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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: oral
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
other: not verifiable
Rationale for reliability incl. deficiencies:
other: no information given in SNIF-file

Data source

Reference
Reference Type:
other: Body responsible for the test
Title:
Unnamed
Year:
1998

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: 96/54/EG, B.1tris (Akute-toxische-Klassen-Methode); OECD 423 (1996)
GLP compliance:
yes
Test type:
standard acute method
Limit test:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
-
EC Number:
428-410-9
EC Name:
-
Cas Number:
67014-36-2
Molecular formula:
C8H9N3O
IUPAC Name:
5-amino-6-methyl-2,3-dihydro-1H-1,3-benzodiazol-2-one

Test animals

Species:
other: rat, Wistar Crl:(WI)BR

Administration / exposure

Vehicle:
propylene glycol

Results and discussion

Effect levels
Sex:
male/female
Dose descriptor:
LD50
Effect level:
< 2 000 mg/kg bw
Mortality:
Male: 200 mg/kg bw; Number of animals: 3; Number of deaths: 0
Male: 2000 mg/kg bw; Number of animals: 3; Number of deaths: 3
Female: 200 mg/kg bw; Number of animals: 3; Number of deaths: 0
Female: 2000 mg/kg bw; Number of animals: 3; Number of deaths: 1
Clinical signs:
other: Clinical signs observed during the period were as follows, 2000 mg/kg: Lethargy, hunched posture, uncoordinated movements, piloerection, red staining of the nose, laboured respiration and emaciation was noted among the animals that died. Lethargy, hunched
Gross pathology:
Effects on organs:
Beginning of autolysis, enlarged kidneys and reduction in size of spleen, thymus and semial vesicales was found among the animals that died during the study.
No abnormalities were found at macroscopic post mortem examination of the surviving animals.

Applicant's summary and conclusion

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