Registration Dossier
Registration Dossier
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EC number: 455-890-7 | CAS number: 6607-41-6
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
Exposure of algae to 2-phenyl, 3-3-bis (4-hydroxy phenyl) phthalimidine for 72 hours resulted in a median effective concentration (EC50) of 2.6 mg a.i./L (95% confidence interval = 2.0 to 3.2 mg a.i./L) when determined using the number of cells/mL, greater than 8.7 mg a.i./L when calculated using the average specific growth rate, and 3.2 mg a.i./L (95% confidence interval = 2.6 to 4.1 mg a.i./L) when determined using the area under the growth curve. When treatment data are compared to the control, the 72 hour NOEC is 1.4 mg a.i./L 2-phenyl, 3-3-bis (4-hydroxy phenyl) phthalimidine when determined using the number of cells/mL, the average specific growth rate, or the area under the growth curve.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 2.6 mg/L
Additional information
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