Product information
4,5-Dichlorophthalic anhydride
- CAS No.
- 942-06-3
- Formula
- C₈H₂Cl₂O₃
- Molecular weight
- 217.01 g/mol
- Synonyms
- 5,6-dichloroisobenzofuran-1,3-dione
Backed by process development and scale-up capabilities, Capot can provide stable kilogram-to-commercial-scale supply of 4,5-Dichlorophthalic anhydride and support custom specifications.

Product overview
The compound contains an aromatic benzene ring, a carboxylic ester group and an aromatic carbon–chlorine bond.
Application areas
Depending on the synthesis route and project requirements, this product may also be suitable for other related organic synthesis applications.
Potential uses
- The ester group may undergo hydrolysis or transesterification as a possible step in further derivatization.
Typical specifications
| Item | Typical specification |
|---|---|
| Appearance | 类白色至淡黄色粉末Off-white to light yellow powder |
| Purity | NLT 97.0% |
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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