19438-64-3

Basic information

• Product Name: Methyl tetrahydrophthalic anhydride
• Synonyms: Methyltetrahydro Phthalic Anhydride (Mixture of 3- and 4- Isomers);Methyl tetrahydrophthalic anhydride;Methyl tetrahydropht;3a-Methyl-5,6-dihydro-4H-isobenzofuran-1,3-dione;5-Methyl-7,7a-dihydroisobenzofuran-1,3(3aH,6H)-dione;1,3-Isobenzofurandione, 3a,4,5,7a-tetrahydro-6-Methyl-;MTHPA,Tetrahydromethyl-1,3-isobenzofurandione;5-Methyl-7,7a-dihydroisobenzofuran-1,3(3aH,6H)
• CAS NO: 19438-64-3
• Molecular Formula: C₉H₁₀O₃
• Molecular Weight: 166.17
• EINECS: 234-290-7;251-823-9
• Mol File: 19438-64-3.mol

Chemical Properties

• Boiling Point: 308.9 °C at 760 mmHg
• Flash Point: 146.8 °C
• Appearance: /
• Density: 1.221 g/cm³
• Vapor Pressure: 0.00184mmHg at 25°C
• Refractive Index: 1.53
• CAS DataBase Reference: Methyl tetrahydrophthalic anhydride(CAS DataBase Reference)
• NIST Chemistry Reference: Methyl tetrahydrophthalic anhydride(19438-64-3)
• EPA Substance Registry System: Methyl tetrahydrophthalic anhydride(19438-64-3)

Safety Data

• Hazardous Substances Data: 19438-64-3(Hazardous Substances Data)

Usage

Uses

Used in Electronic Information Materials:
Methyl tetrahydrophthalic anhydride is used as a key intermediate for the development and production of electronic information materials, contributing to the advancement of technology in this sector.
Used in Medicine:
In the pharmaceutical industry, Methyl tetrahydrophthalic anhydride is utilized as an intermediate for the synthesis of various medicinal compounds, playing a crucial role in drug development.
Used in Pesticides:
Methyl tetrahydrophthalic anhydride is used as a pesticide intermediate, aiding in the creation of effective and environmentally responsible pest control solutions.
Used in Resin Production:
As an intermediate in the production of unsaturated polyester resins, Methyl tetrahydrophthalic anhydride contributes to the development of high-quality resins for various applications.
Used in Epoxy Resin Curing:
Methyl tetrahydrophthalic anhydride is used as an epoxy resin curing agent, enhancing the properties and performance of epoxy resins in various industrial applications.
Used in Coatings Industry:
In the coatings industry, Methyl tetrahydrophthalic anhydride is employed to improve the quality and performance of coatings, providing better durability and protection.
Used in Plasticizers:
Methyl tetrahydrophthalic anhydride is used in the production of plasticizers, which are additives that increase the flexibility and workability of plastics.
Used in Dry-Type Transformer Potting:
Methyl tetrahydrophthalic anhydride is utilized in the potting of dry-type transformers, ensuring the insulation and protection of electrical components.
Used in Defense Industries:
In the defense sector, Methyl tetrahydrophthalic anhydride serves as a vital intermediate for the development of advanced materials and technologies.

InChI:InChI=1/C9H10O3/c1-9-5-3-2-4-6(9)7(10)12-8(9)11/h3,5-6H,2,4H2,1H3

Upstream product

• 108-31-6 maleic anhydride 
• 78-79-5 isoprene 
• 3425-89-6 4-methyl-1,2,3,6-tetrahydrophthalic anhydride 

Relevant articles and documents

Ionic liquid, preparation method and application

The invention relates to an ionic liquid. Cations of the ionic liquid contain hexafluoroisopropyl sulfonic acid groups. According to the ionic liquid provided by the invention, the hexafluoroisopropylsulfonic acid groups are introduced into the cation part of the ionic liquid to give a super acid center to the ionic liquid, through changing anion types, the ionic liquid of which the acidity is greater than that of 98% concentrated sulfuric acid is obtained, and the highest level of the hamlet acidity (H0) in the obtained ionic liquid can reach -14.13.