See All ProductsThiamethoxam




For use on citrus, cole crops, corn, cotton, deciduous, leafy and fruity vegetables, potatoes, rice, soybeans, tobacco, beans, cereals, cotton, maize, oilseed rape, peanuts, peas, potatoes, rice, sorghum, sugar beets, sunflower.


Flowable concentrate for seed treatment, granules, suspension concentrate, water-dispersible granules, water-dispersible powder for slurry seed treatment.


Common Names

Thiamethoxam (ISO, BSI); Thiaméthoxame (ISO-F)

Exp. Code Number

CGA 293343 (Syngenta)

CAS Code




(EZ)-3-(2-chlorothiazol-5-ylmethyl)-5-methyl-1,3,5-oxadiazinan-4-ylidene(nitro)amine (IUPAC); 3-[(2-chloro-5-thiazolyl)methyl]tetrahydro-5-methyl-N-nitro-4H-1,3,5-oxadiazin-4-imine (CAS)



Molecular Formula


Mode of Action / Resistance Management

Chemical Group


Mode of Action

nicotinic acetylcholine receptor (nAChR) agonists

Action Group

IRAC Group 4A

Environmental Guidelines


Fish: LC50 (96 h) >100 mg/l (rainbow trout), >114 mg/l (bluegill sunfish). Bird: LD50 576 mg/kg (mallard ducks), 1552 mg/kg (bobwhite quail); Dietary LC50 >5200 mg/kg (bobwhite quail and mallard ducks). Bee: LD50 for honeybees (oral) 0.005 µg/bee, (contact) 0.024 µg/bee.

Water Solubility

4.1 g/l at 25°C

Safety Guidelines

Signal Word


Toxicity Class



(Rat): Oral LD50 1563 mg/kg; Dermal LD50 >2000 mg/kg; Inhalation LC50 (4 h) >3720 mg/m3.

Handling/Storage Caution

Store the material in a well-ventilated, secure area out of the reach of children and domestic animals. Do not store food, beverages, or tobacco products in the storage area. Do not eat, drink, use tobacco where there is a potential for exposure to the material. Wash thoroughly with soap and water after handling

Spill Control/Cleanup

Control spill at its source and contain to prevent it from spreading, contaminating soil, or entering sewage and drainage systems or any body of water. Clean up spills immediately. Solid: sweep up material and place in compatible disposal container. Liquid: cover entire spill with absorbing material and place into disposal container. Scrub area with hard water detergent. Pick up wash liquid with additional absorbent and place into disposal container. Seal container and arrange for disposition

Product/Waste Disposal

Do not reuse product containers. Dispose of product containers, waste containers, and residues according to local, state, and federal health and environmental regulations

Protective Clothing

Chemical-resistant footwear plus socks. Long-sleeved shirt and long pants. Chemical-resistant gloves. Protective eyewear.

Emergency Guidelines

First Aid

Get medical aid.