fensulfothion (Ref: ENT 24945) ** HSDB 1580 ** Translations

Environmental Fate - Ecotoxicology - Human Health

GENERAL INFORMATION

Description: Largely obsolete compound formerly used against soil nematodes and many soil insects in field crops, vegetables and fruit

Introduction: -

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

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

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

AT

BE

BG

CY

CZ

DE

DK

EE

EL

ES

FI

FR

HU

IE

IT

LT

LU

LV

MT

NL

PL

PT

RO

SE

SI

SK

UK

General status:

Pesticide type	Insecticide, Nematicide
Substance group	Organophosphate
Substance origin	Synthetic
Mode of action	Acetylcholinesterase (AChE) inhibitor.
CAS RN	115-90-2
EC number	204-114-3
CIPAC number	303
US EPA chemical code	032701
Chemical formula	C11H17O4PS2
SMILES	S=P(Oc1ccc(cc1)S(=O)C)(OCC)OCC
International Chemical Identifier (InChI)	InChI=1/C11H17O4PS2/c1-4-13-16(17,14-5-2)15-10-6-8-11(9-7-10)18(3)12/h6-9H,4-5H2,1-3H3
Structure diagram/image available?	Yes
Molecular mass (g mol-1)	308.35
IUPAC Name	O,O-diethyl O-4-methylsulfinylphenyl phosphorothioate
CAS Name	O,O-diethyl O-[4-(methylsulfinyl)phenyl] phosphorothioate
Other status information	Marine Pollutant
Herbicide Resistance Classification (HRAC)	Not applicable
Insecticide Resistance Classification (IRAC)	1B
Fungicide Resistance Classification (FRAC)	Not applicable
Physical state	Yellow liquid
Related substances & organisms	-

Formulations:

Property	Value
Example manufacturers of products using this active	-
Example products using this active	-
UK LERAP status	No UK approval for use or outside scope
Formulation and application details	-

ENVIRONMENTAL FATE

Property		Value	Source/Quality Score/Other Information	Interpretation
Solubility - In water at 20oC (mg l-1)		1540	F3	High
Solubility - In organic solvents at 20oC (mg l-1)		-	-	-
Melting Point (oC)		25	V3	-
Boiling Point (oC)		-	-	-
Degradation point (oC)		-	-	-
Flashpoint (oC)		-	-	-
Octanol-water partition coefficient at pH 7, 20oC	P	1.70 X 1002	Calculated	-
	Log P	2.23	V3	Low
Bulk density (g ml-1)/Specific gravity		1.20	F3	-
Dissociation constant (pKa) at 25oC		-	-	-
		Note:
Vapour pressure at 25oC (mPa)		6.7	Q3	Volatile
Henry's law constant at 25oC (Pa m3 mol-1)		-	-	-
Henry's law constant at 20oC (dimensionless)		5.51 X 10-07	Calculated	Moderately volatile
GUS leaching potential index		3.01	Calculated	High leachability
SCI-GROW groundwater index (µg l-1) for a 1 kg ha-1 or 1 l ha-1 application rate	Value	2.69 X 10-01	Calculated	-
	Note	-
Potential for particle bound transport index		-	Calculated	Low
Maximum UV-vis absorption L mol-1 cm-1		-	-	-
Surface tension (mN m-1)		-	-	-

Degradation:

Property		Value	Source/Quality Score/Other Information	Interpretation
Soil degradation (days) (aerobic)	DT50 (typical)	30	F3	Moderately persistent
	DT50 (lab at 20oC)	14	F3	Non-persistent
	DT50 (field)	-	-	-
	DT90 (lab at 20oC)	-	-	-
	DT90 (field)	-	-	-
	Note	General literature DT50 range 14-180 days
Aqueous photolysis DT50 (days) at pH 7	Value	-	-	-
	Note	-
Aqueous hydrolysis DT50 (days) at 20oC and pH 7	Value	72.5	Q3	Moderately persistent
	Note	-
Water-Sediment DT50 (days)		-	-	-
Water phase only DT50 (days)		-	-	-

Soil adsorption and mobility:

Property		Value	Source/Quality Score/Other Information	Interpretation
Linear	Kd	-	Q3	Moderately mobile
	Koc	91
	Notes and range	General literature Koc range 77-105 mL/g
Freundlich	Kf	-	-	-
	Kfoc	-
	1/n	-
	Notes and range	-
pH sensitivity		-

ECOTOXICOLOGY

Property		Value	Source/Quality Score/Other Information	Interpretation
Bio-concentration factor	BCF	-	-	-
	CT50 (days)	-		-
Bioaccumulation potential		-	Calculated	Low
Mammals - Acute oral LD50 (mg kg-1)		2.2	V3 Rat	High
Mammals - Short term dietary NOEL	(mg kg-1)	-	-	-
	(ppm diet)	-		-
Birds - Acute LD50 (mg kg-1)		1.2	V3 Coturnix japonica	High
Birds - Short term dietary (LC50/LD50)		-	-	-
Fish - Acute 96 hour LC50 (mg l-1)		0.072	F4 Lepomis macrochirus	High
Fish - Chronic 21 day NOEC (mg l-1)		-	-	-
Aquatic invertebrates - Acute 48 hour EC50 (mg l-1)		-	-	-
Aquatic invertebrates - Chronic 21 day NOEC (mg l-1)		-	-	-
Aquatic crustaceans - Acute 96 hour LC50 (mg l-1)		-	-	-
Sediment dwelling organisms - Acute 96 hour LC50 (mg l-1)		-	-	-
Sediment dwelling organisms - Chronic 28 day NOEC, static, water (mg l-1)		-	-	-
Sediment dwelling organisms - Chronic 28 day NOEC, sediment (mg kg-1)		-	-	-
Aquatic plants - Acute 7 day EC50, biomass (mg l-1)		-	-	-
Algae - Acute 72 hour EC50, growth (mg l-1)		-	-	-
Algae - Chronic 96 hour NOEC, growth (mg l-1)		-	-	-
Honeybees - Acute 48 hour LD50 (µg bee-1)		-	-	-
Earthworms - Acute 14 day LC50 (mg kg-1)		-	-	-
Earthworms - Chronic 14 day NOEC, reproduction (mg kg-1)		-	-	-
Other soil macro-organisms - e.g. Collembola	LR50product ha EC50product ha NOECproduct ha % Effect	-	-	-
Other arthropod (1)	LR50 g ha-1	-	-	-
	% Effect	-	-	-
Other arthropod (2)	LR50 g ha-1	-	-	-
	% Effect	-	-	-
Soil micro-organisms		-	-	-
Mesocosm study data	NOEAEC mg l-1	-	-	-
	NOEAEC mg l-1	-	-	-

HUMAN HEALTH AND PROTECTION

General:

Property		Value	Source/Quality Score/Other Information	Interpretation
Mammals - Acute oral LD50 (mg kg-1)		2.2	V3 Rat	High
Mammals - Dermal LD50 (mg kg-1 body weight)		3.0	V3 Rat	-
Mammals - Inhalation LC50 (mg l-1)		0.113	V3 Rat	-
Other Mammal toxicity endpoints		-		-
ADI - Acceptable Daily Intake (mg kg-1bw day-1)		0.003	JMPR 1982	-
ARfD - Acute Reference Dose (mg kg-1bw day-1)		-	-	-
AOEL - Acceptable Operator Exposure Level - Systemic (mg kg-1bw day-1)		-	-	-
Dermal penetration studies (%)		-	-	-
Dangerous Substances Directive 76/464		-	-	-
Exposure Limits		[TLV TWA: 0.01 mg/m³]	Q3	-
Exposure Routes	Public	-
	Occupational	[Absorbed through the skin, by inhalation and from the gastrointestinal tract]
Examples of European MRLs (mg kg-1)	Value	-
	Note	For the EU pesticides database click here
Drinking Water MAC (µg l-1)		-	-	-

Health issues:

Carcinogen	Mutagen	Endocrine disrupter	Reproduction / development effects	Acetyl cholinesterase inhibitor	Neurotoxicant	Respiratory tract irritant	Skin irritant	Eye irritant
-	-	-	-					-
General human health issues		[Very toxic]

: Yes, known to cause a problem
: No, known not to cause a problem
: Possibly, status not identified
- : No data

Handling issues:

Property		Value	Source/Quality Score/Other Information	Interpretation
General		[No information available]
EC Risk Classification		[T+ - Very toxic: R27, R28], [N - Dangerous for the environment: R50, R53]
EC Safety Classification		S1/2, S23, S28, S36/37, S45, S60, S61
WHO Classification		O	-	Obsolete substance
US EPA Classification (formulation)		No consensus across products or no products available	-	-
UN Number		-
Waste disposal & packaging		-

TRANSLATIONS