3-methylpyrazole

Field studies

Administrative data

Endpoint:

field studies accumulation

Remarks:

Residues in plants

Type of information:

experimental study

Adequacy of study:

supporting study

Study period:

1982-1983

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

study well documented, meets generally accepted scientific principles, acceptable for assessment

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

1984

Report date:

1984

Materials and methods

Test guideline

Qualifier:

no guideline available

GLP compliance:

no

Media:

water, plants, soil

Test material

Test material information

Constituent 1

Reference substance name:

3-methylpyrazole

EC Number:

215-925-7

EC Name:

3-methylpyrazole

Cas Number:

1453-58-3

Molecular formula:

C4H6N2

IUPAC Name:

3-methyl-1H-pyrazole

Test material form:

liquid

Applicant's summary and conclusion

Conclusions:

The parent compound CMP is taken up by the plant and converted within a few days.
3-methypyrazole was isolated and identified as the conversion product. A similar finding was also obtained from the investigations in the soil.
Since CMP residues are not to be expected on the basis of these results, all further residue-toxicological investigations were continued with the transformation product 3-MP.
According to the uptake and transport studies, the MP is taken up by the plant via leaf and root.
In two vegetation periods and at different locations, residue dynamic investigations and residue determinations were carried out on samples from plot trials with application rates of 2 to 8 kg active substance/ha 1, after autumn and spring application of CMP.
No free 3-MP was detected in the cereal grain at harvest (<0.03 ppm). This also applied to the other substrates straw and beet, where, however, residues of up to 0.1 ppm were found in a few exceptions.

Translated with www.DeepL.com/Translator (free version)

Executive summary:

The parent compound CMP is taken up by the plant and converted within a few days.
3-methypyrazole was isolated and identified as the conversion product. A similar finding was also obtained from the investigations in the soil.
Since CMP residues are not to be expected on the basis of these results, all further residue-toxicological investigations were continued with the transformation product 3-MP.
According to the uptake and transport studies, the MP is taken up by the plant via leaf and root.
In two vegetation periods and at different locations, residue dynamic investigations and residue determinations were carried out on samples from plot trials with application rates of 2 to 8 kg active substance/ha 1, after autumn and spring application of CMP.
No free 3-MP was detected in the cereal grain at harvest (<0.03 ppm). This also applied to the other substrates straw and beet, where, however, residues of up to 0.1 ppm were found in a few exceptions.

Translated with www.DeepL.com/Translator (free version)