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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Endpoint:
acute toxicity: oral
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
secondary literature
Justification for type of information:
Data is from study reprot

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1977
Report date:
1977

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: as below
Principles of method if other than guideline:
Acute oral toxicity of 5,12-dihydroquino[2,3-b]acridine-7,14-dione in rats
GLP compliance:
not specified
Test type:
other: No data
Limit test:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
5,12-dihydroquino[2,3-b]acridine-7,14-dione
EC Number:
213-879-2
EC Name:
5,12-dihydroquino[2,3-b]acridine-7,14-dione
Cas Number:
1047-16-1
Molecular formula:
C20H12N2O2
IUPAC Name:
5,12-dihydroquino[2,3-b]acridine-7,14-dione
Test material form:
solid
Details on test material:
Name of the test chemical:5,12-dihydroquino[2,3-b]acridine-7,14-dione
Molecular Formula:C20H12N2O2
Molecular Weight: 312.327 g/mole
Substance Type: Organic
Physical State: Solid
Specific details on test material used for the study:
Name of the test chemical:5,12-dihydroquino[2,3-b]acridine-7,14-dione
Molecular Formula:C20H12N2O2
Molecular Weight: 312.327 g/mole
Substance Type: Organic
Physical State: Solid

Test animals

Species:
rat
Strain:
not specified
Sex:
not specified
Details on test animals or test system and environmental conditions:
not specified

Administration / exposure

Route of administration:
oral: unspecified
Vehicle:
not specified
Details on oral exposure:
not specified
Doses:
3200 mg/kg/day
No. of animals per sex per dose:
not specified
Control animals:
not specified
Details on study design:
not specified
Statistics:
not specified

Results and discussion

Preliminary study:
not specified
Effect levels
Sex:
not specified
Dose descriptor:
LD50
Effect level:
> 3 200 mg/kg bw
Based on:
test mat.
Remarks on result:
other: No mortality observed
Mortality:
No effect on survival of treated rats were observed at 3200 mg/kg bw
Clinical signs:
other: No data available
Gross pathology:
No data available
Other findings:
No data available

Applicant's summary and conclusion

Interpretation of results:
Category 5 based on GHS criteria
Conclusions:
LD50 was considered to be > 3200 mg/kg/day when rats were treated with 5,12-dihydroquino[2,3-b]acridine-7,14-dione orally.
Executive summary:

In acute oral toxicity study, rats were treated with 5,12-dihydroquino[2,3-b]acridine-7,14-dione in the concentration of 3200 mg/kg/day orally.No effect on survival of treated rats were observed at 3200 mg/kg bw. Therefore, LD50 was considered to be> 3200 mg/kg/day when rats were treated with 5,12-dihydroquino[2,3-b]acridine-7,14-dione orally.