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嘧霉胺 53112-28-0 98%TC; 95%TC; 40%SC; 40%WP; 20%SC

Pyrimethanil  嘧霉胺

Introduction: Pyrimethanil is a broad spectrum fungicide often applied to seeds. It inhibits methionine biosynthesis, thus affecting protein formation and subsequent cell division. Pyrimethanil works best on young fungus infestations.   

Common name: Pyrimethanil

Another name: 4,6-dimethyl-N-phenyl-2-pyrimidinamine; 4,6-dimethyl-N- phenylpyrimidin-2-amine; Pyrimethanil [ISO]; 2-Anilino-4,6-dimethylpyrimidine; etc.

Chemical name: N-(4,6-dimethylpyrimidin-2-yl)aniline

Empirical formula: C12H13N3

Structural formula:

Mol. Weight: 199.11 g/mol

CAS No.: 53112-28-0

Specifications

Leading Pyrimethanil supplier

Pyrimethanil 95% TC

Pyrimethanil 98% TC

Pyrimethanil 40% SC

Pyrimethanil 40% WP

Pyrimethanil 20% SC

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

Pyrimethanil FAO standard

Professional registration

HAZARDS IDENTIFICATION

Hazard statement(s)

H411 (100%): Toxic to aquatic life with long lasting effects.

Precautionary statement(s)

P273: Avoid release to the environment.

P391: Collect spillage.

P501: Dispose of contents/container to an approved waste disposal plant.

Supplemental Hazard Statements: none.

MAMMALIAN TOXICOLOGY

Acute toxicity: 1) Acute oral LD50 for rats is 4149 mg/kg. 2) Acute dermal LD50 for rats is >5000 mg/kg. 3) Acute inhalation toxicity LC50 (4 h) for rats is >1.98 mg/L (nose only). 4) Skin irritation: Non-irritating to skin (rabbits). 5) Eye irritation: Slightly irritating to eyes (rabbits). 6) Skin sensitization for guinea pig: Not a sensitizer (Magnussen & Kligman and Buehler test).

NOEL: (2 y) for rats is 17 mg/kg/day; (80 w) for mice is 20 mg/kg/day; (1 y) for dogs is 80 mg/kg/day. Other Not carcinogenic. Not genotoxic.

ADI (JMPR) 0-0.2 mg/kg b.w. [2007]

Classification:

WHO Classification: III (Slightly hazardous)

EC Risk Classification: N - Dangerous for the environment: R51, R53

US EPA Classification (formulation): IV (Caution - Not acutely 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 10.56 mg/l. Effects on aquatic invertebrates: Acute EC50 (48 h) for Daphnia magna is 2.9 mg/l. Effects on algae: Acute 72 hour EC50 for Raphidocelis subcapitata is 1.2 mg/l. Effects on bees: contact acute 48 hour LD50 is >100 μg/bee, oral acute 48 hour LD50 is >100 μg/bee. Effects on earthworms: Acute 14 day LC50 is 313 mg/kg.

ENVIRONMENTAL FATE

Animals Rapidly absorbed, extensively metabolised and rapidly excreted in all species examined. No evidence of accumulation, even on repeated dosing. Metabolism proceeds by oxidation to phenolic derivatives which are excreted as glucuronide or sulfate conjugates. Plants Little metabolism occurs in fruit; residues at maturity consist essentially of unchanged parent compound only. For this reason, a crop residue monitoring method has been developed for the direct determination of pyrimethanil itself. Soil/Environment DT50 in laboratory studies 27-82 d; field studies indicate rapid degradation, DT50 7-54 d. Koc 265-751. Low potential for leaching to groundwater; field studies show minimal movement of pyrimethanil into deeper soil layers. Pyrimethanil disappears rapidly from surface water and moderately adsorbs to the sediment, from which it is further degraded.                         

Usage: Pyrimethanil was introduced by Schering (now Bayer CropScience). It is a fungicide used to control fungal pathogens on fruit, vegetables and ornamentals.

Application: Biochemistry Proposed inhibitor of methionine biosynthesis, leading to inhibition of the secretion of enzymes necessary for infection. Mode of action Protectant (in Botrytis) and both protective and curative action (in Venturia). Uses Control of grey mould (Botrytis cinerea) on vines, fruit, vegetables and ornamentals. Control of leaf scab (Venturia inaequalis or V. pirina) on pome fruit. Phytotoxicity May be phytotoxic in closed systems at 380% r.h. on certain species.

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