Phthalic anhydride CAS 85-44-9 PA

Phthalic anhydride

Name	Phthalic anhydride
Synonyms	2,5-Isobenzofurandione;PA
Molecular Structure
Molecular Formula	C8H4O3
Molecular Weight	148.12
CAS Registry Number	85-44-9
EC Number	201-607-5

Specification:

Uses:

1. Produce phthalate plasticizers (DOP, DBP, etc.) to plasticize PVC plastics.

2. Production of unsaturated polyester/alkyd resin for fiberglass, coatings, and adhesives.

3. Synthesize anthraquinone dyes and phthalocyanine pigments for printing, dyeing, and ink applications.

4. Synthesize pharmaceutical/reagent products such as sodium saccharin and phenolphthalein as organic synthesis intermediates.