5156-00-3

Basic information

• Product Name: 2-Methoxyterephthalic acid
• Synonyms: 2-Methoxyterephthalic acid;2-METHOXYTEREPHTHALIC ACID（WS201524）
• CAS NO: 5156-00-3
• Molecular Formula: C₉H₈O₅
• Molecular Weight: 196.15682
• Mol File: 5156-00-3.mol
• Article Data: 9

Chemical Properties

• Melting Point: 270-280 °C
• Boiling Point: 407.9°Cat760mmHg
• Flash Point: 169.1°C
• Appearance: /
• Density: 1.416g/cm³
• Vapor Pressure: 2.19E-07mmHg at 25°C
• Refractive Index: 1.59
• PKA: 3.67±0.10(Predicted)
• CAS DataBase Reference: 2-Methoxyterephthalic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 2-Methoxyterephthalic acid(5156-00-3)
• EPA Substance Registry System: 2-Methoxyterephthalic acid(5156-00-3)

Safety Data

• Hazardous Substances Data: 5156-00-3(Hazardous Substances Data)

Usage

General Description

2-Methoxyterephthalic acid is a chemical compound with the molecular formula C9H8O5 and is classified as a substituted terephthalic acid. It is used in the production of high-performance polymers, such as polyesters and polyamides, due to its strong thermal and chemical stability. The methoxy group in its structure alters the physical and chemical properties of the compound, making it useful for a wide range of industrial applications. 2-Methoxyterephthalic acid is also used as a precursor in the synthesis of pharmaceuticals, agrochemicals, and other specialty chemicals. Its versatility and effectiveness in various chemical processes make it a valuable ingredient in many industries.

InChI:InChI=1/C9H8O5/c1-14-7-4-5(8(10)11)2-3-6(7)9(12)13/h2-4H,1H3,(H,10,11)(H,12,13)

Upstream product

• 79744-81-3 5-ethyl-2-methylphenyl methyl ether 
• 58621-38-8 4'-allyl-3'-hydroxyacetophenone 
• 77-78-1 dimethyl sulfate 
• 124-38-9 carbon dioxide 
• 100-66-3 methoxybenzene 
• 579-75-9 2-Methoxybenzoic acid 
• 6520-87-2 methyl 4-cyano-3-hydroxybenzoate 
• 100-84-5 1-methoxy-3-methyl-benzene 
• 81245-24-1 methyl 4-methyl-2-methoxybenzoate 
• 6342-72-9 dimethyl hydroxyterephthalate 
• 7722-84-1 dihydrogen peroxide 
• 704-45-0 2-methoxy-4-methylbenzoic acid 
• 57415-35-7 2-methoxy-4-methylbenzaldehyde 
• 1706-11-2 2,5-Dimethyl-anisol 

Downstream Products

• 109641-81-8 methoxy-terephthalic acid diallyl ester 
• 636-94-2 2-hydroxyterephthalic acid 
• 3217-34-3 methoxyterephthaloyl chloride 
• 36727-17-0 1,4-dimethyl 2-methoxybenzene-1,4-dicarboxylate 

Relevant articles and documents

Overcoming Crystallinity Limitations of Aluminium Metal-Organic Frameworks by Oxalic Acid Modulated Synthesis

A modulated synthesis approach based on the chelating properties of oxalic acid (H2C2O4) is presented as a robust and versatile method to achieve highly crystalline Al-based metal-organic frameworks. A comparative study on this method and the already established modulation by hydrofluoric acid was conducted using MIL-53 as test system. The superior performance of oxalic acid modulation in terms of crystallinity and absence of undesired impurities is explained by assessing the coordination modes of the two modulators and the structural features of the product. The validity of our approach was confirmed for a diverse set of Al-MOFs, namely X-MIL-53 (X=OH, CH3O, Br, NO2), CAU-10, MIL-69, and Al(OH)ndc (ndc=1,4-naphtalenedicarboxylate), highlighting the potential benefits of extending the use of this modulator to other coordination materials.

Alkoxy-Group-Functionalized UiO-66 as Highly Efficient Adsorbents for Hydrogen Chloride Removal from Aqueous Solution

A series of alkoxy group-functionalized UiO-66 were designed for hydrogen chloride adsorption from aqueous solution, which were characterized by various methods to verify the structures and study the adsorption mechanism. A volcano-shaped change of adsorp

Tuning the hydrogenation activity of Pd NPs on Al-MIL-53 by linker modification

The hydrogenation activity of 3 wt.% Pd nanoparticles supported on various mono-group (H, OCH3, NH2, Cl, and NO2) substituted Al-MIL-53 materials has been investigated. Substituents enhanced the dispersion of palladium nanoparticles on Al-MIL-53, leading to a narrow particle size distribution in the range of 2 to 4 nm. Pd nanoparticles on fresh catalysts were present as a mixture of Pd(ii) and Pd(0) with different ratios. These Pd species readily became metallic in a hydrogen flow even at room temperature. Their activities in hydrogenation of phenol and phenylacetylene are linked to the substituents on the aromatic ring of the framework. Catalysts with electron-donating groups (OCH3 and NH2) show much higher activity than those containing electron-withdrawing groups (Cl and NO2). This behavior might be explained by the hydrogen dissociation abilities of metallic Pd nanoparticles affected by the organic linkers.