Registration Dossier
Registration Dossier
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 204-616-2 | CAS number: 123-30-8
Endpoint summary
Administrative data
Description of key information
Additional information
This substance was not ready biodegradable in the standard screening study, but in several other types of biodegradation studies, 4 -aminophenol was considered inherently biodegradable with pre-adaptation. Three studies observed significant (≥ 66%) biodegradation of the test substance when using pre-adapted sludge, and can be considered inherent, primary biodegradable ( > 20% as defined in OECD Guideline for testing of Chemicals, Revised Introduction to the OECD guidelines for testing of chemicals, section 3, 23 March 2006). Two of the screening studies support the concept that the substance is inherent, ultimate biodegradable (> 70 % as defined in OECD Guideline for testing of Chemicals, Revised Introduction to the OECD guidelines for testing of chemicals, section 3, 23 March 2006) with 92%biodegradation in 22 days with pre-adapted sludge (synthetic activated sludge acclimated to 1000 ppm COD test) using a SCAS unit and > 87 % DOC removal in 5 days. This is an indication that the substance has the potential for degradation under favorable conditions, such as STP or biological treatment plant.
Biodegradation in sediment or soil is likely to be irrelevant as given the physical-chemical properties of this substance, the substance is unlikely to partition to the sediment and soil compartment.
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.
