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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
key study
Study period:
09 - 20 Nov 1979
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:
1980
Report date:
1980

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 401 (Acute Oral Toxicity)
GLP compliance:
no
Test type:
standard acute method
Limit test:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
2,9-bis(4-chlorophenyl)anthra[2,1,9-def:6,5,10-d'e'f']diisoquinoline-1,3,8,10(2H,9H)-tetrone
EC Number:
219-166-2
EC Name:
2,9-bis(4-chlorophenyl)anthra[2,1,9-def:6,5,10-d'e'f']diisoquinoline-1,3,8,10(2H,9H)-tetrone
Cas Number:
2379-77-3
Molecular formula:
C36H16Cl2N2O4
IUPAC Name:
2,9-bis(4-chlorophenyl)anthra[2,1,9-def:6,5,10-d'e'f']diisoquinoline-1,3,8,10(2H,9H)-tetrone
Test material form:
solid: particulate/powder

Test animals

Species:
rat
Strain:
Sprague-Dawley
Sex:
male/female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: Eggersmann KG, Germany
- Weight at study initiation: 230 g (male, mean), 180 g (female, mean)
- Fasting period before study: 15 - 20 h prior to application
- Housing: Macrolon cages, groups of 5
- Diet (e.g. ad libitum): ad lib.
- Water (e.g. ad libitum): ad lib.

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
CMC (carboxymethyl cellulose)
Remarks:
0.5% aqueous solution
Details on oral exposure:
VEHICLE
- Concentration in vehicle: 50%

MAXIMUM DOSE VOLUME APPLIED: 19 mL/kg bw
Doses:
5000 mg/kg bw
No. of animals per sex per dose:
5
Control animals:
no
Details on study design:
- Duration of observation period following administration: 14 days
- Frequency of observations and weighing: daily, weighing on day 0, 2-4, 7 and 13
- Necropsy of survivors performed: yes
- Other examinations performed: clinical signs, body weight

Results and discussion

Effect levelsopen allclose all
Key result
Sex:
male/female
Dose descriptor:
LD50
Effect level:
> 5 000 mg/kg bw
Based on:
test mat.
Remarks on result:
not determinable due to absence of adverse toxic effects
Sex:
male/female
Dose descriptor:
LD50
Effect level:
> 2 310 mg/kg bw
Based on:
act. ingr.
Remarks on result:
not determinable due to absence of adverse toxic effects
Mortality:
0% mortaility
Clinical signs:
urine/feces discoloured (red)
Body weight:
no effect on body weight observed
Gross pathology:
no adverse findings

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
The test item has a LD50 (oral, gavage) >5000 mg/kg bw in male/female rats. The substance is not classifiable according to CLP criteria.