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645-67-0

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645-67-0 Usage

Description

Pentanoic acid, 4-oxo-, propyl ester, also known as propyl 4-oxopentanoate, is an organic compound that belongs to the class of carboxylic acid esters. It is a carboxylic acid derivative where the carboxylic group is replaced by an alkoxy group. This colorless, oily liquid is soluble in organic solvents and is primarily used in the production of chemicals for industrial processes. As a derivative of pentanoic acid, it may produce an unpleasant, pungent odor. Although it is not usually considered a particularly hazardous chemical, contact with skin or eyes may cause irritation, and inhalation or ingestion may lead to health issues.

Uses

Used in Chemical Production:
Pentanoic acid, 4-oxo-, propyl ester is used as an intermediate chemical in the synthesis of various industrial chemicals. Its role in chemical production is crucial for creating a wide range of products used across different industries.
Used in Pharmaceutical Industry:
In the pharmaceutical industry, Pentanoic acid, 4-oxo-, propyl ester is used as a building block for the synthesis of certain drugs. Its chemical properties make it a valuable component in the development of new medications.
Used in Flavor and Fragrance Industry:
Pentanoic acid, 4-oxo-, propyl ester is used as a flavoring agent or a fragrance ingredient in the production of food and cosmetic products. Its unique scent characteristics contribute to the creation of distinct flavors and scents in these products.
Used in Research and Development:
Pentanoic acid, 4-oxo-, propyl ester is utilized in research and development settings for studying its chemical properties and potential applications. It serves as a valuable compound for scientific experiments and the exploration of new chemical reactions.

Check Digit Verification of cas no

The CAS Registry Mumber 645-67-0 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,4 and 5 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 645-67:
(5*6)+(4*4)+(3*5)+(2*6)+(1*7)=80
80 % 10 = 0
So 645-67-0 is a valid CAS Registry Number.
InChI:InChI=1/C8H14O3/c1-3-6-11-8(10)5-4-7(2)9/h3-6H2,1-2H3

645-67-0SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name propyl 4-oxopentanoate

1.2 Other means of identification

Product number -
Other names Propyl levulinate

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:645-67-0 SDS

645-67-0Relevant articles and documents

Esterification of levulinic acid over Sn(II) exchanged Keggin heteropolyacid salts: An efficient route to obtain bioaditives

Da Silva, Márcio José,Chaves, Diego Morais,Teixeira, Milena Galdino,Oliveira Bruziquesi, Carlos Giovani

, (2021/03/04)

In this paper, we describe a process to add value to the biomass derivatives (i.e., levulinic acid), converting it to bioadditives over solid Sn(II) exchanged Keggin heteropolyacid salts. These solid catalysts are an attractive alternative to the traditional soluble and corrosive Br?nsted acid catalysts. Among Sn(II) heteropoly salts, the Sn1.5PW12O40 was the most active and selective catalyst, achieving high conversions (ca. 90 %) and selectivity (90–97 %) for alkyl esters and angelica lactone, the main reaction products. The impacts of the main reaction parameters (i.e., catalyst load, temperature, and the molar ratio of alcohol to acid) were investigated. The use of renewable raw material, and an efficient and recyclable catalyst are the main positive features of this process. The Sn1.5PW12O40 catalyst was easily recovered and reused without loss activity.

Efficient alcoholysis of furfuryl alcohol to n-butyl levulinate catalyzed by 5-sulfosalicylic acid

Zhao, Wenguang,Ding, Hui,Tian, Yi,Xu, Qiong,Liu, Xianxiang

, p. 1339 - 1345 (2021/02/26)

It is urgent to study the utilization of biomass energy to solve the environmental problems caused by the excessive use of fossil fuels. In this study, a rapid and efficient route for the conversion of furfuryl alcohol (FA) into n-butyl levulinate (BL) has been catalyzed by 5-sulfosalicylic acid. The nearly complete conversion of FA and a considerable 99.7% selectivity of BL are obtained under the optimal conditions. Based on the experimental results, a possible mechanism for the alcoholysis of FA is proposed. The present study provided a promising way for alkyl levulinates synthesis over economical and environmentally benign catalysts.

Eco-Friendly Natural Clay: Montmorillonite Modified with Nickel or Ruthenium as an Effective Catalyst in Gamma-Valerolactone Synthesis

?erveny, Libor,Trejbal, Ji?í,Vaňková, Michaela,Vrbková, Eva,Vysko?ilová, Eli?ka

, (2021/07/25)

Ni/Ru metals supported on cheap and available support montmorillonite K10 were used for the selective hydrogenation of levulinic acid to γ-valerolactone. Different loadings of the metals were applied by the impregnation method, and detailed characterization was performed (UV–VIS, XRD, TPR, TPD, particle size distribution, SEM, XRF). Metals’ homogeneous distribution on the surface was confirmed. The selectivity to the desired product was almost independent on the used material. A detailed study of the influence of solvents on the studied reaction was also performed—protic alcohol-based solvents caused the formation of levulinic and valeric acid esters in the reaction mixture. The selectivity was influenced mainly by the alcohol structure (the highest selectivity obtained using isopropyl alcohol and sec-butanol). Mainly the solvent’s donor number (except ethanol) influenced the reaction rate. The prepared catalysts are promising, available, and cheap materials for the studied reaction. Solvent may significantly influence the yield of γ-valerolactone. Graphic Abstract: [Figure not available: see fulltext.].

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