Phthalic Anhydride

CAS Number

85-44-9

Synonym

Aromatic dicarboxylic acid anhydride; 1,2-benzenedicarboxylic acid anhydride; 1,2-benzenedicarboxylic anhydride; 1,3-dihydro-1,3-dioxoisobenzofuran; 1,3-dioxonapthalan; 1,3-dioxophthalan; 1.3-dioxo-phthalon; Esen; 1,3-isobenzofurandione; NCI-C03601; Phthalandione; 1,3-phthalandione; Phthalic acid anhydride; o-phthalic anhydride; Retarder esen; Wiltrol P

Occurrence/Use

Monomer for synthetic resins; chemical intermediate in production of phthalate esters, and dyes; organic synthesis; medicine (enteric coatings)

More information about Phthalic Anhydride

Chronic REL

Chronic Inhalation REL (μg/m3):	20
Chronic Target Organs:	Respiratory system
Human Data:	Yes
Last Chronic REL Revision:	2000
Chronic Reference Exposure Levels Comments:	OEHHA 2008. Technical Supporting Document for Noncancer RELs, Appendix D3