Registration Dossier
Registration Dossier
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EC number: 269-128-4 | CAS number: 68187-84-8
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
3h-NOEC: 100 mg/L (read across from blown rapeseed oil).
Key value for chemical safety assessment
- EC10 or NOEC for microorganisms:
- 100 mg/L
Additional information
Studies are available for blown linseed oil (BLO) and blown rapeseed oil (BRO). For BLO, two Robra single species studies withPseudomonas putidaare available. As these are single species studies, preference is given to the OECD 301B study on Biodegradation. In this study it was shown that at a concentration of 15.5 mg substance/L, the relative biodegradation values calculated from the measurements performed during the test period revealed 76 and 79% biodegradation occurred, similar as the toxicity control. In the toxicity control more than 25% biodegradation occurred within 14 days. Therefore, the test substance was assumed not to inhibit microbial activity at the level of the concentration of 15.5 mg/L. For BRO, also a ROBRA single species study with Pseudomonas putidais available as well as an Activated Sludge, Respiration Inhibition Test (OECD Guideline 209). The latter, selected as key study, resulted in a 3-hour NOEC of 100 mg/L. Both values are above the water solubility of the substance (< 1 mg/L).
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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