3-Ethyl-2-Hydroxy-2-Cyclopenten-1-One; CAS 21835 -01-8

Colour
White to Light Brown
Shelf Life
2-3 Years
Lead Time
5-7 Working Days
Transport
Air/Express/Sea
MOQ
10g
Site Audit
Available
Certificates
ISO9001/SGS
Stocks
in Stock
Package
1kg/5kg/10kg/25kg
Samples
Available
Purity
99%
Transport Package
Drum/Bottle/Bags
Trademark
Yunbang
Origin
China
Reference Price
Please contact us for quote
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Product Description

3-Ethyl-2-hydroxy-2-cyclopenten-1-one;CAS 21835-01-8

3-Ethyl-2-Hydroxy-2-Cyclopenten-1-One; CAS 21835-01-8
3-Ethyl-2-hydroxy-2-cyclopenten-1-one Chemical 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  n 20/D 1.476
Fp  225 °F
storage temp.  2-8°C
pka 9.17±0.20(Predicted)
JECFA Number 419
InChIKey JHWFWLUAUPZUCP-UHFFFAOYSA-N
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)
 
Safety Information
Hazard Codes  Xn,Xi
Risk Statements  20/22-43
Safety Statements  26-36-36/37
WGK Germany  3
HS Code  29144000
3-Ethyl-2-hydroxy-2-cyclopenten-1-one Usage And Synthesis
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 phosp horic 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.
 
3-Ethyl-2-Hydroxy-2-Cyclopenten-1-One; CAS 21835-01-8
 
3-Ethyl-2-Hydroxy-2-Cyclopenten-1-One; CAS 21835-01-8 3-Ethyl-2-Hydroxy-2-Cyclopenten-1-One; CAS 21835-01-8 3-Ethyl-2-Hydroxy-2-Cyclopenten-1-One; CAS 21835-01-8
Company Informations:

Hunan Yunbang Pharmaceutical Co., Ltd. ( Yunbangpharm) located in Changsha High-tech Industrial Park, Hunan. It is a high-tech enterprise specializing in the research and development, production and sales of Pharmaceutical raw materials, Pharmaceutical intermediates(API) and Fine chemicals. Based in China, Yunbangpharm has been providing suitable solutions for many domestic,foreign pharmaceutical companies and traders. Excellent quality, good reputation and authentic price have won the praise of the majority of customers.
The company adheres to the corporate tenet of "We do not produce medicines, but help pharmaceutical companies make good medicines".

We can provide customers with customized processing, research and development services;
We can develop high-end Pharmaceutical and chemical products with high technical difficulties,high barriers and unique production processes;
We can provide 100 grams Grade, kilograms, and hundred kilograms of raw material pharmaceutical intermediates and other products.
We can perform -100°C to 300°C reaction.

R&D strength is the company's core competitiveness.Yunbangpharm has maintains a good cooperation relationship with many Universities and Research institutes locally, which can quickly transform R&D results into industrial production.

Our goal : To achieve the integrated upgrade of P harmaceutical intermediates, raw materials and high-end chemical products, adhere to "serving pharmaceutical companies, creating our brands" to provide customers with high-quality and low-cost pharmaceutical and chemical products, realizing Win-win cooperation and common development.

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