triclopyr triethylammonium ** triclopyr triethylamine ** Translations

---

Environmental Fate - Ecotoxicology - Human Health - A to Z Index - Home

GENERAL INFORMATION
for triclopyr triethylammonium

Description: A herbicide for perennial broad-leaved and woody weed control mainly on uncultivated areas

Example pests controlled: Alder; Blackberry; Boxelder; Buckthorn; Cottonwood; Gorse; Hawthorn; Mulberry; Sassafras; Wild rose; Burdock; Curly dock; Canada thistle; Mustard; Lambsquarter

Example applications: Uncultivated areas; Grassland; Plantations; Rangeland; Right-of-way; Industrial sites; Ornamental turf; Rice

Efficacy & activity: -

Availability status: Current

Introduction & key dates: 1979; first registered

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

Status	Approved
Dossier rapporteur/co-rapporteur	Poland/Hungary
Date inclusion expires	30/04/2020
EU Candidate for substitution (CfS)	No
Listed in EU database	Yes

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

HR

HU

IE

IT

LT

LU

LV

MT

NL

PL

PT

RO

SE

SI

SK

UK

Chemical structure:

Isomerism	-
Chemical formula	C13H19Cl3N2O3
Canonical SMILES	CCN(CC)CC.C1=C(C(=NC(=C1Cl)Cl)OCC(=O)O)Cl
Isomeric SMILES	No data
International Chemical Identifier key (InChIKey)	ROKVVMOXSZIDEG-UHFFFAOYSA-N
International Chemical Identifier (InChI)	InChI=1S/C7H4Cl3NO3.C6H15N/c8-3-1-4(9)7(11-6(3)10)14-2-5(12)13;1-4-7(5-2)6-3/h1H,2H2,(H,12,13);4-6H2,1-3H3
2D structure diagram/image available?	Yes

General status:

Pesticide type	Herbicide
Substance group	Pyridine compound
Minimum active substance purity	-
Known relevant impurities	-
Substance origin	-
Mode of action	Selective, systemic, absorbed through roots and foliage. Synthetic auxin.
CAS RN	57213-69-1
EC number	260-625-1
CIPAC number	-
US EPA chemical code	116002
PubChem CID	42163
Molecular mass (g mol-1)	357.66
PIN (Preferred Identification Name)	[(3,5,6-trichloropyridin-2-yl)oxy]acetic acid—N,N-diethylethan-1-amine (1/1)
IUPAC name	3,5,6-trichloro-2-pyridyloxyacetic acid - triethylamine (1:1)
CAS name	2-[(3,5,6-trichloro-2-pyridinyl)oxy]acetic acid compound with N,N-diethylethanamine (1:1)
Other status information	Potential groundwater pollutant
Relevant Environmental Water Quality Standards	-
Herbicide Resistance Classification (HRAC)	O
Herbicide Resistance Classification (WSSA)	4
Insecticide Resistance Classification (IRAC)	Not applicable
Fungicide Resistance Classification (FRAC)	Not applicable
Examples of recorded resistance	-
Physical state	Clear fluffy solid
Related substances & organisms	clopyralid

Formulations:

Property	Value
Example manufacturers & suppliers of products using this active now or historically	Dow AgroSciences
Example products using this active	Garlon 3A EC Grandstand CA Redeem
UK LERAP status	Buffer probably required in UK - see product label
Formulation and application details	Usually supplied as an emulsifiable concentrate. Not approved in the UK for aerial application.

ENVIRONMENTAL FATE
for triclopyr triethylammonium

Property		Value	Source/Quality Score/Other Information	Interpretation
Solubility - In water at 20oC (mg l-1)		412000	F4	High
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	1.70 X 1001	Calculated	-
	Log P	1.23	F4	Low
Bulk density (g ml-1)/Specific gravity		-	-	-
Dissociation constant (pKa) at 25oC		-	-	-
		Note:
Vapour pressure at 20oC (mPa)		-	-	-
Henry's law constant at 25oC (Pa m3 mol-1)		-	-	-
GUS leaching potential index		3.68	Calculated	High leachability
SCI-GROW groundwater index (μg l-1) for a 1 kg ha-1 or 1 l ha-1 application rate	Value	5.06 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
General biodegradability		-
Soil degradation (days) (aerobic)	DT50 (typical)	23.03	A5	Non-persistent
	DT50 (lab at 20oC)	23.05	A5	Non-persistent
	DT50 (field)	-	-	-
	DT90 (lab at 20oC)	84.76	A5	-
	DT90 (field)	-	-	-
	DT50 modelling endpoint	-	-	-
	Note	EU 2018 dossier DT50 (normalised) range 9.17-49.12 days, DT90 (actual) range 30.5-163 days, Soils=10
Dissipation rate RL50 on plant matrix	Value	-	-	-
	Note	-
Dissipation rate RL50 on and in plant matrix	Value	-	-	-
	Note	-
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	-	F3	Mobile
	Koc	20
	Notes and range	-
Freundlich	Kf	-	-	-
	Kfoc	-
	1/n	-
	Notes and range	-
pH sensitivity		-

Key metabolites:

Metabolite		Formation medium	Estimated maximum occurrence fraction	1107/2009 relevancy
triclopyr		Soil	0.853	Major fraction; Relevant

Other known metabolites:

Metabolite name and reference	Aliases	Formation medium / Rate	Estimated maximum occurrence fraction	Metabolising enzymes
3,5,6-trichloro-2-methoxypyridine	-	Soil; Plant	-	-

ECOTOXICOLOGY
for triclopyr triethylammonium

Property		Value	Source/Quality Score/Other Information	Interpretation
Bio-concentration factor	BCF (l kg-1)	-	-	-
	CT50 (days)	-		-
Mammals - Acute oral LD50 (mg kg-1)		> 2000	Q3 Rat	Low
Mammals - Short term dietary NOEL	(mg kg-1)	-	-	-
	(ppm diet)	-		-
Birds - Acute LD50 (mg kg-1)		> 735	F3 Anas platyrhynchos	Moderate
Birds - Short term dietary (LC50/LD50)		-	-	-
Fish - Acute 96 hour LC50 (mg l-1)		> 471	F4 Lepomis macrochirus	Low
Fish - Chronic 21 day NOEC (mg l-1)		-	-	-
Aquatic invertebrates - Acute 48 hour EC50 (mg l-1)		> 104.5	F4 Daphnia magna	Low
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)		48.0	F4 Lemna gibba	Low
Non-target plants		-	-	-
		-	-	-
Algae - Acute 72 hour EC50, growth (mg l-1)		-	-	-
Algae - Chronic 96 hour NOEC, growth (mg l-1)		-	-	-
Honeybees (Apis spp.)	Contact acute LD50 (worst case from 24 , 48 and 72 hour values - μg bee-1)	> 100	F3	Low
	Oral acute LD50 (worst case from 24 , 48 and 72 hour values - μg bee-1)	-	-	-
	Unknown mode acute LD50 (worst case from 24 , 48 and 72 hour values - μg bee-1)	-	-	-
Bumblebees (Bombus spp.)	Contact acute LD50 (worst case from 24 , 48 and 72 hour values - μg bee-1)	-	-	-
		-
	Oral acute LD50 (worst case from 24 , 48 and 72 hour values - μg bee-1)	-	-	-
		-
Mason bees (Osmia spp.)	Contact acute LD50 (worst case from 24 , 48 and 72 hour values - μg bee-1)	-	-	-
	Oral acute LD50 (worst case from 24 , 48 and 72 hour values - μg bee-1)	-	-	-
Other pollinators (1)	Acute LD50 (worst case from 24 , 48 and 72 hour values - μg insect-1)	-	-	-
	Mode of exposure	-
Other pollinators (2)	Acute LD50 (worst case from 24 , 48 and 72 hour values - μg insect-1)	-	-	-
	Mode of exposure	-
Earthworms - Acute 14 day LC50 (mg kg-1)		146	F3 Eisenia foetida	Moderate
Earthworms - Chronic 14 day NOEC, reproduction (mg kg-1)		-	-	-
Other soil macro-organisms - e.g. Collembola	LR50 / EC50 / NOEC / % 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
for triclopyr triethylammonium

General:

Property		Value	Source/Quality Score/Other Information	Interpretation
Threshold of Toxicological Concern (Cramer Class)		High (class III)	-	-
Mammals - Acute oral LD50 (mg kg-1)		> 2000	Q3 Rat	Low
Mammals - Dermal LD50 (mg kg-1 body weight)		> 2000	Q3 Rabbit	-
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)		-	-	-
AAOEL - Acute Acceptable Operator Exposure Level (mg kg-1 bw day-1)		-	-	-
AOEL - Acceptable Operator Exposure Level - Systemic (mg kg-1bw day-1)		-	-	-
Dermal penetration studies (%)		-	-	-
Dangerous Substances Directive 76/464		-	-	-
Exposure Routes	Public	-
	Occupational	-
European MRLs		Click here for the EU MRL pesticide database
Drinking Water Standards		-	-	-
Drinking Water MAC (μg l-1)		-	-	-

Health issues:

Carcinogen	Genotoxic	Endocrine disrupter	Reproduction / development effects	Cholinesterase inhibitor	Neurotoxicant
	A0; B0; C0; D0; E3	-
Respiratory tract irritant	Skin irritant	Skin sensitiser	Eye irritant	Phototoxicant
-				-
General human health issues		Risk of serious damage to the eyes
Key: Genotoxicity A: Chromosome aberration (EFSA database) B: DNA damage/repair (EFSA database) C: Gene mutation (EFSA database) D: Genome mutation (EFSA database) E: Unspecified genotoxicity type (miscellaneous data source) 0: No data 1: Positive 2: Mixed/ambiguous results 3: Negative			Key: Other : Yes, known to cause a problem : No, known not to cause a problem : Possibly, status not identified - : No data found

Handling issues:

Property		Value	Source/Quality Score/Other Information	Interpretation
General		Incompatible with strong oxidising agents Highly flammable Corrosive
CLP classification 2013		Health: H317, H319, H315, H335, H336 Handling: H226 Environment: H411
EC Risk Classification		Xn - Harmful: R20/21/22, R41, R43 H - Handling risks: R11, R35 N - Dangerous for the environment: R51, R52, R53
EC Safety Classification		S2, S26, S35, S39
WHO Classification		III	-	Slightly hazardous
UN Number		-
Waste disposal & packaging		-

TRANSLATIONS
for triclopyr triethylammonium

Language	Name
English	triclopyr triethylammonium
French	-
German	-
Danish	-
Italian	-
Spanish	-
Greek	-
Slovenian	-
Polish	-
Swedish	-
Hungarian	-
Dutch	-

---

Record last updated: Sunday 05 May 2019
Contact: aeru@herts.ac.uk