Methyl Isothiocyanate│Network Academic Resources of Pesticide

Methyl Isothiocyanate

| 来源-本站收集整理 | 作者-本站 | 2012-05-23

methyl isothiocyanate (Ref: SN-32866)
** methyl mustard oil ** MITC ** isothiocyanic acid methyl ester ** MIT ** R014821 ** Translations

GENERAL INFORMATION

Description: Multipurpose soil fumigant used to control nematodes, soil insects, fungi and weed seeds. Also a pesticide transformation product.

Introduction: -

EC Directive 1107/2009 (repealing 91/414):

Status	Not applicable
Dossier rapporteur/co-rapporteur	Not applicable
Date inclusion expires	Not applicable

Approved for use (√) or known to be used (#) in the following European countries:

General status:

Pesticide type	Metabolite, Fungicide, Nematicide, Herbicide, Insecticide
Metabolite Type	Soil
Substance group	Unclassified
Substance origin	Synthetic
Mode of action	Fumigant with contact action
CAS RN	556-61-6
EC number	209-132-5
CIPAC number	-
US EPA chemical code	068103
Chemical formula	C₂H₃NS
SMILES	O=C(Oc1cc(c(c(c1)C)S(=O)C)C)NC
International Chemical Identifier (InChI)	InChI=1/C2H3NS/c1-3-2-4/h1H3
Structure diagram/image available?	Yes
Molecular mass (g mol^-1)	73.11
IUPAC Name	methyl isothiocyanate
CAS Name	isothiocyanatomethane
Other status information	-
Herbicide Resistance Classification (HRAC)	Not applicable
Insecticide Resistance Classification (IRAC)	Not applicable
Fungicide Resistance Classification (FRAC)	Not known
Physical state	Colourless crystalline solid
Related substances & organisms	-

Can be a metabolite of:

Parent	Formation Medium	Estimated Maximum Occurrence Fraction	91/414 Relevancy
metam-sodium	Soil	0.829	Major fraction, Relevant
dazomet	Soil	0.740	Major fraction, Relevant
metam-potassium	Soil	0.829	Major fraction, Relevant
imazalil	Soil	0.096	Minor fraction, Relevant

Formulations:

Property	Value
Example manufacturers of products using this active	-
Example products using this active	-
UK LERAP status	Not applicable
Formulation and application details	-

ENVIRONMENTAL FATE

Property		Value	Source/Quality Score/Other Information	Interpretation
Solubility - In water at 20^oC (mg l^-1)		8940	A5	High
Solubility - In organic solvents at 20^oC (mg l^-1)		-	-	-
Melting Point (^oC)		35	E3	-
Boiling Point (^oC)		119	V3	-
Degradation point (^oC)		-	-	-
Flashpoint (^oC)		-	-	-
Octanol-water partition coefficient at pH 7, 20^oC	P	1.12 X 10⁰¹	Calculated	-
Octanol-water partition coefficient at pH 7, 20^oC	Log P	1.05	A5	Low
Bulk density (g ml^-1)/Specific gravity		1.07	E3	-
Dissociation constant (pKa) at 25^oC		12.3	Q3	-
Dissociation constant (pKa) at 25^oC		Note: Strong base
Vapour pressure at 25^oC (mPa)		1739000	A5	Volatile
Henry's law constant at 25^oC (Pa m³ mol^-1)		14.2	A5	Moderately volatile
Henry's law constant at 20^oC (dimensionless)		5.84 X 10^-03	Calculated	Volatile
GUS leaching potential index		1.21	Calculated	Low leachability
SCI-GROW groundwater index (g l^-1) for a 1 kg ha^-1 or 1 l ha^-1 application rate	Value	2.71 X 10^-03	Calculated	-
	Note	-
Potential for particle bound transport index		-	Calculated	Low
Maximum UV-vis absorption L mol^-1 cm^-1		Neutral soln: 235nm=635, 283nm=65, 321nm=17 Alkaline soln: 276nm=46, 320nm=5, 290nm=>10 Acidic soln: 235nm=635, 283nm=23, 290nm=>10	A5	-
Surface tension (mN m^-1)		-	-	-

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