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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Skin irritation / corrosion

Currently viewing:

Administrative data

Endpoint:
skin irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1992
Report date:
1992

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EU Method B.4 (Acute Toxicity: Dermal Irritation / Corrosion)
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
Deviations:
no
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
A mixture of: cis-tetrahydro-2-isobutyl-4-methylpyran-4-ol; trans-tetrahydro-2-isobutyl-4-methylpyran-4-ol
EC Number:
405-040-6
EC Name:
A mixture of: cis-tetrahydro-2-isobutyl-4-methylpyran-4-ol; trans-tetrahydro-2-isobutyl-4-methylpyran-4-ol
Cas Number:
63500-71-0
Molecular formula:
C10 H20 O2
IUPAC Name:
4-methyl-2-(2-methylpropyl)oxan-4-ol
Details on test material:
- Analytical purity: >99%
- Lot/batch No.: S1943401
- Storage condition of test material: room temperature

Test animals

Species:
rabbit
Strain:
New Zealand White

Test system

Type of coverage:
semiocclusive
Preparation of test site:
shaved
Vehicle:
unchanged (no vehicle)
Controls:
no
Amount / concentration applied:
TEST MATERIAL
- Amount(s) applied: 0,5 ml
Duration of treatment / exposure:
4 hours
Observation period:
0,5; 24; 48; 72h
Additional observations on days 5 and 6
Number of animals:
3

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
erythema score
Basis:
animal #1
Time point:
other: 24+48+72h
Score:
0
Max. score:
4
Irritation parameter:
edema score
Basis:
animal #1
Time point:
other: 24+48+72h
Score:
0
Max. score:
4
Irritation parameter:
erythema score
Basis:
animal #2
Time point:
other: 24+48+72h
Score:
0.67
Max. score:
4
Reversibility:
fully reversible
Irritation parameter:
edema score
Basis:
animal #2
Time point:
other: 24+48+72h
Score:
0.67
Max. score:
4
Reversibility:
fully reversible
Irritation parameter:
erythema score
Basis:
animal #3
Time point:
other: 24+48+72h
Score:
1.67
Max. score:
4
Reversibility:
fully reversible
Irritation parameter:
edema score
Basis:
animal #3
Time point:
other: 24+48+72h
Score:
0.67
Max. score:
4
Reversibility:
fully reversible

Any other information on results incl. tables

 

time

animal 1

animal 2

animal 3

erythema

24 h

0

1

2

48 h

0

1

2

72 h

0

0

1

6 d

0

0

0

edema

24 h

0

1

1

48 h

0

1

1

72 h

0

0

0

6 d

0

0

0

Applicant's summary and conclusion

Interpretation of results:
not irritating
Remarks:
Migrated information Criteria used for interpretation of results: OECD GHS
Conclusions:
Single semi-occlusive application elicited variable skin irritation ranging from no response to transient well defined erythema and very slight oedema. All reactions had resolved by day 6.