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GENERAL INFORMATION

Description: An obsolete soil-incorporated herbicide once used to control germinating grass and broad-leaved weeds

Introduction: 1964, USA

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

Status	Excluded from Annex 1
Dossier rapporteur/co-rapporteur	-
Date inclusion expires	Expired

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

Also registered in: Australia

General status:

Pesticide type	Herbicide
Substance group	Thiocarbamate
Substance origin	Synthetic
Mode of action	Selective, inhibition of lipid synthesis
CAS RN	1929-77-7
EC number	217-681-7
CIPAC number	237
US EPA chemical code	041404
Chemical formula	C10H21NOS
SMILES	O=C(SCCC)N(CCC)CCC
International Chemical Identifier (InChI)	InChI=1/C10H21NOS/c1-4-7-11(8-5-2)10(12)13-9-6-3/h4-9H2,1-3H3
Structure diagram/image available?	Yes
Molecular mass (g mol-1)	203.34
IUPAC Name	S-propyl dipropyl(thiocarbamate)
CAS Name	S-propyl dipropylcarbamothioate
Other status information	Potential groundwater contaminant
Herbicide Resistance Classification (HRAC)	N
Insecticide Resistance Classification (IRAC)	Not applicable
Fungicide Resistance Classification (FRAC)	Not applicable
Physical state	Clear 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)		90	G4	Moderate
Solubility - In organic solvents at 20oC (mg l-1)		-	-	-
Melting Point (oC)		-	-	-
Boiling Point (oC)		-	-	-
Degradation point (oC)		-	-	-
Flashpoint (oC)		-	-	-
Octanol-water partition coefficient at pH 7, 20oC	P	6.92 X 1003	Calculated	-
	Log P	3.84	G4	High
Bulk density (g ml-1)/Specific gravity		0.95	L3	-
Dissociation constant (pKa) at 25oC		-	-	-
		Note:
Vapour pressure at 25oC (mPa)		1390	G4	Volatile
Henry's law constant at 25oC (Pa m3 mol-1)		3.13	V3	Moderately volatile
Henry's law constant at 20oC (dimensionless)		1.29 X 10-03	Calculated	Volatile
GUS leaching potential index		1.91	Calculated	Transition state
SCI-GROW groundwater index (µg l-1) for a 1 kg ha-1 or 1 l ha-1 application rate	Value	5.14 X 10-02	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)	16	L3	Non-persistent
	DT50 (lab at 20oC)	12	F3	Non-persistent
	DT50 (field)	-	-	-
	DT90 (lab at 20oC)	-	-	-
	DT90 (field)	-	-	-
	Note	Best available data
Aqueous photolysis DT50 (days) at pH 7	Value	-	-	-
	Note	-
Aqueous hydrolysis DT50 (days) at 20oC and pH 7	Value	-	-	-
	Note	-
Water-Sediment DT50 (days)		-	-	-
Water phase only DT50 (days)		-	-	-

Soil adsorption and mobility:

Property		Value	Source/Quality Score/Other Information	Interpretation
Linear	Kd	-	W3	Moderately mobile
	Koc	260
	Notes and range	-
Freundlich	Kf	-	-	-
	Kfoc	-
	1/n	-
	Notes and range	-
pH sensitivity		-

Key metabolites:

Metabolite		Formation Medium	Estimated Maximum Occurrence Fraction	91/414 Relevancy
mercaptan		Soil		-

ECOTOXICOLOGY

Property		Value	Source/Quality Score/Other Information	Interpretation
Bio-concentration factor	BCF	366	Q2 Estimated	Threshold for concern
	CT50 (days)	Not available		-
Bioaccumulation potential		-	Calculated	Moderate
Mammals - Acute oral LD50 (mg kg-1)		1500	L3 Rat	Moderate
Mammals - Short term dietary NOEL	(mg kg-1)	32	L3 Rat	High
	(ppm diet)	-		-
Birds - Acute LD50 (mg kg-1)		14500	G3 Colinus virginianus	Low
Birds - Short term dietary (LC50/LD50)		-	-	-
Fish - Acute 96 hour LC50 (mg l-1)		4.6	L3 Oncorhynchus mykiss	Moderate
Fish - Chronic 21 day NOEC (mg l-1)		-	-	-
Aquatic invertebrates - Acute 48 hour EC50 (mg l-1)		1.8	F2 Daphnia magna	Moderate
Aquatic invertebrates - Chronic 21 day NOEC (mg l-1)		-	-	-
Aquatic crustaceans - Acute 96 hour LC50 (mg l-1)		3.8	F3 Americamysis bahia	Moderate
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)		14	F3 Lemna gibba	Low
Algae - Acute 72 hour EC50, growth (mg l-1)		0.54	F2 Pseudokirchneriella subcapitata, 5 day	Moderate
Algae - Chronic 96 hour NOEC, growth (mg l-1)		-	-	-
Honeybees - Acute 48 hour LD50 (µg bee-1)		11	L3	Moderate
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)		1500	L3 Rat	Moderate
Mammals - Dermal LD50 (mg kg-1 body weight)		-	-	-
Mammals - Inhalation LC50 (mg l-1)		-	-	-
Other Mammal toxicity endpoints		-		-
ADI - Acceptable Daily Intake (mg kg-1bw day-1)		-	-	-
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		-	-	-
Exposure Routes	Public	-
	Occupational	-
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		[Moderately 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		[Xn - Harmful: R22], [N - Dangerous for the environment: R51, R53]
EC Safety Classification		S2, S61
WHO Classification		O	-	Obsolete substance
US EPA Classification (formulation)		III	-	Caution - Slightly toxic
UN Number		-
Waste disposal & packaging		-

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