Registration Dossier
Registration Dossier
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EC number: 223-498-3 | CAS number: 3926-62-3
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
No valid studies are available for SMCA.
One GLP study with MCA (Noack, 1992) showed a 72h-ErC50 of 0.033 mg/L and a 72h-ErC10 of 0.007 mg/L for Scenedesmus subspicatus.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 0.033 mg/L
- EC10 or NOEC for freshwater algae:
- 0.007 mg/L
Additional information
Algae are very sensitive to MCA. Which is not surprising as MCA is a known herbicide.
Two valid studies are available for aquatic algae. One GLP study (Noack, 1992) showed a 72h-ErC50 of 0.033 mg/L and a 72h-ErC10 of 0.007 mg/L for Scenedesmus subspicatus. These results are supported by the study performed by Kuehn et al. (1990) where an EbC50 of 0.028 mg/L and an EbC10 of 0.007 mg/L were found.
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