Ethaboxam is a fungicide used to control soil-borne pathogens. It has a moderate aqueous solubility and is considered to be volatile. Although it has a low mammalian toxicity it has a high potential to bioaccumulate. It is moderately toxic to birds, most aquatic species, honeybees and earthworms.
Hazard 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. These hazard alerts do not take account of usage patterns or exposure, thus do not represent risk.
Environmental fate
Ecotoxicity
Human health
Environmental fate Moderate alert: Drainflow: Slightly mobile
Considered obsolete but may be available in some countries
Introduction & key dates
1999, Korea first registered
Example manufacturers & suppliers of products using this active now or historically
LG Life Sciences
Valent
Sumitomo
Nippon soda
Example products using this active
LGC-30473 10% SC
Guardian
Intego Solo
Ethofin
Formulation and application details
Usually supplied as an aqueous solution or suspension concentrate. Often used as a seed dressing.
Commercial production
Commercial production of ethaboxam involves a multi-step chemical synthesis centered around its thiazole carboxamide structure. The process typically begins with the preparation of key intermediates such as thiazole derivatives and cyano-substituted thiophene compounds. These are then coupled through amide bond formation, using reagents that facilitate selective substitution and maintain the molecule’s chiral integrity.
Impact on climate of production and use
Data for the amount of life cycle GHGs produced by ethaboxam are not available in the public domain. However, whilst estimates vary, more general data suggests that between 11 and 30 kilograms of CO₂e is emitted per kilogram of fungicide produced.
R4 R = Peer reviewed scientific publications 4 = Verified data
Non-persistent
DT₅₀ (lab at 20 °C)
17
R4 R = Peer reviewed scientific publications 4 = Verified data
Non-persistent
DT₅₀ (field)
-
-
-
DT₉₀ (lab at 20 °C)
-
-
-
DT₉₀ (field)
-
-
-
DT₅₀ modelling endpoint
-
-
-
Note
-
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
-
-
-
Note
-
Aqueous hydrolysis DT₅₀ (days) at 20 °C and pH 7
Value
-
-
-
Note
-
Water-sediment DT₅₀ (days)
-
-
-
Water phase only DT₅₀ (days)
-
-
-
Sediment phase only DT₅₀ (days)
-
-
-
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)
-
Q2 Q = Miscellaneous data from online sources 2 = Unverified data of unknown source
Slightly mobile
Koc (mL g⁻¹)
693
Notes and range
Estimated
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
1.43
Calculated
Low leachability
SCI-GROW groundwater index (μg l⁻¹) for a 1 kg ha⁻¹ or 1 l ha⁻¹ application rate
Value
2.95 X 10-02
Calculated
-
Note
-
Potential for particle bound transport index
Low
Calculated
-
Potential for loss via drain flow
Slightly mobile
Calculated
-
Photochemical oxidative DT₅₀ (hrs) as indicator of long-range air transport risk
-
-
-
Bio-concentration factor
BCF (l kg⁻¹)
Low risk
Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source
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
