2,2',6,6'-tetra-tert-butyl-4,4'-methylenediphenol

Biodegradation in water and sediment: simulation tests

Administrative data

Endpoint:

biodegradation in water: sediment simulation testing

Type of information:

experimental study planned

Study period:

Testing proposal according to REACH Annex IX

Justification for type of information:

Simulation testing indicates that the substance undergoes rapid primary degradation. The registrants are evaluating degradation product formation and have planned sediment degradation tests to take account of these findings for other regulatory regions. These studies will be performed in the near future. The study will be conducted according to OECD TG 308, EC (eventually with specific modifications as proposed in recent scientific publications).

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 308 (Aerobic and Anaerobic Transformation in Aquatic Sediment Systems)

Test material

Test material information

Constituent 1

Reference substance name:

2,2',6,6'-tetra-tert-butyl-4,4'-methylenediphenol

EC Number:

204-279-1

EC Name:

2,2',6,6'-tetra-tert-butyl-4,4'-methylenediphenol

Cas Number:

118-82-1

Molecular formula:

C29H44O2

IUPAC Name:

2,6-di-tert-butyl-4-[(3,5-di-tert-butyl-4-hydroxyphenyl)methyl]phenol

Details on test material:

- Physical state: Pale yellow powder
- Analytical purity: 99.04%
- Lot/batch No.: 5/87; Indent 9200/9622
- Storage condition of test material: Following its arrival in Compound Control this test substance was stored in the dark at ambient temperature.
- Stability: Infra-red spectra of the test substance were taken. There were no significant differences between the spectra and so, on this basis, the test substance was judged to have been stable for the duration of this study.