Registration Dossier

Diss Factsheets

Administrative data

Endpoint:
sub-chronic toxicity: oral
Type of information:
experimental study planned
Study period:
Will be completed in the timescale as indicated in the ECHA decision letter.
Justification for type of information:
TESTING PROPOSAL ON VERTEBRATE ANIMALS
[Please provide information for all of the points below. The information should be specific to the endpoint for which testing is proposed. Note that for testing proposals addressing testing on vertebrate animals under the REACH Regulation this document will be published on the ECHA website along with the third party consultation on the testing proposal(s).]

NON-CONFIDENTIAL NAME OF SUBSTANCE:
- Name of the substance on which testing is proposed to be carried out : Hydrocarbons, C7-C9, isoalkanes (EC# 921-728-3)
- Name of the substance for which the testing proposal will be used [if different from tested substance] : Not different

CONSIDERATIONS THAT THE GENERAL ADAPTATION POSSIBILITIES OF ANNEX XI OF THE REACH REGULATION ARE NOT ADEQUATE TO GENERATE THE NECESSARY INFORMATION [please address all points below]:
- Available GLP studies : There are no OECD Guideline 408 studies available on this substance to evaluate the sub-chronic toxicity endpoint. These data only exist for structural analogues.
- Available non-GLP studies : There are no ‘non-GLP’ studies available for this substance to evaluate the sub-chronic toxicity endpoint. These data only exist for for structural analogues.
- Historical human data: No human data exist for this substance to evaluate sub-chronic toxicity hazard.
- (Q)SAR : There are no recognised (Q)SAR methods available for reliable prediction of sub-chronic toxicity.
- In vitro methods : There are no in vitro methods currently accepted by Regulatory Authorities for the reliable prediction of sub-chronic toxicity.
- Weight of evidence : Currently there are insufficient data available to develop a robust weight of evidence approach for the sub-chronic toxicity.
- Grouping and read-across : This test proposal maybe used to help develop a category approach for a wider range of hydrocarbons.
- Substance-tailored exposure driven testing [if applicable] : Insufficient data available
- Approaches in addition to above [if applicable]: None applicable
- Other reasons [if applicable]: None identified

According to the adaption principles of Annex XI of the REACH Regulation, there are no existing sub-chronic toxicity data (mammalian and human) for this substance, or for similar compositions, which could subsequently be used for read-across. Consequently, a weight of evidence approach is not sufficient to address this endpoint.

Both in-vitro and in-silico approaches are not considered to be appropriate, as there are no suitable methods which are considered to be valid and reliable to address the requirements for the Sub-Chronic Toxicity (90-Days) toxicity endpoint.

CONSIDERATIONS THAT THE SPECIFIC ADAPTATION POSSIBILITIES OF ANNEXES VI TO X (AND COLUMN 2 THEREOF) OF THE REACH REGULATION ARE NOT ADEQUATE TO GENERATE THE NECESSARY INFORMATION:
- There are no short-term toxicity studies (28-days) on this substance
- There are no chronic toxicity studies on this substance

FURTHER INFORMATION ON TESTING PROPOSAL IN ADDITION TO INFORMATION PROVIDED IN THE MATERIALS AND METHODS SECTION:
- Details on study design / methodology proposed [if relevant]: See 'Materials and Methods' Section for further information.

Data source

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 408 (Repeated Dose 90-Day Oral Toxicity Study in Rodents)
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
Hydrocarbons, C7-C9, isoalkanes
EC Number:
921-728-3
Cas Number:
64741-66-8
Molecular formula:
None available - not a single isomer - see remarks
IUPAC Name:
Hydrocarbons, C7-C9, isoalkanes
Test material form:
liquid
Details on test material:
Name of substance: Hydrocarbons, C7-C9, isoalkanes
EC#: 921-728-3

Test animals

Species:
rat
Sex:
male/female

Administration / exposure

Route of administration:
oral: unspecified

Results and discussion

Applicant's summary and conclusion