Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
Endpoint summary
Administrative data
Description of key information
Additional information
Alkylated Naphthalene was not readily biodegradable under the conditions of the modified Sturm test (OECD Guideline 301 B (Ready Biodegradability: CO2 Evolution). The substance biodegraded 1 - 2% in 28 days.
A study was also conducted to determine inherent biodegradability with Alkylated Naphthalene. The study was performed according to the modified test method based on the OECD guideline No. 310, 2006. The relative biodegradation values calculated from the measurements performed during the test period revealed no significant biodegradation of Alkylated Naphthalene. Thus, Alkylated Naphthalene is designated as not inherently biodegradable.
Based on the information from a ready biodegradation study (28 d degradation: 1 -2%) and an inherent biodegradation testing (56 d degradation: 4.4 %) and on the very low water solubility (<3.75 µg/l) and consequently unlikely hydrolysis in the environment, it has to be assumed that the test substance is persistent in the environment as no biotic degradation was observed. Further biodegradation testing would probably come to the same results. As the chemical safety assessment does not indicate a hazard for the environment, further simulation tests are neither necessary nor helpful.
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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