Spirotetramat-d5

Spirotetramat-d₅ is intended for use as an internal standard for the quantification of spirotetramat by GC- or LC-MS. Spirotetramat is an insecticide.¹ It is active against C. pyri nymphs in vitro (LC₅₀ = 6.51-12.53 mg AI/L) and induces mortality of C. pyri nymphs in European pear (P. communis) fields by 99.2% 15 days after application at a concentration of 27 g/hectare. Spirotetramat also reduces O. insidiosus embryonic viability and nymph survival.² It exhibits aquatic toxicity, increasing protein levels of glutathione peroxidase (GPX) and superoxide dismutase (SOD), decreasing levels of malondialdede (MDA), and inducing lethality in Chinese toad (B. gargarizans) tadpoles (LC₅₀ = 6.98 mg/L).³ Formulations containing spirotetramat have been used in the control of insects in agriculture.