Specialty Intermediates
Chloro phthalic anhydrides

Unique Reactive Chemicals

 SABIC Innovative Plastics’ portfolio of specialty chemical intermediates encompasses anhydrides and phenolics. They feature unique property profiles, including reactivity, chemical functionality and solubility, and high purity.
These materials are produced globally and are conveniently available in small to large-scale quantities.

3ClPA (3-chlorophthalic anhydride)


CAS number: 117-21-5
Form: White solid
Potential applications: Starting material for pigments, plastics, pharmaceuticals, pesticides


4ClPA (4-chlorophthalic anhydride)


CAS number: 118-45-6
Form: White solid
Potential applications: Starting material for pigments, plastics, pharmaceuticals, pesticides
Key performance attributes
  • Reactivity
  • High purity
  • Chemical functionality
Product Name CAS Number Physical form Purity % Melting point (°C) Mol. Weight (g/mol) Spec. Gravity (g/cm3) TDS MSDS
4ClPA 4-Chlorophthalic Anhydride 118-45-6 White solid >95% 97 183 1.59 TDS (PDF) Request MSDS
3ClPA 3-Chlorophthalic Anhydride 117-21-5 White solid >95% 128 183 1.59 TDS (PDF) Request MSDS