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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
short-term repeated dose toxicity: oral
Remarks:
other: 28 days dietary toxicity study
Type of information:
experimental study
Adequacy of study:
key study
Study period:
27th April to 13th May 2002
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2002
Report date:
2002

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 407 (Repeated Dose 28-Day Oral Toxicity Study in Rodents)
GLP compliance:
yes (incl. QA statement)
Remarks:
OECD principles of Good Laboratory Practice for the testing of chemicals (C(97)186/Final)
Limit test:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
(1R, 4R, 5S) 4-hydroxy-6,6-dimethyl-3-Oxabicyclo[3.1.0]hexan-2-one
EC Number:
619-753-7
Cas Number:
73611-02-6
Molecular formula:
C7H10O3
IUPAC Name:
(1R, 4R, 5S) 4-hydroxy-6,6-dimethyl-3-Oxabicyclo[3.1.0]hexan-2-one

Test animals

Species:
rat
Strain:
Wistar
Sex:
male/female

Administration / exposure

Route of administration:
oral: feed
Vehicle:
acetone
Duration of treatment / exposure:
Each test group received food specifically prepared for that group. The treatment was 7 days a week for 4 weeks. The high dose recovery group received normal rat food for two weeks following the 4 weeks of treatment period.
Doses / concentrations
Remarks:
Doses / Concentrations:
0, 500, 2000, 6000, 10000 ppm (m/f)
Basis:
nominal in diet
No. of animals per sex per dose:
6
Control animals:
yes, plain diet

Results and discussion

Effect levels

Dose descriptor:
NOAEL
Effect level:
500 ppm
Sex:
male/female
Basis for effect level:
other: see 'Remark'

Target system / organ toxicity

Critical effects observed:
not specified

Applicant's summary and conclusion