Registration Dossier
Registration Dossier
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Reaction mass of tetrasodium 7,7'-(carbonyldiimino)bis[4-hydroxy-3-[(2-methyl-4-sulphonatophenyl)azo]naphthalene-2-sulphonate] and tetrasodium 4-[[1-hydroxy-6-[[[[5-hydroxy-6-[(2-methyl-4-sulphonatophenyl)azo]-7-sulphonato-2-naphthyl]amino]carbonyl]amino]-3-sulphonato-2-naphthyl]azo]benzoate and tetrasodium 4,4'-[carbonylbis[imino(1-hydroxy-3-sulphonatonaphthalene-6,2-diyl)azo]]dibenzoate
EC number: 942-930-8 | CAS number: -
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- no hazard identified
Marine water
- Hazard assessment conclusion:
- no hazard identified
STP
- Hazard assessment conclusion:
- no hazard identified
Sediment (freshwater)
- Hazard assessment conclusion:
- no hazard identified
Sediment (marine water)
- Hazard assessment conclusion:
- no hazard identified
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- no hazard identified
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Conclusion on classification
The substance is not rapidly degradable. Aquatic toxicity data are available for three trophic levels. Data for aquatic plants is available from a study with duckweed (L. gibba) in which 7-d EC50 and EC10 values for growth rate (based on frond numbers) are determined at >900 mg/L. Data for aquatic invertebrates is available from a study with daphnids (D. magna) in which no effects on mobility were observed up to the highest concentration tested. The 48 -h EC50 was determined at 102 mg/L. Data for fish finally is available from two studies. In the key study with golden orfe (L. idus) no mortalities or other symptoms of toxicity were observed up to a tested concentration of 90 mg/L. This study was performed with 500 mg/L test material but as the content of active ingredient in the tested substance was only 18%, the reported 96 -h LC50 value was adjusted from >500 mg/L to >90 mg/L. In addition to this study, effect concentrations are reported from a supporting study with zebra fish (B. rerio) in which a 96 -h LC50 of >200 mg/L was found. The LC50 value determined from the key study is just under the upper limit for classification. However, as this value can be considered a LC0 (rather than a LC50) and in the supporting study also complete lack of mortality is reported, toxicity to fish is considered very unlikely to occur.
Based on all this information, the substance does not need to be classified for the environment according to regulation EC/1272/2008 (CLP).
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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