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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Referred in a recognized source of peer reviewed scientific data on chemicals.

Data source

Reference
Reference Type:
publication
Title:
TOXICITY STUDIES of ETHYLBENZENE (CAS No. 100-41-4) IN F344/N RATS AND B6C3F1 MICE (INHALATION STUDIES).
Author:
NTP
Year:
1992
Bibliographic source:
NATIONAL TOXICOLOGY PROGRAM March 1992 NTP TOX 10 NIH Publication No. 92-3129 U.S. DEPARTMENT OF HEALTH AND HUMAN SERVICES Public Health Service, National Institutes of Health.

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 474 (Mammalian Erythrocyte Micronucleus Test)
GLP compliance:
not specified
Type of assay:
micronucleus assay

Test material

Constituent 1
Chemical structure
Reference substance name:
Ethylbenzene
EC Number:
202-849-4
EC Name:
Ethylbenzene
Cas Number:
100-41-4
Molecular formula:
C8H10
IUPAC Name:
ethylbenzene

Test animals

Species:
mouse
Strain:
CB6F1
Sex:
male/female

Administration / exposure

Route of administration:
inhalation: vapour
Duration of treatment / exposure:
13-Week

Results and discussion

Any other information on results incl. tables

Study observed:No induction of micronuclei in peripheral blood erythrocytes of male and female mice.

Applicant's summary and conclusion

Conclusions:
Ethylbenzene did not induce micronuclei in peripheral blood erythrocytes of male and female mice at the test conditions.