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EC number: 635-156-4 | CAS number: 109293-98-3
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Toxicity to terrestrial plants
Administrative data
Link to relevant study record(s)
Description of key information
The minimum EC25 value calculated during a study with diflufenzopyr sodium salt was 0.00027 lb A.E./A for turnip shoot weight during the vegetative vigor phase. The lowest NOEC was determined during vegetative vigor phase was determined to be 0.00060 lb A.E./A (tomato, turnip, root weight, shoot length, shoot weight and root weight).
Key value for chemical safety assessment
Additional information
In the study the toxicity of the test substance to ten plant species during three life stages (seed germination, seedling emergence and vegetative growth) was investigated in accordance with EPA Subdivision J Guidelines, 122-1 and 123 -1. The plant species tested included four monocotyledons: corn (Zea mays), oat (Avena sativa), onion (Allium cepa) and perennial ryegrass (Lolium perenne); and six dicotyledons: cabbage (Brassica oleracea), cucumber (Cucumis sativus), lettuce (Lactuca sativa), soybean (Glycine max), tomato (Lycopersicon esculentum) and turnip (Brassica rapa). Toxic effects were quantified during each phase of the study and are reported as EC25 and EC50 values, including a No-Observed-Effect Concentration (NOEC) for each species. The minimum EC25 value calculated during this study was 0.00027 lb A.E./A for turnip shoot weight during the vegetative vigor phase. This value is approximately 0.14% of the maximum recommended application rate of 0.20 lb A.E./A for the test substance. The lowest EC25 value during the seed germination phase was determined to be 0.0031 lb A.E./A for cabbage radicle length. The lowest EC25 value during the seedling emergence phase was determined to be 0.0014 lb A.E./A for lettuce shoot length.
The correspondent NOEC values were determined to be: 0.00060 lb A.E./A (turnip, vegetative vigor phase, shoot weight), 0.0025 lb A.E./A (cabbage, seed germination phase, radicle length), 0.00034 lb A.E./A (lettuce, seedling emergence phase, shoot length).
The lowest NOEC was determined during seed germination phase was determined to be 0.0025 lb A.E./A (cabbage, radicle length). The lowest NOEC was determined during seedling emergence phase was determined to be 0.00034 lb A.E./A (lettuce, shoot length).
The lowest NOEC was determined during vegetative vigor phase was determined to be 0.00060 lb A.E./A (tomato, turnip, root weight, shoot length, shoot weight and root weight).
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