3152 | [refractive index ]
n20/D 1.476
| [Fp ]
225 °F
| [storage temp. ]
2-8°C | [solubility ]
soluble in Methanol,Ether | [form ]
powder to crystal | [pka]
9.17±0.20(Predicted) | [color ]
White to Orange to Green | [Odor]
at 1.00 % in propylene glycol. sweet caramel maple fenugreek | [biological source]
synthetic | [Odor Type]
caramellic | [JECFA Number]
419 | [Major Application]
flavors and fragrances | [InChI]
1S/C7H10O2/c1-2-5-3-4-6(8)7(5)9/h9H,2-4H2,1H3 | [InChIKey]
JHWFWLUAUPZUCP-UHFFFAOYSA-N | [SMILES]
O=C1CCC(CC)=C1O | [LogP]
0.83 | [CAS DataBase Reference]
21835-01-8(CAS DataBase Reference) | [NIST Chemistry Reference]
2-Cyclopenten-1-one, 3-ethyl-2-hydroxy-(21835-01-8) | [EPA Substance Registry System]
21835-01-8(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
Xn | [Risk Statements ]
R20/22:Harmful by inhalation and if swallowed . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing . | [WGK Germany ]
3
| [TSCA ]
TSCA listed | [HS Code ]
29144000 | [Storage Class]
11 - Combustible Solids | [Hazard Classifications]
Skin Sens. 1 |
| Hazard Information | Back Directory | [Chemical Properties]
3-Ethyl-2-hydroxy-2-cyclopenten-1-one has a caramel-like flavor. This compound is often employed to impart a caramel flavor or coconut notes in food. The compound exhibits flavor-enhancing characteristics. | [Uses]
flavors and fragrances | [Definition]
ChEBI: 3-Ethyl-2-hydroxycyclopent-2-en-1-one is a cyclic ketone. | [Preparation]
From 5-methyl-3,5-dicarbethoxy-2-cyclopen-ten-2-ol-one and phosphoric acid; by a patented process; also from dimethyl
adipate. | [Aroma threshold values]
Aroma characteristics at 0.5%: sweet, brown, caramellic, maple, brown sugar, rum, whiskey, furanone. | [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 | [General Description]
3-Ethyl-2-hydroxy-2-cyclopenten-1-one is formed by thermal degradation of ascorbic acid. It is an aroma compound formed from the reactions of L-ascorbic acid with L-threonine/L-serine at different pH values. |
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