Sodium 2-[[2-amino-8-hydroxy-6-[(methylanilino)sulphonyl]-1-naphthyl]azo]-5-(chloroacetamido)benzenesulphonate

Endpoint summary

Description of key information

The 48 h TL₅₀of FAT 20075/A in Rainbow trout fishes was determined to be >1000 mg/L. The 48-h NOEC, LOEC and EC₅₀ of FAT 20075/C to Daphnia magna was determined to be >100 mg test item/L. The influence of FAT 20075/C on the growth of the freshwater plant Lemna gibba was assessed in a static dose-response test. The 7-day E_yC₅₀ was calculated to be >0.474 mg test item/L for frond number and dry weight. The 7-day E_rC₅₀ was calculated to be >0.474 mg test item/L for frond number and dry weight. The 7-day NOE_yC and the LOE_yC were determined to be 0.474 and >0.474 mg test item/L for frond number and dry weight, respectively. The 7-day NOE_rC and the LOE_rC were determined to be 0.474 and >0.474 mg test item/L for frond number and dry weight, respectively. IC₅₀in the toxicity of FAT 20075/B to activated sludge in a 3-h respiration inhibition test is >320 mg/l.