Queen-(Quinalphose 25% EC)

NOMENCLATURE:- Common name quinalphos (BSI, E-ISO, (m) F-ISO); chinalphos ((m) France)
IUPAC name O,O-diethyl O-quinoxalin-2-yl phosphorothioate
Chemical Abstracts name O,O-diethyl O-2-quinoxalinyl phosphorothioate
CAS RN [13593-03-8] EEC no. 237-031-6 Development codes Bay 77 049 (Bayer); SAN 6538; SAN 6626 (both Sandoz) Official codes ENT 27 394
PHYSICAL CHEMISTRY:- Mol. wt. 298.3 M.f. C12H15N2O3PS Form Colourless crystals. M.p. 31-32 ºC B.p. 142 ºC/0.0003 mmHg (decomp.) V.p. 0.346 mPa (20 ºC) KOW logP = 4.44 (23 ºC, 10-100 ppm level) S.g./density 1.235 (20 ºC) Solubility In water 17.8 mg/l (22-23 ºC).

APPLICATIONS:- Biochemistry Cholinesterase inhibitor. Mode of action Insecticide and acaricide with contact and stomach action. By penetrating the plant tissues through translaminar action, exhibits a systemic effect.