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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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, other
Remarks:
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, guideline study, adequate for assessment

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1986

Materials and methods

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

Test material

Constituent 1
Reference substance name:
Reference substance 001
Cas Number:
11071-47-9
Molecular formula:
C8H16
Details on test material:
Di-n-butene. According to the report's owners the substance di-n-butene can be classified as CAS 11071-47-9 (Isooctene).
Components: 18 % n-Octene, 58 % Methylheptene and 24 % Dimethylhexene

Test animals / tissue source

Species:
rabbit
Strain:
other: small, white Russian (Chbb-SPF)
Details on test animals or tissues and environmental conditions:
TEST ANIMALS
- Weight at study initiation: 2.2
- Housing: stainless steel cages
- Diet (e.g. ad libitum): K4 Alleindiat for rabbits
- Water (e.g. ad libitum): tapwater
- Acclimation period: 14 days


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

Test system

Vehicle:
unchanged (no vehicle)
Controls:
no
Amount / concentration applied:
TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 0.1 cm3


Duration of treatment / exposure:
72 hours
Observation period (in vivo):
1, 24, 48 and 72 hours after application and also at 6 days after application
Number of animals or in vitro replicates:
3
Details on study design:
REMOVAL OF TEST SUBSTANCE
- Washing (if done): saline solution
- Time after start of exposure: 72 hours


SCORING SYSTEM: Draize


TOOL USED TO ASSESS SCORE: hand-slit lamp and fluorescein

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
cornea opacity score
Basis:
mean
Time point:
other: 72 hours
Score:
0
Max. score:
0
Reversibility:
other: not relevant
Remarks on result:
other: score also 0 at 6 days
Irritation parameter:
iris score
Basis:
mean
Time point:
other: 72 hours
Score:
0
Max. score:
0
Reversibility:
other: not relevant
Remarks on result:
other: score also 0 at 6 days
Irritation parameter:
conjunctivae score
Remarks:
redness
Basis:
mean
Time point:
other: 72 hours
Score:
0
Max. score:
0
Reversibility:
other: not relevant
Remarks on result:
other: score also 0 at 6 days
Irritation parameter:
chemosis score
Basis:
mean
Time point:
other: 72 hours
Score:
0
Max. score:
0
Reversibility:
other: not relevant
Remarks on result:
other: score also 0 at 6 days

Applicant's summary and conclusion

Interpretation of results:
not irritating
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
Under the test conditions, di-n-butene was not irritating to rabbit eyes