Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: dermal
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1998

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 402 (Acute Dermal Toxicity)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Test type:
standard acute method

Test material

Constituent 1
Chemical structure
Reference substance name:
-
EC Number:
440-240-7
EC Name:
-
Cas Number:
1282554-35-1
Molecular formula:
C19 H20 N4
IUPAC Name:
2-Propyl-4-methyl-6-(1-methylbenzimidazol-2-yl)benzimidazole

Test animals

Species:
rat
Strain:
Wistar
Sex:
male/female

Results and discussion

Effect levels
Sex:
male/female
Dose descriptor:
LD50
Effect level:
2 000 mg/kg bw
Mortality:
No mortality occurred.
Clinical signs:
Red staining of the fur on the head was Seen in two males and one female on day 2. Red staining of the fur is regularly Seen in rats used in this type of dermal toxicity studies. During periods of Stress red discoloured liquid may come out of the nose and eyes of the animals and is spread over the fur by grooming.Focal erythema was observed in the treated skin area of one fernale. Green staining on the back was observed in two rnales and orange staining on the back or flank in four fernales during the observation period.
Body weight:
Body weight gain during the observation period was within the range expected for rats used in this type of study.
Gross pathology:
No abnormalities were found in the animals at macroscopic post mortem examination.

Applicant's summary and conclusion