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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: other routes
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1972
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: BASF internal guideline followed

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1972
Report date:
1972

Materials and methods

Principles of method if other than guideline:
BASF-Testing method
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro-3H-indol-3-one
EC Number:
207-586-9
EC Name:
2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro-3H-indol-3-one
Cas Number:
482-89-3
Molecular formula:
C16H10N2O2
IUPAC Name:
2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro-3H-indol-3-one
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder
Details on test material:
- Name of test material (as cited in study report): Handelsware Indigo rein BASF Pulver
- Substance type: active ingredient
- Physical state: solid

Test animals

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

Administration / exposure

Route of administration:
intraperitoneal
Vehicle:
CMC (carboxymethyl cellulose)
Details on exposure:
2% to 30% concentration in vehicle
Doses:
no data
No. of animals per sex per dose:
no data
Control animals:
no
Details on study design:
- Duration of observation period following administration: 7 days
- Frequency of observations and weighing: no data
- Necropsy of survivors performed: yes
Statistics:
NA

Results and discussion

Effect levels
Dose descriptor:
LD50
Effect level:
ca. 8 000 mg/kg bw
Mortality:
no data
Clinical signs:
ataxia, dyspnea, blue discoloration of fur
Body weight:
no data
Gross pathology:
discoloration of organs, intraabdominal precipitation of TS, blunt liver margins, enlarged spleen

Applicant's summary and conclusion

Conclusions:
The intraperitoneal LD50 in the mouse is approximately 8000 mg/kg bw