Products
THIAMETHOXAM
Insecticide
neonicotinoid
NOMENCLATURE
Common name thiamethoxam (BSI, pa ISO)
IUPAC name 3-(2-chloro-1,3-thiazol-5-ylmethyl)-5-methyl-1,3,5-oxadiazinan-4-ylidene(nitro)amine
Chemical Abstracts name 3-[(2-chloro-5-thiazolyl)methyl]tetrahydro-5-methyl-N-nitro-4H-1,3,5-oxadiazin-4-imine
CAS RN [153719-23-4] Development codes CGA
293343 (Ciba-Geigy)
PHYSICAL CHEMISTRY
Mol. wt. 291.7 M.f. C8H10ClN5O3S Form Crystalline
powder. M.p. 139.1 °C V.p. 6.6 ´ 10-6
mPa (25 °C) KOW logP = -0.13 (25 °C) Henry 4.70 × 10-10
Pa m3 mol-1 (calc.) Solubility In water 4.1 g/l (25 °C).
APPLICATIONS
Biochemistry Agonist of the nicotinic acetylcholine receptor,
affecting the synapses in the insect central nervous system. Mode
of action Insecticide with contact, stomach and systemic activity.
Rapidly taken up into the plant and transported acropetally in the xylem. Uses Under
develoment for control of aphids, whitefly, thrips, ricehoppers, ricebugs,
mealybugs, white grubs, Colorado potato beetle, flea beetles, wireworms, ground
beetles, leaf miners and some lepidopterous species, at application rates from
10 to 200 g/ha (R. Senn et al., loc. cit.). Major crops for foliar and soil
treatments are cole crops, leafy and fruity vegetables, potatoes, rice, cotton,
deciduous fruit, citrus, tobacco and soya beans; for seed treatment use, maize,
sorghum, cereals, sugar beet, oilseed rape, cotton, peas, beans, sunflowers,
rice and potatoes. Formulation types FS; GR, SC, WG,
WS