Registration Dossier
Registration Dossier
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EC number: 255-350-9 | CAS number: 41395-83-9
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Readily biodegradable: ≥60% in 28 days
The hazard assessment is based on the currently available data. New studies with the registered substance and/or other member substances of the glycol esters category will be conducted in the future. The finalised studies will be included in the technical dossier as soon as they become available and the hazard assessment will be re-evaluated accordingly.
For further details, please refer to the category concept document attached to the category object (linked under IUCLID section 0.2) showing an overview of the strategy for all substances within the glycol esters category.
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
- Type of water:
- freshwater
Additional information
The hazard assessment is based on the currently available data. New studies with the registered substance and/or other member substances of the glycol esters category will be conducted in the future. The finalised studies will be included in the technical dossier as soon as they become available and the hazard assessment will be re-evaluated accordingly.
For further details, please refer to the category concept document attached to the category object (linked under IUCLID section 0.2) showing an overview of the strategy for all substances within the glycol esters category.
There is no study available, in which the biodegradation of propylene dinonanoate (CAS 41395-83-9) was tested. Therefore, read-across to the structurally related source substance decanoic acid, mixed diesters with octanoic acid and propylene glycol (CAS 68583-51-7) was performed in accordance with Regulation (EC) No 1907/2006 Annex XI, 1.5. The source substance is characterized by similar fatty acid chain lengths as well as alcohol component and is therefore considered suitable representative for the assessment of the biodegradability of the target substance.
Three studies are available evaluating the ready biodegradability of the source substance decanoic acid, mixed diesters with octanoic acid and propylene glycol (CAS 68583-51-7).
The key study was conducted according to the EU Method C.4-C (GLP) under aerobic conditions using domestic activated sludge as inoculum. A mean biodegradation of 82% was observed after 28 d. The substance reached the pass level biodegradation of > 60% within the 10-day window and is therefore considered readily biodegradable.
This result is supported by two GLP-Guideline studies with the same source substance decanoic acid, mixed diesters with octanoic acid and propylene glycol according to OECD 301B using secondary effluent from an activated-sludge plant as inoculum. A mean biodegradation of 104.5 and 107.6%, respectively, and the fulfilment of the 10-day window criterion classify the source substance as readily biodegradable.
On the basis of the read across data, the target substance propylene dinonanoate (CAS 41395-83-9) is considered readily biodegradable.
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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