Pymetrozine 98%TC,25%SC,25%WP (CAS NO.:123312-89-0)

Common Name

Pymetrozine

Chemical name

(E)-4,5-Fihydro-6-methyl-4-((3-pyridinylmethylene)amino)-1,2,4-triazin-3(2H)-one

Molecular Formula

C10H11N5O

Molecular Weight

217.23

CAS Registry Number

123312-89-0

Properties:

1) Appearance: colorless crystals
2) Melting point: 217oC
3) Vapor pressure: <4 x 10-3mPa (25oC)
4) KOWlogP: -0.18
5) Henry: <3.0 x 10-6Pa m3 mol-1 (calc.)
6) S.g./density: 1.36 (20oC)
7) Solubility:  a) In water: 0.29g/L (pH 6.5. 25oC) b)
In ethanol 2.25, hexane <0.001 (both in g/l. 20oC)
8) Stability: stable in air, hydrolysis DT50 4.3 h (pH 1), 25d (pH

Uses:

Insecticide selective against homoptera, causing them to stop feeding.
a) Control of aphids and whitefly in vegetables, potatoes, ornamentals, cotton, deciduous and citrus fruit, tobacco, hops; both juvenile and adult stages are susceptible. Also for control of plant hoppers in rice
b) Application rates vary from 150g/ha on potatoes to 200 - 300g/ha on ornamentals, tobacco and cotton; 10 - 30g/hl on vegetables

Toxicity:

Oral: acute oral LD50 for rats 5820mg/kg

2) Skin and eyes: acute percutaneous LD50 for rats >2000mg/kg. Non-irritating
to the skin and eyes (rabbits). Not a skin sensitiser to guinea pigs.
3) Inhalation: LC50 (4h) >1800mg/m3 air

Type of formulation:

1) Appearance: white to slightly yellow powder  
2) a.i. content: >=98%  
3) Water: <=1.0%
4) PH: 6 – 9                          
5) Formulation types: WP; WG

Packing Details

25kg/plastic woven bag or cardboard drum lined with plastic bag