Aminocyclopyrachlor is a herbicide that is not widely approved in the developed world. It is highly soluble in water, a low volatility and is moderately persistent in soil systems. Its persistence in aquatic systems will depend on local conditions. Based on its chemical properties there is a risk this chemical could leach to groundwater. It is not highly toxic to humans and tends to generally have a low to moderate toxicity to biodiversity.
Data alerts
The following alerts are based on the data in the tables below. An absence of an alert does not imply the substance has no implications for human health, biodiversity or the environment but just that we do not have the data to form a judgement.
Environmental fate
Ecotoxicity
Human health
Environmental fate High alert: GUS: High leachability; Drainflow: Mobile
Synthetic auxin readily absorbed by plant leaves and roots. Translocates in both the xylem and phloem and is thought to accumulate in the meristematic areas of the plant.
Example manufacturers & suppliers of products using this active now or historically
Du Pont
Example products using this active
Imprellis
DPX-MAT28
Formulation and application details
-
ENVIRONMENTAL FATE
Property
Value
Source; quality score; and other information
Interpretation
Solubility - In water at 20 °C (mg l⁻¹)
3130
E4 E = Manufacturers safety data sheets 4 = Verified data
High
Solubility - In organic solvents at 20 °C (mg l⁻¹)
-
-
-
Melting point (°C)
140.5
E4 E = Manufacturers safety data sheets 4 = Verified data
-
Boiling point (°C)
-
-
-
Degradation point (°C)
-
-
-
Flashpoint (°C)
-
-
-
Octanol-water partition coefficient at pH 7, 20 °C
P
3.31 X 10-03
Calculated
-
Log P
-2.48
P4 P = Other non-EU, UK or US Governments and Regulators 4 = Verified data
Low
Fat solubility of residues
Solubility
-
-
-
Data type
-
-
-
Density (g ml⁻¹)
1.47
E4 E = Manufacturers safety data sheets 4 = Verified data
-
Dissociation constant pKa) at 25 °C
4.6
E4 E = Manufacturers safety data sheets 4 = Verified data
-
-
Vapour pressure at 20 °C (mPa)
6.92 X 10-03
P4 P = Other non-EU, UK or US Governments and Regulators 4 = Verified data
Low volatility
Henry's law constant at 25 °C (Pa m³ mol⁻¹)
3.47 X 10-12
P4 P = Other non-EU, UK or US Governments and Regulators 4 = Verified data
Non-volatile
Volatilisation as max % of applied dose lost
From plant surface
-
-
-
From soil surface
-
-
-
Maximum UV-vis absorption L mol⁻¹ cm⁻¹
-
-
-
Surface tension (mN m⁻¹)
-
-
-
Degradation
Property
Value
Source; quality score; and other information
Interpretation
General biodegradability
-
Soil degradation (days) (aerobic)
DT₅₀ (typical)
31
P4 P = Other non-EU, UK or US Governments and Regulators 4 = Verified data
Moderately persistent
DT₅₀ (lab at 20 °C)
-
-
-
DT₅₀ (field)
-
-
-
DT₉₀ (lab at 20 °C)
-
-
-
DT₉₀ (field)
-
-
-
DT₅₀ modelling endpoint
-
-
-
Note
Literature data bare soil DT₅₀ 31days, turf DT₅₀ range 10.8-21 days; Manuufacterer data: DT₅₀ turf 37 to 103 days
Dissipation rate RL₅₀ (days) on plant matrix
Value
-
-
-
Note
-
Dissipation rate RL₅₀ (days) on and in plant matrix
Value
-
-
-
Note
-
Aqueous photolysis DT₅₀ (days) at pH 7
Value
1.2
P4 P = Other non-EU, UK or US Governments and Regulators 4 = Verified data
Moderately fast
Note
-
Aqueous hydrolysis DT₅₀ (days) at 20 °C and pH 7
Value
-
-
-
Note
-
Water-sediment DT₅₀ (days)
365
P3 P = Other non-EU, UK or US Governments and Regulators 3 = Unverified data of known source
Stable
Water phase only DT₅₀ (days)
450
P4 P = Other non-EU, UK or US Governments and Regulators 4 = Verified data
Stable
Air degradation
As this parameter is not normally measured directly, a surrogate measure is used: ‘Photochemical oxidative DT₅₀’. Where data is available, this can be found in the Fate Indices section below.
Decay in stored produce DT₅₀
-
Soil adsorption and mobility
Property
Value
Source; quality score; and other information
Interpretation
Linear
Kd (mL g⁻¹)
0.39
-
Mobile
Koc (mL g⁻¹)
24.0
Notes and range
Manufacturers data Kd range 0.03-2.05, Koc range 2.0-55 mL g⁻¹, soils=20
Freundlich
Kf (mL g⁻¹)
-
-
-
Kfoc (mL g⁻¹)
-
1/n
-
Notes and range
-
pH sensitivity
-
Fate indices
Property
Value
Source; quality score; and other information
Interpretation
GUS leaching potential index
3.91
Calculated
High leachability
SCI-GROW groundwater index (μg l⁻¹) for a 1 kg ha⁻¹ or 1 l ha⁻¹ application rate
Value
7.94 X 10-01
Calculated
-
Note
-
Potential for particle bound transport index
Low
Calculated
-
Potential for loss via drain flow
Mobile
Calculated
-
Photochemical oxidative DT₅₀ (hrs) as indicator of long-range air transport risk
-
-
-
Bio-concentration factor
BCF (l kg⁻¹)
3.162
P4 P = Other non-EU, UK or US Governments and Regulators 4 = Verified data
Low potential
CT₅₀ (days)
-
-
Known soil metabolites
None
Known groundwater metabolites
Metabolite
EC SANCO/221/2000 relevancy
ADI (mg kg⁻¹ bodyweight day⁻¹)
WHO drinking water guidance value (μg L⁻¹ day⁻¹)
cyclopropanecarboxylic acid
Relevancy unknown
-
-
Other known metabolites
Metabolite name and reference
Aliases
Formation medium / Rate
Estimated maximum occurrence fraction
cyclopropanecarboxylic acid
-
Surface water (aqueous photolysis)
-
(3-[5-cyclopropyl-I ,2,4-oxadiazol-3yl]-5-[ I -methylethyl]-imidazo ( 1,5-a )-19 quinoxalin-4[5H]-one)
panadiplon
Animals
-
ECOTOXICOLOGY
Terrestrial ecotoxicology
Property
Value
Source; quality score; and other information
Interpretation
Mammals - Acute oral LD₅₀ (mg kg⁻¹)
> 5000
E4 E = Manufacturers safety data sheets 4 = Verified data
Lewis, K.A., Tzilivakis, J., Warner, D. and Green, A. (2016) An international database for pesticide risk assessments and management. Human and Ecological Risk Assessment: An International Journal, 22(4), 1050-1064. DOI: 10.1080/10807039.2015.1133242
Environmental fate
Warning:
Ecotoxicity
Human health
