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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Comparable to guideline study with acceptable restrictions (missing purity of the test substance)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1982
Report date:
1982

Materials and methods

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

Test material

Constituent 1
Chemical structure
Reference substance name:
Naphthalene-1,8-dicarboximide
EC Number:
201-379-7
EC Name:
Naphthalene-1,8-dicarboximide
Cas Number:
81-83-4
Molecular formula:
C12H7NO2
IUPAC Name:
3-azatricyclo[7.3.1.0⁵,¹³]trideca-1(13),5,7,9,11-pentaene-2,4-dione
Details on test material:
- Name of test material (as cited in study report): Naphthalimid tr. (dry)
- Physical state: solid
- Analytical purity: no data

Test animals

Species:
rat
Strain:
Wistar
Sex:
male/female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: Winkelmann, Borchen, D
- Age at study initiation: 7 - 14 weeks
- Weight at study initiation: males 186 g, females 174 g
- Fasting period before study: 16 h
- Housing: in groups of 5 animals
- Diet: Altromin R 1324, Altromin GmbH, Lage, D, ad lib.

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 22 +/- 1.5°C
- Humidity (%): 60 +/- 5°C
- Photoperiod (hrs dark / hrs light): 12 / 12

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
water
Details on oral exposure:
MAXIMUM DOSE VOLUME APPLIED: 20 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: observations were performed several times on the day of exposure, twice daily on workdays and once daily on weekends and holidays; weighing was performed on days 0, 7 and 14
- Necropsy of survivors performed: yes, randomly

Results and discussion

Effect levels
Sex:
male/female
Dose descriptor:
LD50
Effect level:
> 5 000 mg/kg bw
Based on:
test mat.
Remarks on result:
other: no signs of toxicity observed
Mortality:
no mortality observed
Clinical signs:
other: no signs of toxicity observed
Gross pathology:
no noticeable effects reported

Applicant's summary and conclusion

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