Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
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: 223-470-0 | CAS number: 3913-02-8
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
Waiver - study is scientifically unjustified
Key value for chemical safety assessment
Additional information
In accordance with Annex VIII Column 2 of Regulation (EC) No 1907/2006 REACH concerning the Registration, Evaluation, Authorisation and Restriction of Chemicals, the adsorption/desorption screening test (required in Section 9.3.1) does not need to be conducted as 2 -butyloctanol decomposes rapidly in the environment.
From the two studies provided for this endpoint it is expected that 2-butyloctanol will be immobile in soils and sediment. Read-across from Guerbet Alcohols and LCA categories has been used to meet the data gap for the 2 -butyloctanol biodegradation endpoint, as described in the ‘Read Across Justification Document’ section 13.A ready biodegradation study by Federle (2009) tested 10 linear primary alcohols from butanol (C4) to docosanol (C22) and concluded that all 10 LCAs are readily biodegradable and satisfy the 10-day criterion.
It is concluded that given the very close similarity between C6-C22 LCAs (both linear and Guerbet) as well as similar physico-chemical properties and structure, it is fully expected that 2-butyloctanol will also be readily biodegradable.
In conclusion, whilst the substance may adsorb readily to sediment, sludge and soil, it will rapidly degrade. In addition, where a substance does sorb to sediment or soil, the substance will be readily degraded as it desorbs. Based on the evidence in section 5.2, 2-butyloctanol is readily biodegradable and unlikely to persist in the environment. Therefore, the requirement for adsoprtion/desorption information is waived.
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.
