Registration Dossier
Registration Dossier
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EC number: 617-969-6 | CAS number: 87135-01-1
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
Short-term toxicity to invertebrates: 48 hr EC50 >100 mg/l (nominal) (highest concentration tested) (OECD 202). The EC50 is equivalent to >74 mg/l when expressed in terms of the silanol hydrolysis product.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- mg/L
Additional information
A 48-hour E(L)C50 value of >100 mg/l and NOEC of ≥100 mg/l (nominal) (highest concentration tested) have been determined for the effects of 1,6-bis(trimethoxysilyl)hexane (CAS 87135-01-1) on mobility of Daphnia magna.
In view of the test media preparation method/exposure regime it is likely that the test organisms were exposed predominantly to the hydrolysis products of the tested substance.
The results may be expressed in terms of concentration of the hydrolysis product, 1,6-bis(trihydroxysilyl)hexane, by applying a molecular weight correction: (MW of silanol = 242.38 / MW of parent = 326.54) * >100 = >74 mg/l.
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