Registration Dossier
Registration Dossier
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EC number: 203-336-8 | CAS number: 105-83-9
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
Acutely harmful to algae.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 62.6 mg/L
- EC10 or NOEC for freshwater algae:
- 12.6 mg/L
Additional information
There is one reliable study available regarding the toxic effect of N,N-bis(3 -aminopropyl)methylamine (CAS 105 -83 -9). The study was performed according to OECD 201 under GLP conditions. The test species was Desmodesmus subspicatus. The test concentrations were analytically verified. The measured concentrations were ±20% of the nominal values (97% to 111% mean recovery) with an exception of the lowest test concentration (1 mg/L, nominal), which had a recovery at test start of 200% and was below the LOQ at test end. Nevertheless the effect values are based on nominal concentrations since the lowest concentrations did not show any negative effects. The 72 -h effect values are as follows: NOErC = 3.2 mg/L, ErC10 = 12.6 mg/L, ErC50 62.6 mg/L (BASF SE, 2012; report no. 60E0435/11E098).
In conclusion , the substance is acutely harmful to algae.
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