Pymetrozine
  吡蚜酮
Introduction: Pymetrozine is a novel insecticide for the control of aphids and other sucking pests in cotton and represents a new class of control agents. The compound interferes in the feeding behaviour of insects and controls insects resistant to standard chemistry. Because of its unique mode of action, pymetrozine does not harm beneficial insects and is very useful in Integrated Pest Management (IPM) programs. The compound exhibits low acute toxicity to mammals and has favourable environmental properties. Use rates are 100-300 g a.i./ha. Full development is underway around the world.
Common name: Pymetrozine
Another name: Chess; Endeavor; Pymetrozin; Fulfill; Plenum; CGA 215944; UNII-F0G3V7874J; HSDB 7054; etc.
Chemical name: (E)-4,5-dihydro-6-methyl-4-(3-pyridylmethyleneamino)-1,2,4-triazin-3(2H)-one
Empirical formula: C10H11N5O
Structural formula:
Mol. Weight: 217.23 g/mol
CAS No.: 123312-89-0
Specifications
Leading Pymetrozine supplier
Pymetrozine 90% TC
Pymetrozine 95% TC
Pymetrozine 96% TC
Pymetrozine 25% WP
Pymetrozine 50% WDG
Packing:
BULK PACKING
Powder: 25kg/Bag, 25kg/Drum, 50kg/Drum etc.
Liquid: 200L/Drum, 20L/Drum, 10L/Drum etc.
SMALL PACKING
Powder: 1kg/Alu bag, 500g/Alu bag, 200g/Alu bag, 100g/Alu bag, 50g/Alu bag, 15g/Alu bag etc.
Liquid: 5L/Drum, 1L/Bottle, 500ml/Bottle, 250ml/Bottle, 100ml/Bottle, 50ml/Bottle etc.
Customerized packing label
Pymetrozine FAO standard
Professional registration
HAZARDS IDENTIFICATION
Hazard statement(s)
H332: Harmful if inhaled.
H351: Suspected of causing cancer.
H412: Harmful to aquatic life with long lasting effects.
Precautionary statement(s)
P201: Obtain special instructions before use.
P202: Do not handle until all safety precautions have been read and understood.
P261: Avoid breathing dust/fume/gas/mist/vapors/spray.
P271: Use only outdoors or in a well-ventilated area.
P273: Avoid release to the environment.
P281: Use personal protective equipment as required.
P304+P312: IF INHALED: Call a POISON CENTER/doctor/... if you feel unwell.
P304+P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P308 +P313: IF exposed or concerned: Get medical advice/attention.
P312: Call a POISON CENTER or doctor/... if you feel unwell.
P405: Store locked up.
P501: Dispose of contents/container to.
Supplemental Hazard Statements: none.
MAMMALIAN TOXICOLOGY
Acute toxicity: 1) Acute oral LD50 for rats is 5820 mg/kg. 2) Acute dermal LD50 for rats is >2000 mg/kg. 3) Acute inhalation toxicity LC50 (4 h) for rats is >1.8 mg/l. 4) Skin irritation: Non-irritating to skin (rabbits). 5) Eye irritation: Slightly irritating to eyes (rabbits). 6) Skin sensitization for guinea pig: Weakly sensitizing (maximization test).
NOEL: (2 y) for rats is 3.7 mg/kg/day, (1 y) for dogs is 3.1 mg/kg/day. Other Unlikely to be genotoxic. Unlikely to pose a carcinogenic risk to humans from the diet.
ADI (JMPR) 0-0.03 mg/kg b.w. [2014]
Classification:
WHO Classification: NL (Not listed)
EC Risk Classification: Carcinogen category 3: R40; Reproduction risk category 3: R62, R63; N - Dangerous for the environment: R52, R53
US EPA Classification (formulation): III (Caution - Slightly toxic)
ECOTOXICOLOGY
Effect on birds: Acute oral LD50 for Mallard is >2000 mg/kg. Effect on fish: Acute LC50 (96 h) for Rainbow trout is >100 mg/l. Effects on aquatic invertebrates: Acute EC50 (48 h) for Daphnia magna is 87 mg/l. Effects on algae: Acute 72 hour EC50 for Raphidocelis subcapitata is 21.6 mg/l. Effects on bees: Contact acute (48 h) LD50 is >200 μg/bee, Oral acute (48 h) LD50 is >117 μg/bee. Effects on earthworms: Acute 14 day LC50 is >250 mg/kg.
ENVIRONMENTAL FATE
Animals Quickly and efficiently eliminated (mainly via excreta) and extensively metabolised in all species tested (rats, farm animals), without accumulation in most major animal food products. The metabolic pathways are similar for all species. Pymetrozine is the relevant residue for assessing the consumer exposure to treated animal food products. Plants The basic degradation steps are similar in all investigated crops; pymetrozine is the only relevant compound for residue definition. Soil/Environment In soils, very rapidly and strongly adsorbed, with low mobility and low leaching potential. Soil DT50 2-69 d, DT90 55-288 d. Rapidly degraded in slightly acidic or sunlight-exposed surface water; DT50 in surface water (typical value) 7 d. Slightly volatile. Efficiently removed by direct photolysis and photochemically induced oxidation.
Usage: Pymetrozine was introduced by Ciba-Geigy Corporation. It is a novel azomethine insecticide suitable for use in integrated crop management to control aphids and other plant sucking pests.
Application: Biochemistry Novel, unidentified biochemistry. Mode of action Insecticide selective against Homoptera, causing them to stop feeding. Uses Control of aphids and whitefly in vegetables, potatoes, ornamentals, cotton, deciduous and citrus fruit, tobacco, hops; both juvenile and adult stages are susceptible. Also control of planthoppers in rice. Application rates vary from 150 g/ha on potatoes to 200-300 g/ha on ornamentals, tobacco and cotton; 10-30 g/hl on vegetables, fruit and hops.
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