Registration Dossier
Registration Dossier
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EC number: 281-692-3 | CAS number: 84012-52-2
Endpoint summary
Administrative data
Description of key information
Short-term toxicity to aquatic invertebrates: EC50 (48h) = 1.5 mg/l.
Toxicity to aquatic algae and cyanobacteria - WAIVING
Toxicity to aquatic plants other then alge: ErC50 (7d, nominal a.i.) = 17.1 mg/l.
Additional information
The evaluation of the Aquatic toxicity of the target substance is based on experimental results conducted on Similar Substance 01 and Similar Substance 03 based on the Read Across approach. The complete justification for the RA is detailed at section 13.
Two of the three trophic level were analized by means of experimental result:
Short-term toxicity to aquatic invertebrates:
The test [Huntsman Textile Effects (Germany) GmbH, 1994] used for the assessment was conducted on the Similar Substance 03, a different salification of the target substance. Under the test condition the tested substance, after 48h, shows an EC50 = 1.5 mg/l.
Toxicity to aquatic algae and cyanobacteria - WAIVING
The substance is a dyestuff which could influence the photosynthesis capacity of algae cells in the test solution and in order to clarify the (eco)toxicological properties related to toxicity for aquatic plants, the item has been tested using Lemna minor as a test organism.
Toxicity to aquatic plants other then alge
Similar Substance 01 has been tested for its toxicity to Lemna minor according to the OECD guideline 221. Under the test condition the tested substance, after 7d, shows an ErC50 = 17.1 mg/l.
Justification for classification or non-classification
According to the CLP Regulation (EC n. 1272/2008) Table 4.1.0 (b)(iii), a substance has to be classified as Category Chronic 2 if:
the substance is not rapidly biodegradable and
- 96 hr LC50 (for fish) > 1 to ≤ 10 mg/l and/or
- 48 hr EC50 (for crustacea) ≤ 10 mg/l and/or
- 72 or 96 hr ErC50 (for algae or other aquatic plants) ≤ 10 mg/l
Based on the result available for crustacea (EC50 = 1.5 mg/l) the substance is classified as Category Chronic 2; H411: Toxic to aquatic life with long lasting effects.
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