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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 271-807-5 | CAS number: 68608-88-8 This substance is identified by SDA Substance Name: C11-C13 branched alkyl benzene sulfonic acid and SDA Reporting Number: 25-096-00.
Long-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
The lowest NOEC value found for BABS Acid was 0.23 mg/L based on survival of eggs exposed from eyed stage, survival of eggs exposed from fertilization, survival of sac fry, and overall survival from fertilization to swim-up.
Key value for chemical safety assessment
Fresh water fish
Fresh water fish
- Effect concentration:
- 0.23 mg/L
Additional information
Fertilized eggs of Salmo gairdneri were exposed to concentrations of 0.03, 0.23, 0.35, 0.63, 0.95 and 1.9 mg/L (mean measured), for 72 days.The responses recorded included the survival of eggs, time to eyed egg stage, time to hatch, survival and final weight of sac-fry (eleutheroembryos), time and extent of swim-up (external feeding).
Based on the data for linear and branched alkylbenzene sulfonates, linear structures are more toxic than branched structures. Therefore, data on linear materials, e.g., the chronic aquatic studies using LAS, are considered to be a worst case scenario.
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.
