Registration Dossier
Registration Dossier
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EC number: 212-855-9 | CAS number: 873-94-9
Bioaccumulation: aquatic / sediment
Administrative data
Link to relevant study record(s)
Description of key information
In accordance with column 2 of REACH Annex IX, the bioaccumulation in aquatic species study does not need to be conducted as the substance has a low potential for bioaccumulation (the substance has a log octanol water partition coefficient less than 3).
As no experimental data for bioaccumulation of 3,3,5-trimethylcyclohexanone in aquatic species is available, the BCF for fish is calculated using measured log Kow data (2.6 at 25 °C; see IUCLID section 4.7).
The BCF, calculated using the equation reported in the ECHA Guidance R.7.10.3.2, p. 17: (log BCF = 0.85 x log Kow – 0.70; R2 = 0.897, log Kow range = 1 – 5.5), is approximately 32.4.
The BCF of 32.4 is recommended for 3,3,5-trimethylcyclohexanone bioconcentration in this risk assessment.
Key value for chemical safety assessment
- BCF (aquatic species):
- 32.4 dimensionless
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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