Registration Dossier
Registration Dossier
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EC number: 240-040-8 | CAS number: 15901-40-3
Long-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
A 21-day NOEC of 1.6 mg/l (nominal concentration) in unbuffered media has been determined for the effects of cyclohexylamine on reproduction of Daphnia magna.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 1.6 mg/L
Additional information
A 21-day NOEC of 1.6 mg/l (nominal concentration) in unbuffered media has been determined for the effects of cyclohexylamine on reproduction of Daphnia magna in compliance with OECD Test Guideline 211 (Daphnia magna Reproduction Test) (data from ECHA registration dossier, review article or handbook, MITI 1997).
Details from the study report show that the pH rose significantly in the highest concentrations tested. However, the pH in the concentrations relevant for the NOEC value (1.6 mg/l) were reported to be up to 8.1, and up to 8.0 for the next concentration up (2.9 mg/l). The pH at the relevant effect concentrations are not above the recommended values in the OECD guidance, and are not unrealistic for environmental conditions.
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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