Registration Dossier
Registration Dossier
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EC number: 245-904-8 | CAS number: 23843-64-3
PBT assessment
Administrative data
PBT assessment: overall result
- Name:
- RECONSILE [3-(trimethoxysilyl)propyl]urea 023843-64-3
- Type of composition:
- boundary composition of the substance
- State / form:
- liquid
- Reference substance:
- RECONSILE [3-(trimethoxysilyl)propyl]urea 023843-64-3
- PBT status:
- the substance is not PBT / vPvB
- Justification:
The registered substance 1-[3-(Trimethoxysilyl)propyl]urea (CAS No. 23843-64-3) is not PBT/vPvB based on ECHA guidance R.11.
Persistence Assessment
The registered substance is expected to hydrolyse rapidly (DT50 = 2.8 h, 20 -25°C and pH 7, QSAR) to form the silanol hydrolysis product [3-(trihydroxysilyl)propyl]urea and the alcohol hydrolysis product methanol (CAS No. 67 -56 -1). Therefore, the substance is not persistent (not P/vP).
Bioaccumulation Assessment
The registered substance has a predicted log Kow of -0.2 (QSAR) and therefore does not meet the screening criteria for bioaccumulation (not B/vB).
Toxicity Assessment
The available short-term effect values for aquatic toxicity to all three trophic levels and the available long-term effect value for algae are above the threshold value of 0.01 mg/L and the substance is not classified for mammalian toxicity. Therefore, the registered substance does not meet the screening criteria for T (not T).
Reference
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.
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