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Reaction mass of 3-[(4-amino-6-bromo-5,8-dihydro-1-hydroxy-8-imino-5-oxo-2-naphtyl)amino]-N,N,N-trimethylanilinium chloride and 3-[(8-amino-dibromo-5-hydroxy-4-imino-1-oxo-1,4-dihydronaphthalenyl)amino]-N,N,N-trimethylbenzenaminium chloride and 3-[(bromo-1,4-dihydroxy-8-imino-5-oxo-5,8-dihydronaphthalenyl)amino]-N,N,N-trimethylbenzenaminium chloride
EC number: 916-466-1 | CAS number: -
- Life Cycle description
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- Environmental data
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- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
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Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
In this study, Basic Blue 99 was found to inhibit the growth of the freshwater green alga Pseudokirchneriella subcapitata after 72 hours with the following effect values (based on calculated test item concentrations): The EC50-values with 95% confidence intervals for inhibition of growth rate (ErC50) and yield (EyC50) after 72 hours were 0.253 (0.211 – 0.304) mg/L and 0.0552 (0.0439 – 0.0673) mg/L, respectively. The NOEC-values for both inhibition of growth rate and yield after 72 hours were 0.0258 mg/L. All effect level are based on the calculated test item concentrations.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 0.06 mg/L
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