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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
short-term toxicity to fish
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Data provided by ECHA - information from migrated NONS file as per inquiry 06-0000021296-70-0000.

Data source

Reference
Reference Type:
other: body responsible for the test
Title:
Unnamed
Year:
1988

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: Annex V, C1
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
4,6-bis(octylthiomethyl)-o-cresol
EC Number:
402-860-6
EC Name:
4,6-bis(octylthiomethyl)-o-cresol
Cas Number:
110553-27-0
Molecular formula:
C25H44OS2
IUPAC Name:
4,6-bis(octylthiomethyl)-o-cresol
Details on test material:
Identity and concentration of auxiliary solvent for dispersal: 5 g of the substance were
dissolved In and made up to 50 ml
with DMF (4 mgtl Alkylphenol-polyglycolether were added
directly to the water in the tank prior to the addition of
the stock solution)

Test organisms

Test organisms (species):
other: Zebra Fish (Brachydanlo rerio)

Study design

Test type:
semi-static

Test conditions

Hardness:
176 mg CaC03/L
Test temperature:
no data
pH:
no data
Dissolved oxygen:
no data
Salinity:
no data
Nominal and measured concentrations:
no data
Details on test conditions:
no data
Reference substance (positive control):
not specified

Results and discussion

Effect concentrationsopen allclose all
Duration:
24 h
Dose descriptor:
LC50
Effect conc.:
> 100 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality (fish)
Duration:
48 h
Dose descriptor:
LC50
Effect conc.:
> 100 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality (fish)
Duration:
72 h
Dose descriptor:
LC50
Effect conc.:
> 100 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality (fish)
Duration:
96 h
Dose descriptor:
LC50
Effect conc.:
> 100 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality (fish)
Duration:
96 h
Dose descriptor:
LC100
Effect conc.:
> 100 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality (fish)
Duration:
96 h
Dose descriptor:
NOEC
Effect conc.:
> 100 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality (fish)
Details on results:
The values are based on the nominal concentrations.
Results with reference substance (positive control):
no data
Reported statistics and error estimates:
no data

Any other information on results incl. tables

Sublethal observations / clinical signs:

no data

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
The NOEC of the test substance in the 96-h test on fish was > 100 mg/L. The LC 50 was > than 100 mg/l (nominal concentrations). The LC50 value is above the detection limit of the substance.