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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Repeated dose toxicity: other routes

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Administrative data

Endpoint:
short-term repeated dose toxicity: other route
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: 4e: Documentation insufficient for assessment.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1980

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Rabbit eyes were treated twice daily for 20 days with 1 mg per eye.
GLP compliance:
not specified
Limit test:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
4-methylthiosemicarbazide
EC Number:
229-563-2
EC Name:
4-methylthiosemicarbazide
Cas Number:
6610-29-3
Molecular formula:
C2H7N3S
IUPAC Name:
1-amino-3-methylthiourea
Details on test material:
no data

Test animals

Species:
rabbit
Strain:
not specified
Sex:
not specified

Administration / exposure

Route of administration:
other: ocular
Details on exposure:
Test substance was administered undiluted (crystals).
Duration of treatment / exposure:
4 weeks
Frequency of treatment:
twice a day, 5 days/week
Doses / concentrations
Remarks:
Doses / Concentrations:
1 mg/eye
No. of animals per sex per dose:
no data

Results and discussion

Results of examinations

Clinical signs:
no effects observed
Mortality:
no mortality observed
Haematological findings:
no effects observed
Details on results:
No clinicals findings, no haematological or biochemical parameters and no anatomo-pathological abnormalities were found. Furthermore, no deaths occured during the study.

Target system / organ toxicity

Critical effects observed:
not specified

Applicant's summary and conclusion