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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

In a repeat-dose inhalation administration study (Mitsubishi, 2001), whole body exposure of trimethylsilane to rats for 28 consecutive days did not result in any findings attributable to treatment. The No-Observed-Adverse-Effect-Concentration (NOAEC) was therefore considered to be 4730 mg/m3 (4.73 mg/L), the highest concentration tested.

Key value for chemical safety assessment

Repeated dose toxicity: via oral route - systemic effects

Endpoint conclusion
Endpoint conclusion:
no study available

Repeated dose toxicity: inhalation - systemic effects

Endpoint conclusion
Endpoint conclusion:
no adverse effect observed
Dose descriptor:
NOAEC
4 730 mg/m³
Study duration:
subacute
Species:
rat

Repeated dose toxicity: inhalation - local effects

Endpoint conclusion
Endpoint conclusion:
no adverse effect observed
Dose descriptor:
NOAEC
4 730 mg/m³
Study duration:
subacute
Species:
rat

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

In a repeat-dose inhalation administration study (Mitsubishi, 2001), whole body exposure of trimethylsilane to rats for 28 consecutive days did not result in any findings attributable to treatment. The No-Observed-Adverse-Effect-Concentration (NOAEC) was therefore considered to be 4730 mg/m3 (4.73 mg/L), the highest concentration tested.


Justification for classification or non-classification

Based on the available data, trimethylsilane does not require classification for specific target organ toxicity following repeated exposure according to Regulation (EC) No 1272/2008.