Registration Dossier
Registration Dossier
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EC number: 240-040-8 | CAS number: 15901-40-3
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
A 72-hour EC50 value of 29.3 mg/l and NOEC value of 10.3 mg/l (nominal concentration) in unbuffered media have been determined for the effects of cyclohexylamine on growth rate of Pseudokirchneriella subcapitata.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 29.3 mg/L
- EC10 or NOEC for freshwater algae:
- 10.3 mg/L
Additional information
A 72-hour EC50 value of 29.3 mg/l and NOEC value of 10.3 mg/l (nominal concentration) in unbuffered media have been determined for the effects of cyclohexylamine on growth rate of Pseudokirchneriella subcapitata in compliance with OECD Test Guideline 201 (Alga, Growth Inhibition Test) (data from ECHA registration dossier, review article or handbook, MITI 1997).
The pH of the test media was quite high during the algal test (up to 9.3). It therefore cannot be ruled that pH did not have an influence on the effects observed during this test.
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