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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1993

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 405 (Acute Eye Irritation / Corrosion)
GLP compliance:
yes

Test material

Constituent 1
Test material form:
solid: crystalline

Test animals / tissue source

Species:
rabbit
Strain:
New Zealand White
Details on test animals or tissues and environmental conditions:
TEST ANIMALS
- Source: Conventional Animal Breeding Unit
- Age at study initiation: Young adults
- Weight at study initiation: 3649-3939g
- Housing: aluminium sheet cages (65.2 x 68.9 x 45.7 cm)
- Diet (e.g. ad libitum):ad libitum
- Water (e.g. ad libitum):ad libitum
- Acclimation period:6 days

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 15-19°C
- Humidity (%): 30-70
- Air changes (per hr): 25-30
- Photoperiod (hrs dark / hrs light):12/12

Test system

Vehicle:
unchanged (no vehicle)
Controls:
not required
Amount / concentration applied:
Approximately 100mg per eye
Duration of treatment / exposure:
Not applicable
Observation period (in vivo):
72 hours
Number of animals or in vitro replicates:
3 females
Details on study design:
REMOVAL OF TEST SUBSTANCE:
Test substance was not removed

SCORING SYSTEM:
Draize 1959, Appendix C

TOOL USED TO ASSESS SCORE: fluorescein

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
cornea opacity score
Basis:
animal #1
Time point:
other: 24/48/72 hours
Score:
0
Max. score:
0
Reversibility:
other: Not applicable
Irritation parameter:
cornea opacity score
Basis:
animal #2
Time point:
other: 24/48/72 hours
Score:
0
Max. score:
0
Reversibility:
other: Not applicable
Irritation parameter:
cornea opacity score
Basis:
animal #3
Time point:
other: 24/48/72 hours
Score:
0
Max. score:
0
Reversibility:
other: Not applicable
Irritation parameter:
iris score
Basis:
animal #1
Time point:
other: 24/48/72 hours
Score:
0
Max. score:
0
Reversibility:
other: Not applicable
Irritation parameter:
iris score
Basis:
animal #2
Time point:
other: 24/48/72 hours
Score:
0
Max. score:
0
Reversibility:
other: Not applicable
Irritation parameter:
iris score
Basis:
animal #3
Time point:
other: 24/48/72 hours
Score:
0
Max. score:
0
Reversibility:
other: Not applicable
Irritation parameter:
conjunctivae score
Basis:
animal #1
Time point:
other: 24/48/72 hours
Score:
0
Max. score:
1
Reversibility:
fully reversible within: 24 hours
Irritation parameter:
conjunctivae score
Basis:
animal #2
Time point:
other: 24/48/72 hours
Score:
0
Max. score:
1
Reversibility:
fully reversible within: 24 hours
Irritation parameter:
conjunctivae score
Basis:
animal #3
Time point:
other: 24/48/72 hours
Score:
0
Max. score:
1
Reversibility:
fully reversible within: 24 hours
Irritation parameter:
chemosis score
Basis:
animal #1
Time point:
other: 24/48/72 hours
Score:
0
Max. score:
0
Reversibility:
other: Not applicable
Irritation parameter:
chemosis score
Basis:
animal #2
Time point:
other: 24/48/72 hours
Score:
0
Max. score:
0
Reversibility:
other: Not applicable
Irritation parameter:
chemosis score
Basis:
animal #3
Time point:
other: 24/48/72 hours
Score:
0
Max. score:
1
Reversibility:
fully reversible within: 24 hours
Irritant / corrosive response data:
There were no corneal or iridial effects. Conjunctival effects were only observed approximately 1 hour after application and consisted of slight redness in all 3 animals, slight chemosis in 1 animal, a slight discharge in 1 animal and severe discharge in 1 animal. Additional observations were confined to slight erythema on the upper and/or lower eyelid of 2 animals approximately 1 hour after application and a dried secretion on the periorbital skin of 2 animals 1 day after application. All signs of irritation had completely recovered by 24 hours.
Other effects:
Application into the eye caused a slight to moderate initial pain reaction (class 2-3 on a scale of 0-5).

Applicant's summary and conclusion

Interpretation of results:
slightly irritating
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
HMBDA was a slight irritant to the rabbit eye