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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Acute Toxicity: dermal

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Administrative data

Endpoint:
acute toxicity: dermal
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: well documented and scientifically acceptable

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1975
Report date:
1975

Materials and methods

Principles of method if other than guideline:
Backs of 2 male and 2 female rabbits were shaved. Compound was applied undiluted to the skin at a dose level of 2000 mg/kg. The test area was loosely covered with plastic. After 24 hours, wrappings were removed and test areas cleaned. Animals were observed 14 days for symptoms and mortality
GLP compliance:
not specified
Test type:
standard acute method
Limit test:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
3,4-dichlorophenyl isocyanate
EC Number:
203-026-2
EC Name:
3,4-dichlorophenyl isocyanate
Cas Number:
102-36-3
Molecular formula:
C7H3Cl2NO
IUPAC Name:
1,2-dichloro-4-isocyanatobenzene
Details on test material:
no data

Test animals

Species:
rabbit
Strain:
not specified
Sex:
male/female

Administration / exposure

Type of coverage:
occlusive
Vehicle:
unchanged (no vehicle)
Duration of exposure:
24 h
Doses:
2000 mg/kg
No. of animals per sex per dose:
2
Control animals:
not specified

Results and discussion

Effect levels
Sex:
male/female
Dose descriptor:
LD50
Effect level:
> 2 000 mg/kg bw
Mortality:
no death occured
Clinical signs:
other: no symptoms occured
Gross pathology:
at the time of sacrifice, a gross necropsy revealed a darkened ring at the base of the cortex of the kidneys, grainy texture of the liver, and lungs with edema and small hemorrhagic areas.

Any other information on results incl. tables

The dermal toxicity for male and female rabbits was greated than 2000 milligram per kilogram. No symptoms or death occurred over a 14 -day observation period. At the time of sacrifice, a gross necropsy revealed a darkened ring at the base of the cortex of the kidneys, grainy texture of the liver, and lungs with edema and small hemorrhagic areas. Other internal organs appeared normal.

Applicant's summary and conclusion

Interpretation of results:
practically nontoxic
Remarks:
Migrated information
Executive summary:

Backs of 2 male and 2 female rabbits were shaved. Compound was applied undiluted to the skin at a dose level of 2000 mg/kg. The test area was loosely covered with plastic. After 24 hours, wrappings were removed and test areas cleaned. Animals were observed 14 days for symptoms and mortality. LD50 > 2000 mg/kg bw.