Registration Dossier
Registration Dossier
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Reaction products of diazotised 2-amin-6-nitrophenol-4-sulphonic Acid and 2-Amino-4-nitrophenol-6-sulfonic Acid, coupled with a mixture of 6-Amino-4-hydroxy-2-naphthalenesulfonic Acid and Acetylated 6-Amino-4-hydroxy-2-naphthalenesulfonic Acid, subsequently metallized with Chromium (III) Basic Sulfate and Acetic Acid, and at the end diazotised and coupled with p-Cresol, sodium salts
EC number: 405-750-6 | CAS number: -
Endpoint summary
Administrative data
Description of key information
Short-term toxicity to fish:
LC50 (Cyprinus carpio, 96 h) = 748 mg/l
Short-term toxicity to aquatic invertebrates:
EC50 (Daphnia magna, 24 h) = 216 mg/l
QSAR prediction: not classified for aquatic toxicity to Daphnia
Toxicity to aquatic plants other than algae:
ErC50 (Lemna minor, 7d) > 100 mg/l
Toxicity to microorganisms:
IC 50 (3 h)> 100 mg/l
Additional information
Adequate chronic toxicity data are not available for the substance; therefore the aquatic toxicity assessment and classification are based mainly on the short-term toxicity data available on the target substance.
Despite the substance has a log Kow very lower than 4 (indicating a low potential for bioaccumulation), it is not rapidly (bio)degradable.
According to the CLP Regulation (EC 1272/2008), acute aquatic toxicity is normally determined using a fish 96-hour LC50, a crustacean species 48-hour EC50 and/or an algal species 72- or 96-hour EC50.
The acute toxicity to fish, invertebrates and aquatic plants were conducted to:
-Cyprinus carpio according to the OECD Guideline 203 (1984);
-Daphnia magna according to the OECD Guideline 202 (1984);
-Lemna minor, according to the OECD Guideline 221 (2006).
According to the CLP Regulation (EC 12720/2008), the results obtained for the substance did not respect the classification criteria for the hazardous categories to the aquatic environment. Thus, the substance is not classified.
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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