Registration Dossier
Registration Dossier
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EC number: 255-713-1 | CAS number: 42222-50-4
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Readily biodegradable: 95.6% (CO2 evolution) in 28 days
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
One ready biodegradation study is available for 2,2-dimethyl-1,3-propanediyl dioleate (CAS No. 42222-50-4).
This key ready biodegradability study was carried out with 2,2-dimethyl-1,3-propanediyl dioleate (CAS No. 42222-50-4), following the OECD Guideline 301 B (Häner, 2007). Activated sludge from the aeration tank of a municipal wastewater treatment plant was used as inoculum. During the 28-day test period, biodegradation reached 95.6%, based on CO2 evolution, and the 10-day window criterion was met.
An additional supporting study carried out with 2,2-dimethyl-1,3-propanediyl dioleate (CAS No. 42222-50-4) was conducted according to the guideline CEC L 33 T 82, which investigates primary biodegradation (Oleon, 1991). > 95% biodegradation was reported for the 21-day test period. Due to the non-standard guideline and the lack of detailed information on the test procedure, the reliability of this test cannot be properly assessed. Nevertheless, this study also supports the biodegradability of the test substance.
In conclusion, 2,2-dimethyl-1,3-propanediyl dioleate (CAS No. 42222-50-4) can be considered readily biodegradable according to OECD criteria.
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