Registration Dossier
Registration Dossier
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EC number: 237-926-1 | CAS number: 14073-97-3
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
Study waived. No inhibition observed in several ready biodegradablity studies. The concentrations applied (Müller 2.4 mg/L = 2.14 mg/L DOC; Eisner 20 mg/L = 58 mg/L ThOD; King 11.24 mg/L = 10 mg/L DOC) are within a range that can realistically be expected at the influent of waste water treatment plants.
Key value for chemical safety assessment
- EC10 or NOEC for microorganisms:
- 20 mg/L
Additional information
According to Regulation (EC) No 1207/2006, Annex VIII, column 2, the study does not need to be conducted if the substance is found to be readily biodegradable and the applied test concentrations are in the range of concentrations that can be expected in the influent of a sewage treatment plant. As demonstrated in section biodegradability, the substance is considered as being readily biodegradable. The concentrations applied in the ready biodegradability studies (Müller 2.4 mg/L = 2.14 mg/L DOC; Eisner 20 mg/L = 58 mg/L ThOD; King 11.24 mg/L = 10 mg/L DOC) are within a range that can realistically be expected at the influent of waste water treatment plants. Furthermore the test item did not inhibit microbial activity in the toxicity controls. The study on toxicity of micro-organisms therefore can be waived.
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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