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Toxicological information

Eye irritation

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Administrative data

Endpoint:
eye irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1987-04-13 to 1987-04-21
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Guideline study, no GLP study, only basic data given

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1987
Report date:
1987

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 405 (Acute Eye Irritation / Corrosion)
Version / remarks:
1981
Deviations:
no
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
2-(2-ethoxyethoxy)-2-methylpropane
EC Number:
257-196-8
EC Name:
2-(2-ethoxyethoxy)-2-methylpropane
Cas Number:
51422-54-9
Molecular formula:
C8H18O2
IUPAC Name:
2-(2-ethoxyethoxy)-2-methylpropane

Test animals / tissue source

Species:
rabbit
Strain:
other: Chbb-SPF
Details on test animals or tissues and environmental conditions:
TEST ANIMALS
- Source: Fa. Dr. Karl Thomae GmbH, Biberach
- Weight at study initiation: 2.0-2.1 kg
- Housing: Stainless steel cages, one animal per cage
- Diet: K4 Alleindiät für Kaninchen, Ssniff Spezialfutter GmbH, 4770 Soest, ad libitum
- Water: Tap water, ad libitum
- Acclimation period: 14 days

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 20 °C +/- 1 °C
- Humidity (%): 60 % +/- 5 %
- Air changes: 15 times / hour
- Photoperiod (hrs dark / hrs light): 12/12

Test system

Vehicle:
unchanged (no vehicle)
Controls:
no
Amount / concentration applied:
TEST MATERIAL
- Amount(s) applied: 0.1 cm3

Duration of treatment / exposure:
72 hours
Observation period (in vivo):
1, 24, 48 and 72 hours and 4, 8 days after application
Number of animals or in vitro replicates:
3
Details on study design:
REMOVAL OF TEST SUBSTANCE
- Washing: NaCl solution
- Time after start of exposure: 72 h

SCORING SYSTEM: Draize (Appraisals of the Safety of Chemicals in Foods, Drugs and Cosmetics, FDA, Austin 1, Texas 1959, page 51)

TOOL USED TO ASSESS SCORE: Na-Fluorescein

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
cornea opacity score
Basis:
mean
Remarks:
all animals
Time point:
other: 24, 48, 72 h
Score:
0
Max. score:
4
Irritation parameter:
iris score
Basis:
mean
Remarks:
all animals
Time point:
other: 24, 48, 72 h
Score:
0
Max. score:
2
Irritation parameter:
conjunctivae score
Basis:
mean
Remarks:
animal 1
Time point:
other: 24, 48, 72 h
Score:
0
Max. score:
3
Irritation parameter:
conjunctivae score
Basis:
mean
Remarks:
animal 2
Time point:
other: 24, 48, 72 h
Score:
1
Max. score:
3
Reversibility:
fully reversible within: 72 h
Irritation parameter:
conjunctivae score
Basis:
mean
Remarks:
animal 3
Time point:
other: 24, 48, 72 h
Score:
1
Max. score:
3
Reversibility:
fully reversible within: 72 h
Irritation parameter:
chemosis score
Basis:
mean
Remarks:
animal 1
Time point:
other: 24, 48, 72 h
Score:
0
Max. score:
4
Irritation parameter:
chemosis score
Basis:
mean
Remarks:
animal 2
Time point:
other: 24, 48, 72 h
Score:
0.33
Max. score:
4
Reversibility:
fully reversible within: 48 h
Irritation parameter:
chemosis score
Basis:
mean
Remarks:
animal 3
Time point:
other: 24, 48, 72 h
Score:
0.33
Max. score:
4
Reversibility:
fully reversible within: 48 h
Irritant / corrosive response data:
The test item showed no eye irritating effects.

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Remarks:
Migrated information Criteria used for interpretation of results: EU