3-Ethyl-2-hydroxy-2-cyclopenten-1-one

Product Name: 3-Ethyl-2-hydroxy-2-cyclopenten-1-one
CAS No.: 21835-01-8
Chemical Name: 3-Ethyl-2-hydroxy-2-cyclopenten-1-one
Synonyms: FEMA 3152;Ethyl Cyclopentenlone;ETHYL CYCLOPENTENOLONE;Ethyl Eyelopentenolone;ISOVALERIC ACID 99+% FCC;Ethyl cyclopentenol ketone;ETHYL CYCLOPENTENOLONE PURE;Ethyl Cyclopentenolone (50%);3-ETHYL-2-CYCLPENTEN-2-OL-1-ONE;ETHYL CYCLOPENTENOLONE IN 50% P.G.
CBNumber: CB6199223
Molecular Formula: C7H10O2
Formula Weight: 126.15
MOL File: 21835-01-8.mol

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3-Ethyl-2-hydroxy-2-cyclopenten-1-one Property

Melting point:: 39.0 to 43.0 °C
Boiling point:: 75°C/0.3mmHg(lit.)
Density: 1.066 at 25 °C
refractive index: n20/D 1.476
FEMA: 3152 | 3-ETHYL-2-HYDROXY-2-CYCLOPENTEN-1-ONE
Flash point:: 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
Odor Type: caramellic
JECFA Number: 419
InChIKey: JHWFWLUAUPZUCP-UHFFFAOYSA-N
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: 2-Cyclopenten-1-one, 3-ethyl-2-hydroxy- (21835-01-8)

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Safety

Hazard Codes: Xn,Xi
Risk Statements: 20/22-43
Safety Statements: 26-36-36/37
WGK Germany: 3
HS Code: 29144000

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H317May cause an allergic skin reaction

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P272Contaminated work clothing should not be allowed out of the workplace.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P333+P313IF SKIN irritation or rash occurs: Get medical advice/attention.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: W315230
Product name: Ethylcyclopentenolone
Purity: natural, 97%, FG
Packaging: sample-k
Price: $87.7
Updated: 2024/03/01

Sigma-Aldrich

Product number: W315230
Product name: Ethylcyclopentenolone
Purity: natural, 97%, FG
Packaging: 100g
Price: $498
Updated: 2024/03/01

Sigma-Aldrich

Product number: W315230
Product name: Ethylcyclopentenolone
Purity: natural, 97%, FG
Packaging: 500g
Price: $2090
Updated: 2024/03/01

Sigma-Aldrich

Product number: W315230
Product name: Ethylcyclopentenolone
Purity: natural, 97%, FG
Packaging: 1kg
Price: $3560
Updated: 2024/03/01

Sigma-Aldrich

Product number: 301744
Product name: 3-Ethyl-2-hydroxy-2-cyclopenten-1-one solution
Purity: 50 wt. % in propylene glycol
Packaging: 25g
Price: $106
Updated: 2023/01/07

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3-Ethyl-2-hydroxy-2-cyclopenten-1-one Chemical Properties,Usage,Production

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.

Preparation

From 5-methyl-3,5-dicarbethoxy-2-cyclopen-ten-2-ol-one and phosphoric acid; by a patented process; also from dimethyl adipate.

Definition

ChEBI: 3-Ethyl-2-hydroxycyclopent-2-en-1-one is a cyclic ketone.

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.

3-Ethyl-2-hydroxy-2-cyclopenten-1-one Preparation Products And Raw materials

Raw materials

Dimethyl adipate Cyclopentene

Preparation Products

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3-Ethyl-2-hydroxy-2-cyclopenten-1-one Suppliers

Americas 1 China 174 Europe 1 India 2 Ireland 1 Japan 1 Spain 1 Switzerland 2 United Kingdom 4 United States 35 USA 1 Global 223

Wuhan Rongcan Biotechnology Co., Ltd

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View Lastest Price from 3-Ethyl-2-hydroxy-2-cyclopenten-1-one manufacturers

Hebei Zhuanglai Chemical Trading Co.,Ltd

Product: 3-Ethyl-2-hydroxy-2-cyclopenten-1-one 21835-01-8
Price: US $120.00/kg
Min. Order: 1kg
Purity: 99%
Supply Ability: 20ton
Release date: 2024-05-16

Hebei Weibang Biotechnology Co., Ltd

Product: 3-Ethyl-2-hydroxy-2-cyclopenten-1-one 21835-01-8
Price: US $0.00-0.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 500000kg
Release date: 2023-03-20

JINING XINHE CHEMICAL CO., LTD

Product: 3-Ethyl-2-hydroxy-2-cyclopenten-1-one 21835-01-8
Price: US $0.00-0.00/kg
Min. Order: 1kg
Purity: 98%
Supply Ability: 10ton
Release date: 2024-07-18

21835-01-8, 3-Ethyl-2-hydroxy-2-cyclopenten-1-oneRelated Search:

Ethylparaben Ethyl formate Ethyl acetate CHLOROPHOSPHONAZO III ISOXADIFEN-ETHYL 4'-Hydroxyacetophenone Ethanol Ethyl acrylate 2-Butanone oxime Ethyl pyruvate 2'-Hydroxyacetophenone Methyl cyclopentenolone Diethylene Glycol Monoethyl Ether Ethyl cyanoacetate 3-Ethyl-4-methyl-3-pyrrolin-2-one Ethylhexyl Triazone 2-Butanone Cyclopentene

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-HYDROXY-2-CYCLOPENTEN-1-ONE

3-ETHYL-2-HYDROXY-2-CYCLOPENTEN-1-ONE

3-ETHYL-2-CYCLPENTEN-2-OL-1-ONE

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

FEMA 3152

ETHYL CYCLOPENTENOLONE

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

3-ETHYL-2-HYDROXY-2-CYCLOPENTEN-1-ONE, 5

2-ethyl-3-hydroxycyclopent-2-en-1-one

3-Ethyl-2-hydroxy-2-cy-clopenten-1-0ne

3-Ethyl-2-hydroxycyclopent-2-enone

3-Ethyl-2-hydroxy-2-cyclopenten-1-one solution 50 wt. % in propylene glycol

Ethyl Cyclopentenolone (50%)

(3S)-3-ethylcyclopentane-1,2-dione

3-Ethyl-2-hydroxy-2-cyclopenten-1-one&gt

Ethyl cyclopentenol ketone

3-Ethyl-2-hydroxy-2-cyclopenten-1-one USP/EP/BP

Ethyl Eyelopentenolone

Ethyl Cyclopentenlone

3-Ethyl-2-hydroxy-2-cyclopenten-1-one, ≥ 97.0%

21835-01-8

Organic Building Blocks

Ketones

Building Blocks

C7 to C8

Carbonyl Compounds

C7 to C8

Carbonyl Compounds

Ketones

Alphabetical Listings

E-F

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