Registration Dossier

Administrative data

Endpoint:
short-term toxicity to fish
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
OECD 203 guideline study incl. GLP.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2008
Report Date:
2008

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 203 (Fish, Acute Toxicity Test)
Deviations:
no
GLP compliance:
yes

Test material

Reference
Name:
Unnamed
Type:
Constituent
Specific details on test material used for the study:
The CAS number 67968-63-2 (EC 942-903-0) is the "pre-REACH" CAS number used for the registered substance. Upon request the name of the substance was changed to Reaction products of fatty acids, C18 (unsaturated) alkyl with sulfur trioxide, potassium salts (EC 701-179-4). However, both descriptors describt the same (identical) substance.

Sampling and analysis

Analytical monitoring:
no

Test organisms

Test organisms (species):
Pimephales promelas

Study design

Test type:
static
Water media type:
freshwater
Limit test:
no
Total exposure duration:
96 h

Test conditions

Reference substance (positive control):
no

Results and discussion

Effect concentrations
Duration:
96 h
Dose descriptor:
LC50
Effect conc.:
5.8 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality

Applicant's summary and conclusion

Validity criteria fulfilled:
not specified
Conclusions:
LC50 = 5.8 mg/l
Executive summary:

The acute toxicity of Octadecanoic acid, 9(or 10)-sulfo-, potassium salt (CAS-No. 67968 -63 -2) for fish has been tested in the OECD 203 test with fathead minnow. After 96 hour of exposure, a LC50 = 5.8 mg/l was obtained.