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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicological information

Genetic toxicity: in vitro

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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
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study submitted in the ELINCS notification dossier.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1990

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method B.13/14 (Mutagenicity - Reverse Mutation Test Using Bacteria)
GLP compliance:
yes
Type of assay:
bacterial reverse mutation assay

Test material

Constituent 1
Chemical structure
Reference substance name:
2-(phenylmethoxy)naphthalene
EC Number:
405-490-3
EC Name:
2-(phenylmethoxy)naphthalene
Cas Number:
613-62-7
Molecular formula:
C17H14O
IUPAC Name:
2-(benzyloxy)naphthalene

Method

Species / strainopen allclose all
Species / strain / cell type:
S. typhimurium TA 1535, TA 1537, TA 98 and TA 100
Species / strain / cell type:
S. typhimurium TA 1538
Metabolic activation:
with and without
Metabolic activation system:
rat S9 mix
Test concentrations with justification for top dose:
0-25-74-222-667-2000 µg/plate with and without S9
Vehicle / solvent:
DMSO

Results and discussion

Test resultsopen allclose all
Species / strain:
S. typhimurium TA 1535, TA 1537, TA 98 and TA 100
Metabolic activation:
with and without
Genotoxicity:
negative
Remarks:
precipitation: 222 µg/plate
Cytotoxicity / choice of top concentrations:
cytotoxicity
Remarks:
at 1000 µg/plate
Vehicle controls validity:
not specified
Untreated negative controls validity:
not specified
Positive controls validity:
not specified
Species / strain:
S. typhimurium TA 1538
Metabolic activation:
with and without
Genotoxicity:
negative
Remarks:
precipitation: 222 µg/plate
Cytotoxicity / choice of top concentrations:
cytotoxicity
Remarks:
at 1000 µg/plate
Vehicle controls validity:
not specified
Untreated negative controls validity:
not specified
Positive controls validity:
not specified

Applicant's summary and conclusion

Conclusions:
Interpretation of results (migrated information):
negative without metabolic activation
negative with metabolic activation

The substance was not mutagenic in the conditions of this test.
Executive summary:

A gene mutation study has been perfomed with the substance in Salmonella typhimurium TA98, TA100, TA 1535, TA1537 and TA1538 according to the guideline B13/14.

The concentrations applied were 25; 74; 222; 667 and 1000 µg/plate with and without metabolic activation from rat.

The results are negative with and without metabolic activation.