Registration Dossier
Registration Dossier
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EC number: 270-560-0 | CAS number: 68443-84-5
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
NOEC (14d) >= 28.7 mg/L (nominal) for activated sludge (toxicity control of biodegradation test OECD 301B)
Key value for chemical safety assessment
Additional information
Since no studies on the toxicity of DiPE triisononanoate triethylhexanoate (CAS No. 68443-84-5) to aquatic microorganisms are available a ready biodegradability study is used to derive a NOEC for the toxicity to aquatic microorganisms. In accordance with the ECHA Guidance R.7b (ECHA, 2012b) the result from a biodegradation study can be used to derive a NOEC if a compound degrades well in a ready biodegradability test, or does not inhibit the degradation of a positive control at a certain concentration (biodegradation > 25%). For DiPE triisononanoate triethylhexanoate (CAS No. 68443-84-5) a biodegradation test according to OECD 301B is available (Muckle, 2012). The toxicity control, containing 28.7 mg/L of the test substance and 26 mg/L of the reference material aniline attained 40% degradation after 14 days of incubation. Hence, the substance is not toxic to aquatic microorganisms in the toxicity control and the test item concentration of 28.7 mg/L can be used to derive the NOEC of >= 28.7 mg/L.
References:
A detailed reference list is provided in the technical dossier (see IUCLID, section 13) and within the CSR.
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