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EC number: 451-620-7
CAS number: 352230-22-9
Mean nitrogen concentration
and formation rates after a 28 day exposure.
Test system (mg/kg)
Day 0 Mean nitrogen concentration (mg/kg)
Day 28 Mean nitrate concentration (mg/kg)
Mean nitrogen formation rate (mg/kg/day)
28-day EC50 >100 mg/kg soil dry weight, EC10
>100 mg/kg soil dry weight and NOEC ≥100 mg/kg soil dry weight, effects
of the test substance on nitrogen formation rate of soil microflora.
An OECD TG 216 soil microorganism test has been conducted with the
registration substance according to ECHA final decision
TPE-D-2114497761-36-01/F. The draft study report for the test is
available, although this may be subject to change depending on the final
A 28-day EC50 value of >100 mg/kg soil dry weight, an EC10
value of >100 mg/kg soil dry weight and a NOEC of ≥100 mg/kg soil
dry weight have been determined for the effects of the test substance on
nitrogen formation rate of soil microflora, in accordance with test
guideline OECD 216 and in compliance with GLP (Smithers, 2020).
The chemical safety assessment will be updated once the study is
Until the final report is available, terrestrial data have been read
across from the siloxane decamethylcyclopentasiloxane (D5, CAS 541-02-6)
to derive an interim PNECsoil for hazard assessment.
See IUCLID Sections 6.0 and 6.3 (CSR Sections 7.0 and 7.2) for further
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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