4-Chlorophthalic Anhydride

Raw Materials for Di-anhydride(BPDA) Production, BPDA is the monomer for Polyimide production
1. CAS number: 118-45-6
2. Formula: C
8
H
3
ClO
3
3. MW.: 182.56
4. Structure:

5. Properties: colorless or yellowish flake or crystalline powder, boiling point, 294~295°C,melting point, 92~98°C, and non-toxic, no odor at normal temperature.
6. Technical Specification

Item
4-Chlorophthalic Anhydride
CAS
118-45-6
Appearance
qualified
1st Grade
High grade
colorless or yellowish flake or crystalline powder
Melting point, °C
92~98
Purity (HPLC), %,≥
95
98
99
7. Application: used in the synthesis of polyimide monomers such as 3,3’,4,4’-biphenyl tetracarboxylic diandhydride (BPDA), 3,3',4,4'-diphenyloxide tetracarboxylic dianhydride (ODPA), hydroquinone diphthalic anhydride (HQDPA), 3,3’,4,4’-thiodiphthalic anhydride (TDPA), and 3,3',4,4'- Diphenylsulfone tetracarboxylic dianhydride (DSDA), etc..
Used in the synthesis of anthraquinone and phthalocyanine dyes, plant growth regulators, herbicides, anti-oxidants, germicides, anthelmintics, antihyperglycemic drugs and anti- spasmodics, new organic materials with magnetism and fluorescence, etc..