Registration Dossier
Registration Dossier
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EC number: 224-909-9 | CAS number: 4548-53-2
Endpoint summary
Administrative data
Description of key information
Additional information
Short term toxicity to aquatic invertebrates:
The median Effective concentration (EC50) value forof Disodium 3-((2,4-dimethyl-5-sulphonatophenyl)azo)-4-hydroxynaphthalene-1-sulphonate (CAS No 4548-53-2) on Daphnia magna in a 48 hour study was estimated to be111.9879 mg/L on the basis of intoxication effects.
Toxicity to aquatic algae and cyanobacteria:
Estimated 72 hrs EC50 value of test substance Disodium 3-((2,4-dimethyl-5-sulphonatophenyl)azo)-4-hydroxynaphthalene-1-sulphonate onPseudokirchneriella subcapitatawas determined by three different models i.e, Battery, Leadscope and SciQSAR used within Danish QSAR database.
Based on inhibition in growth rate of test organism Pseudokirchneriella subcapitata, the estimated 72 hrs EC50 value was found to be1522.986mg/L.
The chemical Ponceau SX (CAS no 4548 -53 -2) is not expected to exhibit aquatic toxicity as per the CLP criteria.
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