Registration Dossier
Registration Dossier
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EC number: 284-748-5 | CAS number: 84962-50-5
Endpoint summary
Administrative data
Description of key information
The substance is toxic to aquatic life with long lasting effects (Aquatic Chronic 2, H411).
Additional information
Adequate chronic toxicity data is not available for Acid Yellow 236, therefore the aquatic toxicity assessment and classification are based on the short-term toxicity available data.
Acid Yellow 236 is a very water soluble substance, not rapidly degradable. In addition, it is characterized by a negative log Kow, which let to expect a low potential for bioaccumulation.
According to the CLP Regulation (EC) No 1272/2008, acute aquatic toxicity is normally determined using L(E)C50 data on fish, crustacean and/or an algal species. Data is available for fish Poecilia reticulata, Daphnia magna and Pseudokirchneriella subcapitata (previous names: Raphidocelis subcapitata, Selenastrum capricornutum) species; these organisms cover a range of trophic levels and taxa and are considered as surrogate for all aquatic organisms.
The outcomes of the tests performed on the three trophic levels suggest that fish is the most sensitive species, thus the classification should be based on the related data; information on fish fixed the short-term effect level in the range of 1 -10 mg/l.
No L(E)C50 value was recorded at concentration equal/lower than 1 mg/l, thus the classification criteria for acute (short-term) aquatic hazard (category 1) of the CLP Regulation (EC) No 1272/2008 are not met.
On the basis of the short-term toxicity data on the three trophic levels, effects were recorded in the range of 1 - 10 mg/l; therefore, the substance can be classified as hazard to the aquatic environment in category 2 (H411), according to the CLP Regulation (EC) No 1272/2008..
In conclusion, the outcomes of the tests performed on the three trophic levels showed that Acid Yellow 236 is toxic to aquatic life with long lasting effects.
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