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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Non-GLP non-guideline, available as unpublished report, minor restrictions in design and/or reporting but otherwise adequate for assessment.

Data source

Referenceopen allclose all

Reference Type:
study report
Title:
Unnamed
Year:
1970
Report date:
1970
Reference Type:
other: English translation (summary)
Title:
Unnamed
Year:
2005
Report date:
2005

Materials and methods

Principles of method if other than guideline:
According to BASF-internal standard. The eye irritating potential of the test substance was examined in 2 rabbits. The animals were exposed to about 0.05 mL of the test substance. Effects were scored according to the method of Draize. Observations were made after 1, 24 hour and 8 days.
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Butyl chloroformate
EC Number:
209-750-5
EC Name:
Butyl chloroformate
Cas Number:
592-34-7
Molecular formula:
C5H9ClO2
IUPAC Name:
butyl carbonochloridate
Details on test material:
- Name of the test substance used in the study report: n-Butylchlorkohlensaeureester, Chloroformic acid butyl ester

Test animals / tissue source

Species:
rabbit
Strain:
Vienna White
Details on test animals or tissues and environmental conditions:
- Weight at study initiation:Animal #1: 2.7 kg, animal #2: 2.48 kg

Test system

Vehicle:
unchanged (no vehicle)
Controls:
other: NaCl treated eye of the same animal
Amount / concentration applied:
0.05 mL
Duration of treatment / exposure:
24 h
Observation period (in vivo):
8 d
Number of animals or in vitro replicates:
2
Details on study design:
The test substance was not washed off.

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
chemosis score
Basis:
animal: #1 and #2
Time point:
other: 24 h
Score:
2
Max. score:
3
Reversibility:
other: after 8 days staphyloma, injected vessels
Irritation parameter:
cornea opacity score
Basis:
animal: #1 and #2
Time point:
other: 24 h
Score:
2
Max. score:
3
Reversibility:
not fully reversible within: 8 days
Irritant / corrosive response data:
After 1 hour, marked redness and corneal opacity was observed in both animals. Marked chemosis in animal #1 and severe chemosis in animal #2 was noted.
After 24 hours, marked chemosis and corneal opacity was observed in both animals. Hemorrhages were also observed in both animals. In addition iritis was present in both animals
After 8 days: Slight redness and slight to marked corneal opacity present in both animals. In addition, staphyloma and ingrowing vessels were observed in both animals.

Applicant's summary and conclusion

Interpretation of results:
corrosive
Remarks:
Migrated information