Registration Dossier
Registration Dossier
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EC number: 200-309-2 | CAS number: 57-06-7
Biodegradation in soil
Administrative data
- Endpoint:
- biodegradation in soil, other
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Study period:
- 1995
- 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:
- publication
- Title:
- Transformation of the Glucosinolate-Derived Allelochemicals Allyl Isothiocyanate and Allylnitrile in Soil.
- Author:
- Borek V, Morra MJ, Brown P and McCaffrey JP
- Year:
- 1 995
- Bibliographic source:
- J. Agric. Food Chem. 1995, 43, 1935-1940
Materials and methods
- Principles of method if other than guideline:
- Half-life of allyl isothiocyanate in six soils was determined using gas chromatographic analysis of ethyl acetate extracts
- GLP compliance:
- not specified
- Test type:
- laboratory
Test material
- Reference substance name:
- Allyl isothiocyanate
- EC Number:
- 200-309-2
- EC Name:
- Allyl isothiocyanate
- Cas Number:
- 57-06-7
- Molecular formula:
- C4H5NS
- IUPAC Name:
- 3-isothiocyanatoprop-1-ene
- Test material form:
- liquid
Constituent 1
Results and discussion
% Degradationopen allclose all
- % Degr.:
- 29.8
- Parameter:
- test mat. analysis
- Sampling time:
- 24 h
- Remarks on result:
- other: average
- % Degr.:
- 97.1
- Parameter:
- test mat. analysis
- Sampling time:
- 10 d
- Remarks on result:
- other: average
Half-life / dissipation time of parent compound
- DT50:
- >= 20 - <= 74 h
- Type:
- (pseudo-)first order (= half-life)
- Remarks on result:
- other: mean half-life in six different soils
- Transformation products:
- not specified
Applicant's summary and conclusion
- Conclusions:
- Half-life AITC in soil: 20-60 h.
AITC transformation increased with reduced soil moisture and higher temperatures and occurred more rapidly in soils containing greater concentrations of organic carbon.
No differences between the transformation rates of substrate in Latehco soil and is soil sterilized with ethylene oxide or by autoclaving occurred for AITC.
It is important to consider that disappearance was determined 48h after substrate addition. Differences may become more obvious if longer assay times are used.
No evidence of enhanced degradation from repeated application was observed for AITC in Letahco soil.
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