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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 / bone marrow chromosome aberration
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2001
Report date:
2001

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 474 (Mammalian Erythrocyte Micronucleus Test)
Qualifier:
according to guideline
Guideline:
JAPAN: Guidelines for Screening Mutagenicity Testing Of Chemicals
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
4-(tert-butyl)-N-sec-butyl-2,6-dinitroaniline
EC Number:
251-607-4
EC Name:
4-(tert-butyl)-N-sec-butyl-2,6-dinitroaniline
Cas Number:
33629-47-9
Molecular formula:
C14H21N3O4
IUPAC Name:
N-sec-butyl-4-tert-butyl-2,6-dinitroaniline
impurity 1
Chemical structure
Reference substance name:
Xylene
EC Number:
215-535-7
EC Name:
Xylene
Cas Number:
1330-20-7
Molecular formula:
C8H10
IUPAC Name:
m-xylene

Test animals

Species:
mouse
Strain:
Swiss
Sex:
male/female

Administration / exposure

Route of administration:
oral: unspecified
Duration of treatment / exposure:
24h
Frequency of treatment:
2
Doses / concentrationsopen allclose all
Dose / conc.:
0 mg/kg bw/day (nominal)
Dose / conc.:
200 mg/kg bw/day (nominal)
Dose / conc.:
400 mg/kg bw/day (nominal)
Dose / conc.:
800 mg/kg bw/day (nominal)
No. of animals per sex per dose:
5
Control animals:
yes

Results and discussion

Test results
Key result
Sex:
male/female
Genotoxicity:
negative
Toxicity:
no effects

Applicant's summary and conclusion

Conclusions:
Under our experimental conditions, the test substance Butraline technique does not induce damage to the chromoses or the mitotic apparatus of mice bone marrow cells after twho oral administrations, at a 24-hour interval, at the dose levels of 200, 400 or 800 mg/kg/day.