4,4'-[(isopropylidene)bis(p-phenyleneoxy)]diphthalic dianhydride

Water solubility

Link to relevant study record(s)

Reference

Endpoint:

water solubility

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

the study does not need to be conducted because the substance is hydrolytically unstable at pH 4, 7 and 9 (half-life less than 12 hours)

Justification for type of information:

JUSTIFICATION FOR DATA WAIVING
In accordance with Column 2 of REACH Annex VII, information requirement section 7.7 (water solubility), this study does not need to be conducted as the test substance is hydrolytically unstable at pH 4, 7 and 9 (t ½ < 12 hr)

Description of key information

In accordance with section 7.7 of Column 2 of REACH Annex VII, the water solubility study does not need to be conducted if the substance is hydrolytically unstable at pH 4, 7 and 9.  Data shows that the test material is hydrolytically unstable, with a half-life less than 12 hours. Therefore it is considered justified to omit the water solubility study.