Registration Dossier
Registration Dossier
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EC number: 700-208-8 | CAS number: -
Endpoint summary
Administrative data
Description of key information
Hydrolysis:
Based on existing data the substance is conisdered to be stable in water, a relevant hydrlosis was not observed.
Biodegradation in water: A relevant biodegradation was
measured (32 % after 28 d), the substance is classified as "inherently
biodegradable".
According to ECHA documentGuidance on information requirements
and chemical safety assessment
, chapter R.16, a half-life of 150 d in surface water and of 150 d in marine water ist stated as default value.
Biodegradation in soil: The degradation of N-[(3(5)-Methyl-1H-pyrazol-1-yl)methyl]acetamide (P 70/05) was investigated under aerobic conditions at 20 °C. Three German soils of different characteristics were used for the experiment (LUFA 2.1 - silty sand/sand, LUFA 2.2 - loamy sand and LUFA 2.3 - silty sand/sandy loam). The formation of 3-Methylpyrazole, a possible degradate of P 70/05, was monitored.
N-[(3(5)-Methyl-1H-pyrazol-1-yl)methyl]acetamide (P 70/05) degraded fastly in the soil test systems.
The DT-50 values of P 70/05 in the soils LUFA 2.1, LUFA 2.2 and LUFA 2.3 soil were 2.31, 0.70 and 1.05 days.
The DT-90 values of P 70/05 in the soils LUFA 2.1, LUFA 2.2 and LUFA 2.3 soil were 7.68, 2.32 and 3.31 days.
Within the course of the P 70/05 degradation, the original isomers ratio of P 70/05 changed.
The formation of 3-Methylpyrazole reached a maximum of 0.1331 mg/kg on day-3 in soil LUFA 2.3. On day-29 the analysed value for 3-Methylparazole accounted for 0.0158 and 0.0193 mg/kg in soil LUFA 2.3.
Additional information
Based on existing data the substance is conisdered to be stable in
water, a relevant hydrlosis was not observed. A relevant biodegradation
was measured (32 % after 28 d), the substance is classified as
"inherently biodegradable".
According to ECHA document Guidance on information requirements
and chemical safety assessment
, chapter R.16, a half-life of 150 d in surface water and of 150 d in marine water ist stated as default value.
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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