Registration Dossier
Registration Dossier
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EC number: 216-467-0 | CAS number: 1591-02-2
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
48-h EC50 >117 mg/l, (hghest concentration tested, measured by DOC, according to OECD 201), read-across from CAS 1066-42-8
Key value for chemical safety assessment
Additional information
No data are available with the registered substance, a study however is available on its silicon hydrolysis product dimethylsilanediol (CAS 1066-42-8). A 48-hour EC50 value of >117 mg/L and NOEC of ≥117 mg/L have been determined for the effects of dimethylsilanediol on mobility of Daphnia magna.
Dibutoxy(dimethyl)silane also produces butan-1-ol (n-butanol) as a result of hydrolysis. An OECD SIDS (2001) is available with n-butanol (CAS 71-36-3) indicating invertebrate (Daphnia magna) EC50s in the range 1300 to 1900 mg/L.
Reference: OECD (2001) SIDS Initial Assessment Report for SIAM 13, n-Butyl Alcohol, CAS 71-36-3
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