2-Methyl-1,4-benzenedicarboxylic acid
Application- Product Name
- 2-Methyl-1,4-benzenedicarboxylic acid
- CAS No.
- 5156-01-4
- Chemical Name
- 2-Methyl-1,4-benzenedicarboxylic acid
- Synonyms
- DK7272;0/4/56;Nsc20693;Fluralaner-025;Fluralaner Impurity 46;Methylterephthalic acid;5-Methylterephthalic acid;2-Methylterephthalic 2-methylterephthalic acid;Terephthalic acid, methyl-
- CBNumber
- CB31456175
- Molecular Formula
- C9H8O4
- Formula Weight
- 180.16
- MOL File
- 5156-01-4.mol
2-Methyl-1,4-benzenedicarboxylic acid Property
- Melting point:
- 323-325 °C
- Boiling point:
- 388.2±30.0 °C(Predicted)
- Density
- 1.377
- Flash point:
- 202.8℃
- storage temp.
- Sealed in dry,Room Temperature
- pka
- 3.38±0.25(Predicted)
- Appearance
- Off-white to yellow Solid
- InChI
- InChI=1S/C9H8O4/c1-5-4-6(8(10)11)2-3-7(5)9(12)13/h2-4H,1H3,(H,10,11)(H,12,13)
- InChIKey
- UFMBOFGKHIXOTA-UHFFFAOYSA-N
- SMILES
- C1(C(O)=O)=CC=C(C(O)=O)C=C1C
Safety
- HS Code
- 29173990
N-Bromosuccinimide Price
- Product number
- SIK2103-10
- Product name
- 2-Methylterephthalicacid-H2MT/H2BDC-Me
- Purity
- ≥97%
- Packaging
- 1G
- Price
- $558
- Updated
- 2025/07/31
- Product number
- SIK2103-10
- Product name
- 2-Methylterephthalicacid-H2MT/H2BDC-Me
- Purity
- ≥97%
- Packaging
- 250MG
- Price
- $174
- Updated
- 2023/06/20
- Product number
- M3640
- Product name
- 2-Methylterephthalic Acid
- Purity
- min. 95.0 %
- Packaging
- 1G
- Price
- $144
- Updated
- 2025/07/31
- Product number
- J54674
- Product name
- 2-Methylterephthalicacid
- Packaging
- 1g
- Price
- $90
- Updated
- 2021/12/16
- Product number
- 2721-1-0X
- Product name
- 2-Methylterephthalic acid
- Purity
- 98%
- Packaging
- 250mg
- Price
- $180
- Updated
- 2021/12/16
2-Methyl-1,4-benzenedicarboxylic acid Chemical Properties,Usage,Production
Application
2-Methyl-1,4-phthalic acid can be used as an intermediate in pharmaceutical and chemical synthesis, such as in the synthesis of dimethyl 2-methyl terephthalate. Dimethyl 2-methyl terephthalate is an important compound in the synthesis of vinyl terephthalic acid-based chitosan liquid crystal polymers. Currently, most methods employ acid-catalyzed synthesis, resulting in low yields of only about 33% and significant raw material losses. Since dimethyl 2-methyl terephthalate is a necessary intermediate in the synthesis of vinyl terephthalic acid-based chitosan liquid crystal polymers, improving its yield is crucial. However, most acid-catalyzed esterification reactions suffer from low conversion rates. In this reaction, methanol serves as both a reagent and a solvent. Due to its low boiling point, a suitable dehydrating agent cannot be found for use in oil-water separators. Therefore, based on existing research, anhydrous copper sulfate powder, which has strong hygroscopic properties, is added. At 80°C, anhydrous copper sulfate can bind three water molecules, thereby improving the esterification conversion rate. The results of infrared IR and nuclear magnetic resonance (NMR) analyses of the obtained products confirm the correctness of the synthesized compound, laying the foundation for the next step of large-scale synthesis of vinyl terephthalic acid-based chitosan-type liquid crystal polymers.
2-Methyl-1,4-benzenedicarboxylic acid Preparation Products And Raw materials
Raw materials
Preparation Products
2-Methyl-1,4-benzenedicarboxylic acid Suppliers
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View Lastest Price from 2-Methyl-1,4-benzenedicarboxylic acid manufacturers
- Product
- 2-Methyl-1,4-benzenedicarboxylic acid 5156-01-4
- Price
- US $1.60-6.60/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 100kg
- Release date
- 2025-06-19
- Product
- 2-Methyl-1,4-benzenedicarboxylic acid 5156-01-4
- Price
- US $0.10/KG
- Min. Order
- 1KG
- Purity
- 99.0%
- Supply Ability
- 1000 tons
- Release date
- 2020-04-24
- Product
- 2-Methyl-1,4-benzenedicarboxylic acid 5156-01-4
- Price
- US $30.00/Kg/Bag
- Min. Order
- 25Kg/Bag
- Purity
- 99%
- Supply Ability
- 20 Tons
- Release date
- 2020-11-13