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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Toxicity to microorganisms

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Administrative data

Link to relevant study record(s)

Description of key information

The test substance, 4,4'-Isopropylidenediphenol, oligomeric reaction products with 1-chloro-2,3-epoxypropane, reaction products with fatty acids, C18-unsatd., dimers was accessed for toxic potential to sewage sludge in an O.E.C.D. test guideline 209 study.

Key value for chemical safety assessment

EC50 for microorganisms:
1 000 mg/L

Additional information

The test substance, 4,4'-Isopropylidenediphenol, oligomeric reaction products with 1-chloro-2,3-epoxypropane, reaction products with fatty acids, C18-unsatd., dimers was reported to have an IC50 value of > 1000 mg/L for activated sewage sludge in an O.E.C.D. test guideline 209 studies. Therefore, the test substance is not anticipated to have an adverse effect upon sewage sludge in waste-water treatment plants.