Registration Dossier
Registration Dossier
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EC number: 617-769-9 | CAS number: 858956-08-8
PBT assessment
Administrative data
PBT assessment: overall result
- PBT status:
- the substance is not PBT / vPvB
- Justification:
The PBT Assessment is based on the criteria set out in the “Guidance on information requirements and chemical safety assessment, Chapter R.11: PBT Assessment” (ECHA, 2017).
Persistence (P) Assessment:
The substance is not readily biodegradable according to the OECD criteria (4% biodegradation after 28 d (OECD 301 F). In aquatic sediment test systems (OECD 308), the first-order DT50 values for degradation in the water phase, and total system was > 365 days. A study testing the biodegradation of the test substance in soil (OECD 307) derived DT50 values of 433, 120 and 126 days. Based on the available data the substance is considered Persistent (P) or very Persistent (vP).
Bioaccumulation (B) Assessment:
Based on the very low experimentally determined log Pow (log Pow -1.12 at 20°C, OECD 107) bioaccumulation of the substance is not expected. Thus, the substance is concluded not meeting the B/vB criteria.
Toxicity (T) Assessment:
Chronic toxicity data are available for algae, fish and daphnids. The lowest NOEC (21 d) was > 0.01 (NOEC: ≥ 6.0 mg a.s./L, mean measured, OECD 211, Daphnia magna) and the lowest acute value is clearly greater than 0.1 mg/L (EC50 (48 h): 43 mg/L, mean measured, OECD 202, Daphnia magna). The substance is furthermore not classified as carcinogenic, mutagenic or toxic for reproduction nor is there any evidence of chronic toxicity according to the consolidated version of Regulation (EC) No. 1272/2008 (CLP) considering all further amendments. The criteria for “T” are therefore not met.
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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