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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicological information

Genetic toxicity: in vitro

Currently viewing:

Administrative data

Endpoint:
in vitro gene mutation study in bacteria
Remarks:
Type of genotoxicity: gene mutation
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2002
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2002
Report date:
2002

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 471 (Bacterial Reverse Mutation Assay)
GLP compliance:
yes
Type of assay:
bacterial reverse mutation assay

Test material

Constituent 1
Chemical structure
Reference substance name:
-
EC Number:
444-110-0
EC Name:
-
Cas Number:
16510-27-3
Molecular formula:
C11H14O
IUPAC Name:
1-(cyclopropylmethyl)-4-methoxybenzene
Details on test material:
Batch No LDP0200015
Purity 99.1%

Method

Species / strain
Species / strain / cell type:
S. typhimurium TA 1535, TA 1537, TA 98, TA 100 and TA 102
Metabolic activation:
with and without
Metabolic activation system:
S9 mix
Test concentrations with justification for top dose:
Experiment I : 10;33;100;333;1000; and 2500 microg/plate
Experiment II : 3;10;33;100;333 and 1000 microg/plate
Controlsopen allclose all
Untreated negative controls:
yes
Remarks:
Concurrent untreated and solvent controls were performed
Negative solvent / vehicle controls:
yes
Remarks:
Concurrent untreated and solvent controls were performed
True negative controls:
no
Positive controls:
yes
Positive control substance:
sodium azide
Remarks:
TA1535 and TA100 with a concentration of 10 microg/plate without metabolic activation
Untreated negative controls:
yes
Remarks:
Concurrent untreated and solvent controls were performed
Negative solvent / vehicle controls:
yes
Remarks:
Concurrent untreated and solvent controls were performed
True negative controls:
no
Positive controls:
yes
Positive control substance:
other: 4-nitro-o-phenylene-diamine
Remarks:
TA1537 and TA98 with a concentration of 10 microg/plate and 50 microg/plate respectively without metabolic activation
Untreated negative controls:
yes
Remarks:
Concurrent untreated and solvent controls were performed
Negative solvent / vehicle controls:
yes
Remarks:
Concurrent untreated and solvent controls were performed
True negative controls:
no
Positive controls:
yes
Positive control substance:
methylmethanesulfonate
Remarks:
TA102 with a concentration of 4 microg/plate without metabolic activation
Untreated negative controls:
yes
Remarks:
Concurrent untreated and solvent controls were performed
Negative solvent / vehicle controls:
yes
Remarks:
Concurrent untreated and solvent controls were performed
True negative controls:
no
Positive controls:
yes
Positive control substance:
other: 2-aminoanthracene
Remarks:
TA1535, TA1537, TA98, TA100 and TA102 with a concentration of 2.5 microg/plate with metabolic activation

Results and discussion

Test results
Species / strain:
S. typhimurium TA 1535, TA 1537, TA 98, TA 100 and TA 102
Metabolic activation:
with and without
Genotoxicity:
negative
Cytotoxicity / choice of top concentrations:
cytotoxicity
Remarks:
toxic effects, evident as a reduction in the number of revertants was observed at the higher concentration with and without metabolic activation in all strains used.
Vehicle controls validity:
valid
Untreated negative controls validity:
valid
Positive controls validity:
valid
Remarks on result:
other: all strains/cell types tested
Remarks:
Migrated from field 'Test system'.

Applicant's summary and conclusion

Conclusions:
Interpretation of results (migrated information):
negative

Therefore Cyclopropenyl Estragole is considered to be non-mutagenic in this Samonella Typhimurium reverse mutation assay.