Registration Dossier
Registration Dossier
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EC number: 224-167-6 | CAS number: 4221-98-1
Endpoint summary
Administrative data
Description of key information
Short-term toxicity to fish
The 96h LC50 of the test item was determined to be > 0.59 mg/L (based on geometric mean measured concentration).
Short-term toxicity to aquatic invertebrates
The 48h EC50 of the substance was determined to be 0.513 mg/L (based on geometric mean measured concentration).
Toxicity to aquatic algae
The 72h ErC10 and the ErC50 (growth rate) of the test item was determined to be 0.264 and 0.465 mg/L, respectively. The 72h EyC10 and the EyC50 (yield) of the test item was determined to be 0.013 and 0.147 mg/L, respectively.
Toxicity to microorganisms
According to the ECHA Guidance document R7b, no further test on the toxicity to microorganisms has to be conducted if the toxicity control in a ready biodegradability test shows no inhibitory effects on microorganisms. As the toxicity control in the Closed Bottle Ready Biodegradability Test (see IUCLID section 5.2.1) showed no inhibition of the microbial activity at a substance concentration of 2.2 mg/L, no further test is necessary to evaluate the respiration inhibition of activated sludge. The concentration used in the toxicity control (2.2 mg/L) can be used as NOEC value.
Additional information
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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