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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

oral, rat LD50 > 2000 mg/kg bw 
dermal, rat LD50 > 2000 mg/kg bw

Key value for chemical safety assessment

Acute toxicity: via oral route

Endpoint conclusion
Endpoint conclusion:
no adverse effect observed

Acute toxicity: via inhalation route

Endpoint conclusion
Endpoint conclusion:
no study available

Acute toxicity: via dermal route

Endpoint conclusion
Endpoint conclusion:
no adverse effect observed

Additional information

Oral exposure:

After single oral application of 2000 mg/kg bw of the test item, no deaths occurred during the GLP-Guideline study. No mortality and no clinical signs of toxicity were observed up to the end of the 14-day observation period in all animals. The median lethal dose of methyldiacetoxyisopropoxy silane after a single oral administration to rats of both sexes, observed over a period of 14 days is greater than 2000 mg/kg body weight.

Dermal exposure:

After dermal application of 2000 mg/kg bw of the test item for 24 hours, no deaths occurred during the GLP-Guideline study. No mortality and no clinical signs of toxicity were observed up to the end of the 14-day observation period in all animals. The median lethal dose of methyldiacetoxyisopropoxy silane after a single dermal administration to rats of both sexes, observed over a period of 14 days is greater than 2000 mg/kg body weight.

Justification for classification or non-classification

According to DSD (67/548/EEC) and CLP (1272/2008/EC) methyldiacetoxyisopropoxy silane does not meet the criteria to be classified regarding this endpoint.