Registration Dossier
Registration Dossier
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EC number: 253-168-4 | CAS number: 36727-29-4
PBT assessment
Administrative data
PBT assessment: overall result
- PBT status:
- the substance is not PBT / vPvB
- Justification:
Due to the rapid hydrolysis of the parent compound 3,5,5-trimethylhexanoyl chloride (CAS 36727-29-4), the environmental assessment is mainly based on its hydrolysis product 3,5,5-trimethylhexanoic acid (CAS 3302-10-1). 3,5,5-trimethylhexanoic acid is readily biodegradable according to OECD criteria. 3,5,5-trimethylhexanoyl chloride and 3,5,5-trimethylhexanoic acid are not B/vB since both substances have a log Kow less than 4 at environmentally relevant pH (see IUCLID chapter 4.7). 3,5,5-trimethylhexanoyl chloride and 3,5,5-trimethylhexanoic acid are not considered to be T as the screening criteria for T are not fulfilled, based on the lowest available acute value being > 0.1 mg/L (see UICLID Ch. 6.1.3).
In conclusion, the parent compound 3,5,5-trimethylhexanoyl chloride (CAS 36727-29-4) is considered to be neither PBT nor vPvB, based on the available data for the hydrolysis product 3,5,5-trimethylhexanoic acid (CAS 3302-10-1).
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