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https://ntp.niehs.nih.gov/go/6211

Phthalic anhydride: Target Organs and Levels of Evidence for TR-159

Bioassay of Phthalic Anhydride for Possible Carcinogenicity (CASRN 85-44-9)

Chemical (Study Title)
CASRN		Peer Review DateRoute/Exposure LevelsStudy Laboratory
Phthalic anhydride
85-44-9		12/13/1978Dosed-Feed
R: 0,7500,15000, MM: 0,16346,32692 (AVG), FM: 0,12019,24038 (AVG) PPM/50 PER GROUP		Frederick Cancer Research Facility

Levels of Evidence

Male Rats: Negative
Female Rats: Negative
Male Mice: Negative
Female Mice: Negative