Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: taken from EU RAR

Data source

Reference
Reference Type:
publication
Title:
Unnamed
Year:
2004

Materials and methods

Test guideline
Qualifier:
no guideline available
Principles of method if other than guideline:
n/a
GLP compliance:
not specified
Type of assay:
micronucleus assay

Test material

Constituent 1
Chemical structure
Reference substance name:
Dibutyl phthalate
EC Number:
201-557-4
EC Name:
Dibutyl phthalate
Cas Number:
84-74-2
Molecular formula:
C16H22O4
IUPAC Name:
dibutyl phthalate
Test material form:
not specified
Details on test material:
DBP was administered to mice in a diet (equal to 163-4278 mg/kg bw) for 13 weeks.

Test animals

Species:
mouse
Strain:
B6C3F1
Sex:
not specified

Administration / exposure

Route of administration:
oral: feed
Vehicle:
no data
Duration of treatment / exposure:
13 weeks
Frequency of treatment:
no data
Post exposure period:
no data
Doses / concentrations
Remarks:
Doses / Concentrations:
0, 0.125, 0.25, 0.5, 1.0, 2.0% in diet
Basis:
nominal in diet
No. of animals per sex per dose:
no data
Control animals:
yes

Examinations

Tissues and cell types examined:
peripheral blood samples
Details of tissue and slide preparation:
no data

Results and discussion

Test results
Sex:
not specified
Genotoxicity:
negative
Toxicity:
not specified
Vehicle controls validity:
not specified
Negative controls validity:
not specified
Positive controls validity:
not specified
Additional information on results:
No increased incidence of micronuclei was revealed.

Applicant's summary and conclusion