Registration Dossier
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EC number: 203-916-0 | CAS number: 111-86-4
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
Green algae: 72-h ErC50: 0.23 mg/L (nominal; BASF AG, 1997)
Green algae: 72-h NOEC: 0.01 mg/L (nominal; BASF AG, 1997)
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 0.23 mg/L
- EC10 or NOEC for freshwater algae:
- 0.01 mg/L
Additional information
There are data for three studies available. The key study was performed by BASF (1997), the two other studies were reported by Bollmann et al. (1989). The test concentrations in the study of the latter source were analytically verified. One of these study was performed with neutralised medium. The EC50 values are within the same range and clearly below 1 mg/L.
Endpoint |
Organism group |
Species |
Value [mg/L] |
Reliability |
Source |
72-h ErC50 72-h NOEC |
Aquatic algae |
Desmodesmus subspicatus |
0.23 (nominal) 0.01 (nominal) |
2 |
BASF AG (1997) |
96-h EC50 |
Aquatic algae |
Pseudokirchneriella subcapitata |
0.220 (measured; neutralised) |
4 |
Bollmann et al. (1989) |
96-h EC50 |
Aquatic algae |
Pseudokirchneriella subcapitata |
0.070 (measured) |
4 |
Bollmann et al. (1989) |
Based on the key study, octylamine is acutely very toxic for aquatic algae.
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