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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Endpoint:
in vivo mammalian somatic cell study: cytogenicity / erythrocyte micronucleus
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Acceptable publication which meets basic scientific principles

Data source

Reference
Reference Type:
publication
Title:
Study of artificial flavouring substances for mutagenicity in the Salmonella/microsome, Basc and micronucleus tests
Author:
Wild D et al.
Year:
1983
Bibliographic source:
Food and Chemical Toxicology 21, 707– 719

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:
7-hydroxycitronellal
EC Number:
203-518-7
EC Name:
7-hydroxycitronellal
Cas Number:
107-75-5
Molecular formula:
C10H20O2
IUPAC Name:
7-hydroxy-3,7-dimethyloctanal
Details on test material:
- Supplier: ICN-K&K, Plainview, NY, USA
No further data given

Test animals

Species:
mouse
Strain:
NMRI
Sex:
male/female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Age at study initiation: 10 - 14 weeks

Administration / exposure

Route of administration:
intraperitoneal
Vehicle:
- Vehicle(s)/solvent(s) used: olive oil
Duration of treatment / exposure:
30 h
Frequency of treatment:
once
Post exposure period:
30 h
Doses / concentrations
Remarks:
Doses / Concentrations:
345, 603, 861 mg/kg bw
Basis:
nominal conc.
No. of animals per sex per dose:
4 animals per dose
Control animals:
yes, concurrent vehicle
Positive control(s):
no data

Examinations

Tissues and cell types examined:
polychromatic erythrocytes of bone marrow
Details of tissue and slide preparation:
The smears were stained according to the method of Schmid (Schmid W. 1976; Chemical Mutagens; edited by A . Hollaender; Vol4; p31; Plenum Press, New York )
Slides were scored as described by Wild (Wild D. 1980; Archs Toxicol.; 43; 249).
Statistics:
Statistical significance was determined according to the methods of Kastenbaum & Bowman (Kastenbaum M. 1970; Mutation Res. 9; 527)

Results and discussion

Test results
Sex:
female
Genotoxicity:
negative
Toxicity:
not specified
Vehicle controls validity:
valid
Negative controls validity:
not specified
Positive controls validity:
not specified

Any other information on results incl. tables

Results expressed as mean number of micronucleated polychromatic erythrocytes (PE) per 1000 PE:

345 mg/kg bw: 1.5 (4/4 animals survived)

603 mg/kg bw: 1.0 (4/4 animals survived)

861 mg/kg bw: 2.0 (4/4 animals survived)

vehicle control: 1.5 (4/4 animals survived)

mean of the vehicle controls for all substances tested: 1.85

A structurally and metabolically related substance (Hydroxycitronellol CAS. 107-74-4)

was tested under similar testing conditions:

516 mg/kg bw: 2.2 (4/4 animals survived)

860 mg/kg bw: 2.2 (4/4 animals survived)

1204 mg/kg bw: 2.6 (3/7 animals survived)

vehicle control: 2.0 (4/4 animals survived)

mean of the vehicle controls for all substances tested: 1.85

Applicant's summary and conclusion