Registration Dossier
Registration Dossier
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EC number: 435-410-2 | CAS number: 351491-23-1
Endpoint summary
Administrative data
Description of key information
Short-term toxicity to fish:
In a 96 -hr-acute toxicity study, zebra fish (Brachydanio rerio) were exposed to Rhodixan A-1 at 0.32, 0.56, 1.0, 1.8 and 3.2 mg/l (nominal concentrations) under semi-static conditions according to the OECD guideline n°203 (2001).
The 96h-LC50 is calculated to be between 0.94 mg/l and 1.7 mg/l measured concentrations. On a worse case approach, the Rhodixan A-1 is considered as very toxic to the aquatic organisms tested.
Short-term toxicity to aquatic invertebrates:
In a 48 -hr-acute toxicity study, daphnids (Daphnia magna) were exposed to Rhodixan A-1 at 1, 1.8, 3.2, 5.6, 10, 18 and 32 mg/L (nominal concentrations) under static conditions according to the OECD guideline n°202 (2001).
The 48h-NOEC was estimated to be 1.3 mg/l and the 48h-EC50 is calculated to be 3.8 mg/l measured concentrations.
Based on the results of this study, Rhodixan A-1 is considered as toxic to the aquatic organisms tested.
Toxicity to aquatic algae:
In a 72 -hr-acute toxicity study, the cultures of Selenastrum capricornutum were exposed to Rhodixan A-1 at nominal concentrations 0.1, 0.33, 1, 3.3, 10.3 mg/l according to the OECD guideline n°201 (2001).
The 72h-NOEC was estimated to be 0.1 mg/l and the 72h-EC50 is calculated to be 5.1 mg/l for the growth rate and 1.9 mg/l for the biomass expresses as measured concentration.
Based on the results of this study, Rhodixan A-1 is considered as toxic to the aquatic organisms tested.
Additional information
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