Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.

Diss Factsheets

Ecotoxicological information

Short-term toxicity to aquatic invertebrates

Currently viewing:

Administrative data

Link to relevant study record(s)

short-term toxicity to aquatic invertebrates
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
Reason / purpose for cross-reference:
reference to other study
no guideline followed
Principles of method if other than guideline:
Semi-static 72 h exposure tests where mussels were exposed to test solutions of n-octylbenzene (reference substance) and C12-14 branched alkylbenzenes.
Test organisms (species):
other aquatic mollusc: Mytilus edulis
Test type:
Water media type:
Total exposure duration:
72 h
Test temperature:
72 h
Dose descriptor:
other: EC20
Effect conc.:
0.007 mg/L
Conc. based on:
test mat. (total fraction)
Basis for effect:
other: reduction in feeding rate
Validity criteria fulfilled:
not applicable
The study allowed the authors to set an EC20 (72h): 0.007 mg/L that proved that the tested substance is toxic to mussels.

Description of key information

The result of one study in mussels (publication) has determined a EC20 (72h) of 0.007 mg/L, showing that BAB is toxic to this specie.

Other studies in similar subtances showed that there was no toxicity to daphnia for LAB (LC50 > water solubility in all assays) according to ECB (1997) and OECD (2002) dossiers, when excluding tests using a carrier solvent. Testing with use of solvents/dispersants is not environmentally relevant.

EPIsuite’s ECOSAR indicates that for neutral organics, if the log Kow is greater than 5.0, no acute effects in daphnia and mysid are predicted at saturation (due to the low water solubility). This is the case for BAB and all its components.

Key value for chemical safety assessment

Marine water invertebrates

Marine water invertebrates
Effect concentration:
0.007 mg/L

Additional information