25811-35-2

Basic information

• Product Name: 2,2-bis[[(1-oxoheptyl)oxy]methyl]propane-1,3-diyl bisheptanoate
• Synonyms: 2,2-bis[[(1-oxoheptyl)oxy]methyl]propane-1,3-diyl bisheptanoate;Pentaerythritol tetraheptanoate;Heptanoic acid, 2,2-bis(1-oxoheptyl)oxymethyl-1,3-propanediyl ester;2,2-Bis[[(1-oxoheptyl)oxy]methyl]propan-1,3-diylbisheptanoat;2,2-Bis(heptanoyloxymethyl)propane-1,3-diol diheptanoate;2,2-Bis[(heptanoyloxy)methyl]-1,3-propanediol diheptanoate;Pentaerythritol tetraenanthate;Tetrakis(heptanoic acid)(methanetetrayltetrakismethylene) ester
• CAS NO: 25811-35-2
• Molecular Formula: C₃₃H₆₀O₈
• Molecular Weight: 584.8247
• EINECS: 247-279-7
• Mol File: 25811-35-2.mol
• Article Data: 4

Chemical Properties

• Boiling Point: 618°Cat760mmHg
• Flash Point: 249.7°C
• Appearance: /
• Density: 0.995g/cm³
• Vapor Pressure: 3.35E-15mmHg at 25°C
• Refractive Index: 1.463
• CAS DataBase Reference: 2,2-bis[[(1-oxoheptyl)oxy]methyl]propane-1,3-diyl bisheptanoate(CAS DataBase Reference)
• NIST Chemistry Reference: 2,2-bis[[(1-oxoheptyl)oxy]methyl]propane-1,3-diyl bisheptanoate(25811-35-2)
• EPA Substance Registry System: 2,2-bis[[(1-oxoheptyl)oxy]methyl]propane-1,3-diyl bisheptanoate(25811-35-2)

Safety Data

• Hazardous Substances Data: 25811-35-2(Hazardous Substances Data)

Usage

General Description

2,2-bis[[(1-oxoheptyl)oxy]methyl]propane-1,3-diyl bisheptanoate, also known as bis(7-oxyheptyl) pentaerythritol bis(heptanoate), is an organic compound with the molecular formula C38H72O8. It is a synthetic ester that is commonly used as a plasticizer in the production of PVC products, such as vinyl flooring, wire and cable insulation, and synthetic leather. This chemical is known for its high boiling point and good compatibility with PVC resins, making it an effective additive for improving the flexibility and durability of plastic materials. Additionally, it is also used in the formulation of adhesives, sealants, and coatings due to its low volatility and resistance to extraction by water and oils. Despite its widespread industrial applications, there is limited information available on its potential health and environmental impacts, so precautions should be taken when handling and using products containing this chemical.

InChI:InChI=1/C33H60O8/c1-5-9-13-17-21-29(34)38-25-33(26-39-30(35)22-18-14-10-6-2,27-40-31(36)23-19-15-11-7-3)28-41-32(37)24-20-16-12-8-4/h5-28H2,1-4H3

Upstream product

• 115-77-5 Pentaerythritol 
• 111-14-8 oenanthic acid 

Relevant articles and documents

Retention Indices and Sorption Enthalpies of Pentaerythritol and С2–С8 Acid Esters on Nonpolar Stationary Phases

Abstract: The retention and sorption enthalpy characteristics of 38 pentaerythritol esters of C2–C8 carboxylic acids of different structures were determined by gas-liquid chromatography on a nonpolar phase in the temperature range 433.2–563.2 K. The molecular structure was shown to affect the temperature dependence of the retention indices of the esters. The average change in the sorption enthalpy of pentaerythritol tetraesters per CH2 group is lower in magnitude than the similar contribution for normal alkanes. The excess mixing enthalpy at 298.2 K was evaluated for four fully substituted pentaerythritol esters.

A green way to synthesize lubricating ester oils: The esterification of pentaerythrotol with fatty acids at stoichiometric ratio over [BHSO3MMIm]+[HSO4]?/SiO2

A green way was provided to produce lubricating ester oils under solvent-free conditions over an ionic liquid catalyst supported with mesoporous silica, which was prepared by using sol-gel method and exhibited high activity and selectivity for the esterification of pentaerythrotol with fatty acid at stoichiometric ratio to the corresponding pentaerythrotol tetra-esters. The catalyst was systematically characterized by TEM, TG/DTA, BET and FT-IR. Moreover, the stability of the catalyst was investigated, and it can be recycled for several times without significant deactivation.