Product information
Isophthalic acid
- CAS No.
- 121-91-5
- Formula
- C₈H₆O₄
- Molecular weight
- 166.13 g/mol
- Synonyms
- 1,3-Benzenedicarboxylic acid
Capot supports the scale-up of Isophthalic acid from kilogram quantities to commercial supply, together with process optimization and quality control based on customer specifications.

Product overview
Isophthalic acid (CAS 121-91-5) belongs to the chemical family of substituted aromatic compounds and contains a carboxylic acid group; its molecular formula is C8H6O4 and its molecular weight is 166.13 g/mol. The relevant functional group may support ester or amide formation in subsequent organic synthesis; this is potential synthetic reactivity rather than a verified end use.
Application areas
Depending on the synthesis route and project requirements, this product may also be suitable for other related organic synthesis applications.
Potential uses
- Its free carboxylic acid may be activated for amide formation with appropriate amines or converted to esters to produce related derivatives.
Typical specifications
| Item | Typical specification |
|---|---|
| Appearance | White powder, free of impurities |
| Purity | NLT 99.9% |
| Water content | NMT 0.1% |
Specific quality parameters can be confirmed based on project and application requirements. The final product specifications are those agreed upon by both parties.
Production & quality support
Quality support
- Process development, optimization and scale-up
- Analytical testing and quality control
- Batch documentation and technical information support
Scale & supply
- Commercial manufacturing and supply capabilities from kilogram to ton scale
- Assessment of customer specifications and quality requirements
- Long-term reliable supply support
Supply scale:Hundred-kilogram scale
Available documents
- Product specification (SPEC)
- Safety data sheet (SDS)
- Certificate of analysis (COA)
- Route of synthesis (ROS)
- Method of analysis (MOA)
- Analytical data
- Regulatory and quality declarations
Related documents may be evaluated and provided based on the product, project stage, progress of cooperation, and confidentiality requirements.
Website information is for reference only. For product specifications and related materials, please refer to the final official documents confirmed by our company.
Custom requirements
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