Registration Dossier
Registration Dossier
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EC number: 252-917-2 | CAS number: 36211-43-5
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
Aquatic toxicity studies with barium 3,5,5-trimetylhexanoate are not available.Read-across to the assessment entities soluble barium substances and trimethylhexanoic acid (and its structural analogue neodecanoic acid) is applied for the assessment of barium 3,5,5-trimethylhexanoate since the ions of barium 3,5,5-trimethylhexanoate determine its fate and toxicity in the environment. Reliable data available for soluble barium substances and neodecanoate indicate that the moiety of ecotoxicological concern are barium cations. A reliable, nominal 48h-EC50 of 14.5 mg Ba/L was determined whereas a 48 -h EL50 > 457 mg/L for Daphnia magna was derived for neodecanoic acid, the structural analogue of trimethylhexanoic acid. This is supported by QSAR-based estimations for trimethylhexanoic acid. According to the QSAR-based outcome of the model ECOSAR v.2.0, trimethylhexanoic acid has also a low potential for acute toxicity to aquatic invertebrates since the 48-h LC50 was estimated with 52.3 mg/L for daphnids.
Key value for chemical safety assessment
Additional information
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