Registration Dossier
Registration Dossier
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EC number: 270-472-2 | CAS number: 68441-68-9
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Readily biodegradable (75% in 28 d, OECD 301F)
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
There is one study available, in which the ready biodegradability of Tetraesters of 2,2-bis(hydroxymethyl)propane-1,3-diol and decanoic and octanoic acid (CAS 68441-68-9) was assessed according to OECD guideline 301F and GLP by inoculating a nominal concentration of 100 mg/L test item with 30 mg/L activated sludge for 28 d. Procedure and toxicity controls were run in parallel.
After 28 d, the test item attained 75% biodegradation. According to OECD and ECHA guidance documents, the 10-day window can be waived for UVCB substances. Therefore, the substance is readily biodegradable according to guideline criteria, since > 60% biodegradation was achieved within 28 d. This result is confirmed by a reliable QSAR calculation using BIOWIN v4.10 for the two main constituents (C8 and C10).
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