Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
skin irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1979
Report date:
1979

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
m-tolyl isocyanate
EC Number:
210-676-0
EC Name:
m-tolyl isocyanate
Cas Number:
621-29-4
Molecular formula:
C8H7NO
IUPAC Name:
1-isocyanato-3-methylbenzene

Test animals

Species:
rabbit
Strain:
New Zealand White

Test system

Type of coverage:
semiocclusive
Preparation of test site:
shaved
Vehicle:
other: paraffinic oil
Controls:
not specified
Amount / concentration applied:
1 ml of 10% solution in paraffinic oil
Duration of treatment / exposure:
1 hour
Observation period:
24 hours
48 hours
14 days

Results and discussion

In vivo

Results
Irritation parameter:
overall irritation score
Basis:
mean
Time point:
other: 1, 24, 48 hours, 7 days, 14 days
Score:
>= 6 - <= 7
Reversibility:
not reversible
Irritant / corrosive response data:
24 hours - all exposed skin white, tumorous, dried
48 hours - tumidness reduced, skin dried and congested
7 days - skin slough, congestion
14- days - blisters

Applicant's summary and conclusion

Interpretation of results:
corrosive
Remarks:
Migrated information Criteria used for interpretation of results: EU