Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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EC number: 226-247-6 | CAS number: 5333-84-6
Endpoint summary
Administrative data
Description of key information
Additional information
Biodegradation in water
Primary degradation of the substance itself is rapid but significant ultimate degradation has not been demonstrated.
Modelling of possible biodegradation pathways estimated by enviPath, according to the biotransformation rules, indicates that aerobic degradation of 1,2,3,6-tetrahydro-3-methylphthalic anhydride is likely; the degradation products were identified until two transformation levels.
All these substances were subjected to a Biodegradation screening assessment, according to the EPA BIOWIN 4.10 model.
According to the evaluation criteria set in the ECHA Guidances Chapters R.7b and R.11, 1,2,3,6-tetrahydro-3-methylphthalic anhydride was estimated as being inherently biodegradable and not potentially P or vP to the environment.
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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