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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
in vivo mammalian somatic cell study: cytogenicity / erythrocyte micronucleus
Remarks:
Type of genotoxicity: chromosome aberration
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

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 474 (Mammalian Erythrocyte Micronucleus Test)
GLP compliance:
yes
Type of assay:
micronucleus 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

Test animals

Species:
mouse
Strain:
NMRI
Sex:
male/female

Administration / exposure

Route of administration:
intraperitoneal
Vehicle:
maize oil
Duration of treatment / exposure:
24 or 48 hours after treatment
Post exposure period:
24 or 48 hr for the highest dose. Only 24 h for the others.
Doses / concentrationsopen allclose all
Remarks:
Doses / Concentrations:
200 mg/kg
Basis:
no data
Remarks:
Doses / Concentrations:
670 mg/kg
Basis:
no data
Remarks:
Doses / Concentrations:
2000 mg/kg
Basis:
no data
No. of animals per sex per dose:
5

Results and discussion

Test results
Sex:
male/female
Genotoxicity:
negative
Toxicity:
yes
Remarks:
at 2000 mg/kg (reduced spontaneous activity, reversible within 24 h
Vehicle controls validity:
not specified
Negative controls validity:
not specified
Positive controls validity:
not specified
Additional information on results:
24h :
200 mg/kg PCE/NCE: 1000/644
670 mg/kg PCE/NCE: 1000/687
2000 mg/kg PCE/NCE: 1000/663

48 h:
2000 mg/kg PCE/NCE: 1000/643

Applicant's summary and conclusion

Conclusions:
Interpretation of results (migrated information): negative
The substance doesn't induce micronucleus in the mouse
Executive summary:

The micronucleus test has been performed in mouse (males and females) with the substance by ip injection of 200 to 2000 mg/kg. The micronucleus were determined at 24 or 48 h after treament for the highest tested dose and at 24 h only for 200 and 670 mg/kg. Sign of toxicity were observed at 2000 mg/kg.

In the conditions of this test, the substance didn't induce positive results.