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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Study period:
From 17 to 24 June 1980
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Study conducted in accordance with relevant guidelines. Not conducted under GLP conditions..

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1980
Report date:
1980

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 405 (Acute Eye Irritation / Corrosion)
Deviations:
no
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
4,4'-methylene bis(dibutyldithiocarbamate)
EC Number:
233-593-1
EC Name:
4,4'-methylene bis(dibutyldithiocarbamate)
Cas Number:
10254-57-6
Molecular formula:
C19H38N2S4
IUPAC Name:
N,N-dibutyl({[(dibutylcarbamothioyl)sulfanyl]methyl}sulfanyl)carbothioamide
Details on test material:
Batch No.: not specified
Purity: not specified

Test animals / tissue source

Species:
rabbit
Strain:
not specified
Details on test animals or tissues and environmental conditions:
TEST ANIMALS
- Age at study initiation: young adult
- Housing: The animals were housed and maintained in compliance with the Animal Welfare Act 9 CFR Part 3.

No additional data

Test system

Vehicle:
unchanged (no vehicle)
Controls:
not required
Amount / concentration applied:
TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 0.1 mL

No additional data
Duration of treatment / exposure:
7 days
Observation period (in vivo):
7 days
Number of animals or in vitro replicates:
6
Details on study design:
REMOVAL OF TEST SUBSTANCE
- Washing (if done): The test material was not washed from the eyes.

SCORING SYSTEM: Draize Scale of Scoring Ocular Lesions.

No additional data

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
cornea opacity score
Basis:
mean
Time point:
other: Mean of 24, 48 and 72 hours
Score:
0
Max. score:
0
Reversibility:
other: No effects were observed during 7 day observation period.
Irritation parameter:
iris score
Basis:
mean
Time point:
other: Mean of 24, 48 and 72 hours
Score:
0
Max. score:
0
Reversibility:
other: No effects were observed during 7 day observation period.
Irritation parameter:
conjunctivae score
Basis:
mean
Time point:
other: Mean of 24, 48 and 72 hours
Score:
0
Max. score:
0
Reversibility:
other: No effects were observed during 7 day observation period.
Irritation parameter:
chemosis score
Basis:
mean
Time point:
other: Mean of 24, 48 and 72 hours
Score:
0
Max. score:
0
Reversibility:
other: No effects were observed during 7 day observation period.
Irritant / corrosive response data:
No information provided
Other effects:
No information provided

Any other information on results incl. tables

Individual Daily Scores

Rabbit number

Tissue

Item

Readings

1 day

2 day

3 day

5 day

7 day

1

Cornea

Opacity

Area

0

0

0

0

0

0

0

0

0

0

Iris

Value

0

0

0

0

0

Conjunctivae

Redness

Chemosis

Discharge

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

2

Cornea

Opacity

Area

0

0

0

0

0

0

0

0

0

0

Iris

Value

0

0

0

0

0

Conjunctivae

Redness

Chemosis

Discharge

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

3

Cornea

Opacity

Area

0

0

0

0

0

0

0

0

0

0

Iris

Value

0

0

0

0

0

Conjunctivae

Redness

Chemosis

Discharge

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

4

Cornea

Opacity

Area

0

0

0

0

0

0

0

0

0

0

Iris

Value

0

0

0

0

0

Conjunctivae

Redness

Chemosis

Discharge

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

5

Cornea

Opacity

Area

0

0

0

0

0

0

0

0

0

0

Iris

Value

0

0

0

0

0

Conjunctivae

Redness

Chemosis

Discharge

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

6

Cornea

Opacity

Area

0

0

0

0

0

0

0

0

0

0

Iris

Value

0

0

0

0

0

Conjunctivae

Redness

Chemosis

Discharge

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Applicant's summary and conclusion

Interpretation of results:
not irritating
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
Methylenebis (dibutyldithiocarbamate) is not irritating to the rabbit eyes in this test.