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
Human health Low alert
Warning: Significant data are missing
GENERAL INFORMATION
Description
An acaricide used for the control of mites and ticks especially those resistant to organochlorines, organophosphates and carbamates
Example manufacturers & suppliers of products using this active now or historically
Senzhuo Industry Co. Ltd.
Unilong Industry Co. Ltd.
Lori Industry Co. Ltd
Example products using this active
Tifatol
Xymiazol
Besuntol
Cymiazole
Formulation and application details
Typically formulated as a granulate for dissolving in water and using topically. For control Varroa mites it is often dripped directly on to bee pathways.
Commercial production
The production of cymiazol hydrochloride begins with the synthesis of its core structure, an iminophenyl thiazolidine derivative. This typically starts with a 2,4-dimethylphenyl precursor, which undergoes a condensation reaction with a thiazole ring system to form the key imine linkage that defines cymiazol’s activity. The resulting base compound, cymiazole, is then reacted with hydrochloric acid to form the hydrochloride salt, enhancing its solubility and stability for veterinary use.
Impact on climate of production and use
Published GHG data is not available for most pharmaceuticals. However, according to industry, global averages suggest producing 1 kg of a typical active pharmaceutical ingredient can range from 10 to 100 kg CO₂e for small molecule drugs and potentially up to 1000 kg CO₂e for complex biologicals such as vaccines, depending on the drug type, its formulation, complexity of synthesis, solvent recovery, and energy sources used.
ENVIRONMENTAL FATE
Property
Value
Source; quality score; and other information
Interpretation
Solubility - In water at 20 °C (mg l⁻¹)
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Solubility - In organic solvents at 20 °C (mg l⁻¹)
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Melting point (°C)
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Boiling point (°C)
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Degradation point (°C)
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Flashpoint (°C)
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Octanol-water partition coefficient at pH 7, 20 °C
P
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Log P
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Fat solubility of residues
Solubility
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Data type
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Density (g ml⁻¹)
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Dissociation constant pKa) at 25 °C
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Vapour pressure at 20 °C (mPa)
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Henry's law constant at 25 °C (Pa m³ mol⁻¹)
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Volatilisation as max % of applied dose lost
From plant surface
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From soil surface
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Maximum UV-vis absorption L mol⁻¹ cm⁻¹
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Surface tension (mN m⁻¹)
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Degradation
Property
Value
Source; quality score; and other information
Interpretation
General biodegradability
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Soil degradation (days) (aerobic)
DT₅₀ (typical)
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DT₅₀ (lab at 20 °C)
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DT₅₀ (field)
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DT₉₀ (lab at 20 °C)
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DT₉₀ (field)
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DT₅₀ modelling endpoint
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Note
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Dissipation rate RL₅₀ (days) on plant matrix
Value
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Note
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Dissipation rate RL₅₀ (days) on and in plant matrix
Value
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Note
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Aqueous photolysis DT₅₀ (days) at pH 7
Value
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Note
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Aqueous hydrolysis DT₅₀ (days) at 20 °C and pH 7
Value
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Note
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Water-sediment DT₅₀ (days)
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Water phase only DT₅₀ (days)
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Sediment phase only DT₅₀ (days)
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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
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Soil adsorption and mobility
Property
Value
Source; quality score; and other information
Interpretation
Linear
Kd (mL g⁻¹)
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Koc (mL g⁻¹)
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Notes and range
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Freundlich
Kf (mL g⁻¹)
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Kfoc (mL g⁻¹)
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1/n
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Notes and range
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pH sensitivity
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Fate indices
Property
Value
Source; quality score; and other information
Interpretation
GUS leaching potential index
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SCI-GROW groundwater index (μg l⁻¹) for a 1 kg ha⁻¹ or 1 l ha⁻¹ application rate
Value
Cannot be calculated
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Note
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Potential for particle bound transport index
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Potential for loss via drain flow
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Photochemical oxidative DT₅₀ (hrs) as indicator of long-range air transport risk
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
Human health
Warning:
