Registration Dossier
Registration Dossier
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EC number: 939-227-3 | CAS number: -
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
Standard microbial test data are unavailable. STP toxicity testing is not needed as the substance is readily biodegradable. Moreover, at the concentration used in the ready biodegradability test (100 mg/L), the substance is not inhibitory. This concentration is used as a NOEC value.
Key value for chemical safety assessment
- EC10 or NOEC for microorganisms:
- 100 mg/L
Additional information
In accordance with Annex VIII Section 9.1.4 of Regulation (EC) No. 1907/2006, an activated sludge respiration inhibition test does not need to be conducted if the substance is found to be readily biodegradable. The initial test substance concentration of 100 mg/L used in the ready biodegradability test is considered to be the concentration at which toxicity to the inoculum can be ruled out and, in accordance with ECHA Guidance on information requirements and chemical safety assessment Chapter R10: Characterisation of dose [concentration]-response for the environment, this value can be used to calculate the STP PNEC in the absence of standard microbial tests.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
