Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
(Q)SAR
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model and falling into its applicability domain, with limited documentation / justification
Justification for type of information:
The water solubility is < 0.01mg/l and in common with higher olefins, it is not considered possible to dissolve a meaningful level of the substance in water for ecotoxicity testing.
Models such as ECOSAR are widely used to predict toxicity to aquatic organisms
In view of final use in cosmetics, animal testing needs to be avoided.

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
2021
Report date:
2021

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Performed using ECOSAR model
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Isoalkanes, C17 -C22 linear and branched
EC Number:
954-736-0
Molecular formula:
C17H36 x C22H46
IUPAC Name:
Isoalkanes, C17 -C22 linear and branched
Test material form:
liquid
Specific details on test material used for the study:
Both the C17 linear and C22 branched components were assessed.
both have estimated water solublity below 0.01mg/l

Test organisms

Test organisms (species):
not specified

Study design

Test type:
not specified
Water media type:
freshwater

Results and discussion

Effect concentrations
Duration:
96 h
Dose descriptor:
LC0
Effect conc.:
> 100 mg/L
Nominal / measured:
nominal
Conc. based on:
other: WAF
Remarks on result:
not determinable
Details on results:
In common with the class of higher olefins, there is no toxicity within the limits of solublity
WAF estimates suggest no toxicity at over 100 mg/l loading.

Any other information on results incl. tables

Sublethal observations / clinical signs:

The results found for this substance using EPISuite are consistent with expectations. For completeness, both the C17 linear and C22 branched components were assessed, but as these effectively gave the same results, only the results for C17 linear are reproduced below. Both components have estimated water solubility below 0.01mg/l, but the C17 linear was marginally higher and is considered most appropriate for modelling

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
In common with the class of higher olefins, there is no toxicity within the limits of solublity
WAF estimates suggest no toxicity at over 100 mg/l loading.