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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
acute toxicity: dermal
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1975
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions

Data source

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

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 402 (Acute Dermal Toxicity)
GLP compliance:
no
Test type:
standard acute method
Limit test:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
Violanthrene-5,10-dione
EC Number:
204-152-0
EC Name:
Violanthrene-5,10-dione
Cas Number:
116-71-2
Molecular formula:
C34H16O2
IUPAC Name:
violanthrene-5,10-dione
Test material form:
solid: particulate/powder
Details on test material:
Vat Blue 20

Test animals

Species:
rat
Strain:
not specified
Sex:
not specified
Details on test animals or test system and environmental conditions:
no data

Administration / exposure

Type of coverage:
not specified
Vehicle:
water
Remarks:
to form a paste
Details on dermal exposure:
50% aqueous paste
Duration of exposure:
24 hours
Doses:
2500 mg/kg bw
No. of animals per sex per dose:
no data
Control animals:
no
Details on study design:
- Duration of observation period following administration: 14 days
- Frequency of observations: clinical signs daily
- Necropsy of survivors performed: yes
Statistics:
NA

Results and discussion

Preliminary study:
NA
Effect levels
Key result
Sex:
not specified
Dose descriptor:
LD50
Effect level:
> 2 500 mg/kg bw
Based on:
test mat.
Mortality:
no deaths
Clinical signs:
no effect
Body weight:
no data
Gross pathology:
no effect

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
acute dermal LD50 in rats is higher than 2500 mg/kg bw