Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

According to test result of ready biodegradation (IUCLID5 section 5.2.1), tetrahydromethylphthalic anhydride (MTHPA) changed to the dissociated substance, which was stable under the chosen conditions.

Endpoint simulation tests in water, sediment and soil (IUCLID5 sections 5.2.2 and 5.2.3) were waived as direct or indirect exposure of the aquatic and terrestrial compartments for this substance are unlikely.

Additionally according to the hydrolysis results (see IUCLID5 section 5.1.2), when this chemical is released into water or other environment compartment it is rapidly degraded in a few minutes and thoroughly hydrolyzed to the corresponding dicarboxylic acids. These hydrolysis products are not readily biodegraded.