14491-66-8

Basic information

• Product Name: dioctyl succinate
• Synonyms: Succinic acid dioctyl ester;Ai3-07873;Butanedioic acid, dioctyl ester;Dioctyl butanedioate;Einecs 238-499-4;Decanedioic Acid Di-n-octyl Ester Sebacic Acid Di-n-octyl Ester Di-n-octyl Decanedioate;dioctylsuccinate/dioctylbutanedioate;Di-n-octyl Sebacate
• CAS NO: 14491-66-8
• Molecular Formula: C₂₀H₃₈O₄
• Molecular Weight: 342.5133
• EINECS: 238-499-4
• Mol File: 14491-66-8.mol
• Article Data: 9

Chemical Properties

• Boiling Point: 225°C/2mmHg
• Flash Point: 168.2°C
• Appearance: /
• Density: 0.936g/cm³
• Vapor Pressure: 7.93E-06mmHg at 25°C
• Refractive Index: 1.4490 to 1.4520
• CAS DataBase Reference: dioctyl succinate(CAS DataBase Reference)
• NIST Chemistry Reference: dioctyl succinate(14491-66-8)
• EPA Substance Registry System: dioctyl succinate(14491-66-8)

Safety Data

• Hazardous Substances Data: 14491-66-8(Hazardous Substances Data)

Usage

General Description

Dioctyl succinate is a synthetic chemical compound that belongs to the family of succinate esters. It is commonly used as a plasticizer in many industrial and commercial applications, particularly in the production of vinyl-based products such as films, sheets, and cables. As a plasticizer, dioctyl succinate helps to improve the flexibility, durability, and viscosity of the plastic materials, making them easier to process and mold. It is also known for its low volatility and good thermal stability, which makes it suitable for use in various temperature conditions. Additionally, dioctyl succinate is considered to be a safer alternative to traditional phthalate plasticizers, as it is less likely to leach out from the plastics and pose potential health risks.

InChI:InChI=1/C20H38O4/c1-3-5-7-9-11-13-17-23-19(21)15-16-20(22)24-18-14-12-10-8-6-4-2/h3-18H2,1-2H3

Upstream product

• 111-87-5 octanol 
• 110-15-6 succinic acid 
• 106-65-0 Dimethyl succinate 
• 108-30-5 succinic acid anhydride 
• 108-31-6 maleic anhydride 

Downstream Products

• 71324-05-5 dioctyl 2,5-dihydroxycyclohexa-1,4-diene-1,4-dicarboxylate 
• 110-15-6 succinic acid 

Relevant articles and documents

Biomass-derived dibasic acids to diesters with inorganic ligand-supported catalyst: synthesis, optimization, characterization

Several attempts have been made to obtain aliphatic dicarboxylic diesters from esterification reaction to develop the biomass-derived platform molecules and green manufacturing processes. In this paper, Na3(H2O)6[AlMo6O18(OH)6], an Anderson-type polyoxometalate, firstly, was reported as a catalyst for diester synthesis from dicarboxylic acid to diester which showed an well productivity and selectivity characterized by 1H and 13C. Response surface methodology (RSM) integrated with the desirability function approach was used to determine the best operative conditions, and the optimal reaction parameters for maximum dipropyl succinate yield (77 ± 2.5%) were identified as 1.19?mol.% catalyst loading, 4.9:1 propanol/succinic acid ratio, 113?°C, and 9.6?h. Three batches of tests were carried for catalyst recycling with 78–75% yield even after 6 cycles of esterification. In addition, the substrate carbon chain was increased for investigation of substrate scope achieving satisfactory results and all products were characterized by 1H and 13C nuclear magnetic resonance spectroscopy.

N-Butyl-2,4-dinitro-anilinium p-toluenesulfonate as a highly active and selective esterification catalyst

N-Butyl-2,4-dinitro-anilinium p-toluenesulfonate (1) was found to be a very active esterification catalyst that promotes condensation of equal mole amount of carboxylic acids and alcohols under mild conditions. This catalyst is also highly selective towards carboxylic acid and alcohol substrates at ambient temperature.

Esterification of bio-based succinic acid in biphasic systems: Comparison of chemical and biological catalysts

Different chemical and biological catalysts were screened for the biphasic esterification of aqueous solutions of succinic acid with 1-octanol. Among them, DBSA, Nafion NR-50 and Novozym 435 were found to be the most attractive catalysts. The pH, the temperature and the catalyst concentration had high impacts on the reaction rates. The optimization of the reaction conditions with a single-variable approach for the chemical catalysts and a Response Surface Methodology for the enzyme allowed an increase of the rates by a factor 1.5 for DBSA, 2.3 for Nafion NR-50 and 1.3 for Novozym 435. Real fermentation broths produced from recombinant Escherichia coli could be successfully esterified with conversions up to 93% for DBSA and 70% for Nafion NR-50 and Novozym 435 as catalysts. Finally, DBSA was selected as the cheapest and most active option. Besides, the esters were isolated with a purity of 83% from fermentation broth solutions. DBSA also catalyzed the esterification of succinic acid from fermentation broth with many alcohols creating a broad spectrum of interesting esters. The esters might then be used as end-product, hydrolyzed back to pure succinic acid or hydrogenated.