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Paraconic acid, also known as 2,4-hexadienoic acid, is an organic compound with the chemical formula C6H8O2. It is a colorless liquid that is soluble in water and has a pungent odor. Paraconic acid is a conjugated dienoic acid, which means it contains two carbon-carbon double bonds separated by a single bond. This unique structure gives it various chemical properties, such as the ability to undergo addition reactions and form polymers. It is primarily used in the synthesis of various chemicals, including pharmaceuticals, dyes, and resins. Paraconic acid is also an intermediate in the production of certain fragrances and flavorings. Due to its reactivity, it is important to handle paraconic acid with care, as it can cause skin and eye irritation.

498-89-5

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498-89-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 498-89-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,9 and 8 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 498-89:
(5*4)+(4*9)+(3*8)+(2*8)+(1*9)=105
105 % 10 = 5
So 498-89-5 is a valid CAS Registry Number.

498-89-5SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name tetrahydro-5-oxo-3-furancarboxylic acid

1.2 Other means of identification

Product number -
Other names 3-Furancarboxylic acid, tetrahydro-5-oxo-

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:498-89-5 SDS

498-89-5Relevant academic research and scientific papers

PROCESS FOR THE PRODUCTION OF METHACRYLIC ACID AND ITS DERIVATIVES AND POLYMERS PRODUCED THEREFROM

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, (2013/11/19)

A process for the production of methacrylic acid is described. The process comprises the base catalysed decarboxylation of at least one or a mixture of dicarboxylic acids selected from itaconic, citraconic or mesaconic acid. The decarboxylation is carried out in the range greater than 240 and up to 275° C. to provide high selectivity. The methacrylic acid product may be esterified to produce an ester. A method of preparing polymers or copolymers of methacrylic acid or methacrylic acid esters using the process is also described. Optionally, the process may be preceded with a decarboxylation and, if necessary, a dehydration step on a source of pre-acid such as citric acid or isocitric acid.

A PROCESS FOR THE PRODUCTION OF METHACRYLIC ACID AND ITS DERIVATIVES AND POLYMERS PRODUCED THEREFROM

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Page/Page column 26, (2013/11/18)

A process for the production of methacrylic acid by the base catalysed decarboxylation of at least one dicarboxylic acid selected from itaconic, citraconic or mesaconic acid or mixtures thereof is described. The decarboxylation is carried out at a temperature in the range from 100 to 199°C. A method of preparing polymers or copolymers of methacrylic acid or methacrylic acid esters is also described.

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