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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Eye irritation

Currently viewing:

Administrative data

Endpoint:
eye irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Guideline conforme GLP Study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1985
Report date:
1985

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 405 (Acute Eye Irritation / Corrosion)
Deviations:
no
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
2-ethylhexanoic acid
EC Number:
205-743-6
EC Name:
2-ethylhexanoic acid
Cas Number:
149-57-5
Molecular formula:
C8H16O2
IUPAC Name:
2-ethylhexanoic acid
Details on test material:
- Name of test material (as cited in study report): 2-Ethylhexansäure (CAS 149-57-5)
- Physical state: clear liquid
- Analytical purity: 99 %
- Lot/batch No.: RM 13 2904

Test animals / tissue source

Species:
rabbit
Strain:
New Zealand White
Details on test animals or tissues and environmental conditions:
TEST ANIMALS
- Source: Hoechst AG Kastengrund
- Age at study initiation: 3 - 5 month
- Weight at study initiation: 3.0 - 3.6 kg
- Housing: single housing
- Diet (e.g. ad libitum): Altromin 2123 Haltungsdiät - Kaninchen; Altromin GmbH Lage/Lippe
- Water (e.g. ad libitum): Tab water


ENVIRONMENTAL CONDITIONS
- Temperature (°C): 20 +/- 3 °C
- Humidity (%): 50 +/- 20 %
- Photoperiod (hrs dark / hrs light): 12h/12h

Test system

Vehicle:
unchanged (no vehicle)
Controls:
not required
Amount / concentration applied:
100 µL
Duration of treatment / exposure:
24 h
Observation period (in vivo):
7 days
Number of animals or in vitro replicates:
3
Details on study design:
REMOVAL OF TEST SUBSTANCE
no

SCORING SYSTEM:
Draize

TOOL USED TO ASSESS SCORE:
fluorescein

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
cornea opacity score
Basis:
mean
Time point:
other: 24 - 72 h
Score:
0.44
Max. score:
4
Reversibility:
fully reversible within: 72 h
Irritation parameter:
iris score
Basis:
mean
Time point:
other: 24-72 h
Score:
0.56
Max. score:
2
Reversibility:
fully reversible within: 7 days
Irritation parameter:
conjunctivae score
Basis:
mean
Time point:
other: 24 -72 h
Score:
1.2
Max. score:
4
Reversibility:
fully reversible within: 7 days
Irritation parameter:
chemosis score
Basis:
mean
Time point:
other: 24-72 h
Score:
0.89
Max. score:
4
Reversibility:
fully reversible within: 7 days

Applicant's summary and conclusion

Interpretation of results:
not irritating
Remarks:
Migrated information