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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Description of key information

Key value for chemical safety assessment

Repeated dose toxicity: via oral route - systemic effects

Link to relevant study records
Reference
Endpoint:
short-term repeated dose toxicity: oral
Remarks:
combined repeated dose and reproduction / developmental screening
Type of information:
read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Reason / purpose for cross-reference:
read-across source
Key result
Dose descriptor:
NOAEL
Effect level:
>= 1 000 mg/kg bw/day (actual dose received)
Based on:
test mat.
Sex:
male/female
Remarks on result:
other: NOAEL = highest dose tested
Key result
Critical effects observed:
no
Endpoint conclusion
Endpoint conclusion:
no adverse effect observed
Study duration:
subacute
Species:
rat

Repeated dose toxicity: inhalation - systemic effects

Endpoint conclusion
Endpoint conclusion:
no study available

Repeated dose toxicity: inhalation - local effects

Endpoint conclusion
Endpoint conclusion:
no study available

Repeated dose toxicity: dermal - systemic effects

Endpoint conclusion
Endpoint conclusion:
no study available

Repeated dose toxicity: dermal - local effects

Endpoint conclusion
Endpoint conclusion:
no study available

Additional information

Justification for classification or non-classification

In the OECD 422 study the NOAEL was derived at the highest dose of 1000 mg/kg/day for systemic toxicity in adult male and female rats after five weeks of oral exposure to the read-across source substance WS405777. This does not necessitate any classification regarding repeated exposure according to European classification rules [Regulation (EC) 1272/2008].

The same conclusion of non-classification for specific target organ toxicity after repeated oral dosing can be drawn for the read-across target substance WS406663 based on the close chemical similarity between the two substances (see IUCLID Section 13 „Validity Assessment Report“ for the read-across approach).