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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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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:
guideline study

Data source

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

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EU Method B.5 (Acute Toxicity: Eye Irritation / Corrosion)
Qualifier:
according to guideline
Guideline:
OECD Guideline 405 (Acute Eye Irritation / Corrosion)
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
α,2,4-trichlorotoluene
EC Number:
202-381-0
EC Name:
α,2,4-trichlorotoluene
Cas Number:
94-99-5
Molecular formula:
C7H5Cl3
IUPAC Name:
2,4-dichloro-1-(chloromethyl)benzene
Test material form:
liquid
Specific details on test material used for the study:
purity > 99 %

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: ca. 3 - 5 months
- Weight at study initiation: 2.7 - 3.5 kg
- Housing: individually
- Diet: Altromin 2123 ad libitum
- Water: ad libitum

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

Test system

Vehicle:
unchanged (no vehicle)
Controls:
yes
Amount / concentration applied:
0.1 mL
Duration of treatment / exposure:
24 h
Observation period (in vivo):
1, 24, 72 hours and 7 days after application
Number of animals or in vitro replicates:
3
Details on study design:
Eyes were rinsed with physiological saline 24 hours after instillation.

Eyes were inspected for integrity before the testing. A solution of fluorescein, sodium salt (0.01%) was dropped into the eye. Then the cornea was investigated using UV radiation 24 hours before application.

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
cornea opacity score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0.3
Max. score:
4
Reversibility:
fully reversible within: 7 days
Irritation parameter:
cornea opacity score
Basis:
animal #2
Time point:
24/48/72 h
Score:
0.3
Max. score:
4
Reversibility:
fully reversible within: 7 days
Irritation parameter:
cornea opacity score
Basis:
animal #3
Time point:
24/48/72 h
Score:
0.3
Max. score:
4
Reversibility:
fully reversible within: 7 days
Irritation parameter:
iris score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0
Max. score:
2
Reversibility:
fully reversible within: 7 days
Irritation parameter:
iris score
Basis:
animal #2
Time point:
24/48/72 h
Score:
0.3
Max. score:
2
Reversibility:
fully reversible within: 7 days
Irritation parameter:
iris score
Basis:
animal #3
Time point:
24/48/72 h
Score:
0.3
Max. score:
4
Reversibility:
fully reversible within: 7 days
Irritation parameter:
conjunctivae score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0.7
Max. score:
3
Reversibility:
fully reversible within: 7 days
Irritation parameter:
conjunctivae score
Basis:
animal #2
Time point:
24/48/72 h
Score:
2
Max. score:
3
Reversibility:
fully reversible within: 7 days
Irritation parameter:
conjunctivae score
Basis:
animal #3
Time point:
24/48/72 h
Score:
1
Max. score:
3
Reversibility:
fully reversible within: 7 days
Irritation parameter:
chemosis score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0.3
Max. score:
4
Reversibility:
fully reversible within: 7 days
Irritation parameter:
chemosis score
Basis:
animal #2
Time point:
24/48/72 h
Score:
1.3
Max. score:
4
Reversibility:
fully reversible within: 7 days
Irritation parameter:
chemosis score
Basis:
animal #3
Time point:
24/48/72 h
Score:
0.3
Max. score:
4
Reversibility:
fully reversible within: 7 days

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met