Registration Dossier
Registration Dossier
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EC number: 263-417-9 | CAS number: 62121-75-9
Endpoint summary
Administrative data
Description of key information
Reactive Yellow 15 has no harmful effects on aquatic organisms.
Additional information
The aquatic toxicity assessment was based on the following data:
Fish short-term test: No mortality was observed in a 96-h acute toxicity test with Danio rerio. The 96-h LC50 was determined >500 mg/L (analytically verified). The results of the key study are the same as in an older supporting study performed with Leuciscus idus melanotus (96 -h LC50 > 500 mg/L).
Invertebrate short-term test: In the limit concentration of 100 mg/L of the test item Reactive Yellow 15, which corresponds to a geometric mean measured concentration of 43.8 mg/L, no effects on Daphnia magna were observed.
Toxcicity to aquatic plants other than algae: In a test with Lemna gibba the EC50-values for both inhibition of the specific growth rate and yield of fronds (ErC50, EydwC50) and dry weight (ErdwC50, EyC50) were > 15.7 mg/L, respectively. Since the test item hydrolyses over time and neither parent compound nor hydrolysis products caused any acute effects, apparently, the EC50 based on nominal concentrations is used for the hazard assessment.
The 7 d-EC10 (respiration inhibition based on CO2 evolution) on anaerobic bacteria was determined to be >100 mg/L. The 7 d-EC20 was >1000 mg/L. No inhibitory effect on anaerobic microorganisms in a wastewater treatment plant is expected.
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