Attribute | Value |
---|---|
CAS | 787-70-2 |
Appearance | White crystalline powder |
Purity | ≥99% |
Melting Point | 278–282°C |
Solubility | Sparingly soluble in water, soluble in DMF, DMSO, NMP |
Moisture Content | ≤0.2% |
Loss on Drying | ≤0.5% |
Product Name: 4,4'-Biphenyldicarboxylic Acid - High Purity Organic Acid for Polymer and Specialty Applications
CAS Number: 787-70-2
4,4'-Biphenyldicarboxylic Acid is a high-purity aromatic dicarboxylic acid widely used as an intermediate in the production of high-performance polymers, liquid crystal polymers, and specialty chemicals. It appears as a white crystalline powder, virtually odorless, and is sparingly soluble in water but highly soluble in organic solvents such as dimethylformamide, dimethyl sulfoxide, and N-methyl-2-pyrrolidone.
Its chemical structure, featuring two carboxyl groups attached to a biphenyl core, provides excellent rigidity and thermal stability, which makes it a key building block in the synthesis of polyesters, polyimides, and other advanced materials requiring high mechanical strength and thermal resistance.
In polymer manufacturing, 4,4'-Biphenyldicarboxylic Acid is commonly used to produce:
Its rigid biphenyl structure imparts superior dimensional stability, chemical resistance, and mechanical performance to the resulting polymers. This makes it highly suitable for:
Parameter | Specification |
---|---|
Chemical Name | 4,4'-Biphenyldicarboxylic Acid |
CAS Number | 787-70-2 |
Appearance | White crystalline powder |
Purity | ≥99% |
Melting Point | 278-282°C |
Solubility | Sparingly soluble in water, soluble in DMF, DMSO, NMP |
Moisture Content | ≤0.2% |
Loss on Drying | ≤0.5% |
Applications | Polymer intermediates, high-performance polyesters, liquid crystal polymers, specialty chemicals, dyes, pharmaceuticals |
4,4'-Biphenyldicarboxylic Acid's combination of high purity, thermal stability, and chemical versatility makes it an essential raw material for advanced polymer synthesis, high-performance coatings, and specialty chemical formulations.
The product is produced under strict quality control conditions to ensure compliance with industrial and pharmaceutical-grade standards. Each batch is tested for purity, crystallinity, moisture content, and other critical parameters to ensure consistent performance in demanding applications.
Storage: Store in a cool, dry place, protected from strong oxidizers and moisture, to maintain stability and effectiveness.