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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
Molecular Weight:
126.15
MDL Number:
MFCD00012391
MOL File:
21835-01-8.mol
MSDS File:
SDS
Last updated:2023-06-29 17:13:30

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

Melting point 39.0 to 43.0 °C
Boiling point 75°C/0.3mmHg(lit.)
Density 1.066 at 25 °C
FEMA 3152 | 3-ETHYL-2-HYDROXY-2-CYCLOPENTEN-1-ONE
refractive index n20/D 1.476
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)
Substances Added to Food (formerly EAFUS) 3-ETHYL-2-HYDROXY-2-CYCLOPENTEN-1-ONE
EWG's Food Scores 1
FDA UNII XH8EA788C9
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)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H317
Precautionary statements  P261-P272-P280-P333+P313-P362+P364-P501
Hazard Codes  Xn,Xi
Risk Statements  20/22-43
Safety Statements  26-36-36/37
WGK Germany  3
HS Code  29144000
NFPA 704
1
1 0

3-Ethyl-2-hydroxy-2-cyclopenten-1-one price More Price(20)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich W315230 Ethylcyclopentenolone natural, 97%, FG 21835-01-8 sample-k $87.7 2024-03-01 Buy
Sigma-Aldrich W315230 Ethylcyclopentenolone natural, 97%, FG 21835-01-8 100g $498 2024-03-01 Buy
Sigma-Aldrich W315230 Ethylcyclopentenolone natural, 97%, FG 21835-01-8 500g $2090 2024-03-01 Buy
Sigma-Aldrich W315230 Ethylcyclopentenolone natural, 97%, FG 21835-01-8 1kg $3560 2024-03-01 Buy
Sigma-Aldrich 301744 3-Ethyl-2-hydroxy-2-cyclopenten-1-one solution 50 wt. % in propylene glycol 21835-01-8 25g $106 2023-01-07 Buy
Product number Packaging Price Buy
W315230 sample-k $87.7 Buy
W315230 100g $498 Buy
W315230 500g $2090 Buy
W315230 1kg $3560 Buy
301744 25g $106 Buy

3-Ethyl-2-hydroxy-2-cyclopenten-1-one Chemical Properties,Uses,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.

80-71-7
21835-01-8
Synthesis of 3-Ethyl-2-hydroxy-2-cyclopenten-1-one from Methyl cyclopentenolone

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

Raw materials

Preparation Products

Global( 215)Suppliers
Supplier Tel Email Country ProdList Advantage
Hebei Mojin Biotechnology Co., Ltd
+8613288715578 sales@hbmojin.com China 12456 58
career henan chemical co
+86-0371-86658258 sales@coreychem.com China 29914 58
Hubei Jusheng Technology Co.,Ltd.
18871490254 linda@hubeijusheng.com CHINA 28180 58
Hebei Guanlang Biotechnology Co., Ltd.
+86-19930503282 alice@crovellbio.com China 8823 58
Xiamen AmoyChem Co., Ltd
+86-592-6051114 +8618959220845 sales@amoychem.com China 6387 58
Chongqing Chemdad Co., Ltd
+86-023-61398051 +8613650506873 sales@chemdad.com China 39916 58
CONIER CHEM AND PHARMA LIMITED
+8618523575427 sales@conier.com China 47465 58
Neostar United (Changzhou) Industrial Co., Ltd.
+86-519-519-85557386 marketing1@neostarunited.com China 8349 58
SIMAGCHEM CORP
+86-13806087780 sale@simagchem.com China 17367 58
Hebei Binshare New Material Co. Ltd
+8618633865755 china01@hbbinshare.com CHINA 969 58

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

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
3-Ethyl-2-hydroxy-2-cyclopenten-1-one pictures 2024-03-28 3-Ethyl-2-hydroxy-2-cyclopenten-1-one
21835-01-8
US $0.00 / KG 25KG 98% Inquiry PNP Biotech Co. Ltd
3-Ethyl-2-hydroxy-2-cyclopenten-1-one pictures 2023-09-06 3-Ethyl-2-hydroxy-2-cyclopenten-1-one
21835-01-8
US $0.00-0.00 / KG 1KG 99% 500000kg Hebei Guanlang Biotechnology Co., Ltd.
3-Ethyl-2-hydroxy-2-cyclopenten-1-one pictures 2023-06-30 3-Ethyl-2-hydroxy-2-cyclopenten-1-one
21835-01-8
US $0.00 / KG 1KG 99% 50000KG/month Hebei Mojin Biotechnology Co., Ltd
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%) Ethyl Eyelopentenolone 3-Ethyl-2-hydroxy-2-cyclopenten-1-one USP/EP/BP Ethyl cyclopentenol ketone 3-Ethyl-2-hydroxy-2-cyclopenten-1-one> (3S)-3-ethylcyclopentane-1,2-dione 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 Flavors and Fragrances pharmacetical