Products
EMAMECTIN BENZOATE
Insecticide
NOMENCLATUREemamectin benzoate
CAS RN [155569-91-8]
Common name emamectin (BSI, pa E-ISO, ANSI); emamectine
((f) pa F-ISO)
IUPAC name A mixture containing 90% of (10E,14E,16E,22Z)-(1R,4S,5'S,6S,6'R,8R,12S,13S,20R,21R,24S)-6'-[(S)-sec-butyl]-21,24-dihydroxy-5',11,13,22-tetramethyl-2-oxo-3,7,19-trioxatetracyclo[15.6.1.14,8.020,24]pentacosa-10,14,16,22-tetraene-6-spiro-2'-(5',6'-dihydro-2'H-pyran)-12-yl
2,6-dideoxy-3-O-methyl-4-O-(2,4,6-trideoxy-3-O-methyl-4-methylamino-a-L-lyxo-hexopyranosyl)-a-L-arabino-hexopyranoside
and 10% of (10E,14E,16E,22Z)-(1R,4S,5'S,6S,6'R,8R,12S,13S,20R,21R,24S)-21,24-dihydroxy-6'-isopropyl-5',11,13,22-tetramethyl-2-oxo-3,7,19-trioxatetracyclo[15.6.1.14,8.020,24]pentacosa-10,14,16,22-tetraene-6-spiro-2'-(5',6'-dihydro-2'H-pyran)-12-yl
2,6-dideoxy-3-O-methyl-4-O-(2,4,6-trideoxy-3-O-methyl-4-methylamino-a-L-lyxo-hexopyranosyl)-a-L-arabino-hexopyranoside
PHYSICAL CHEMISTRY
emamectin benzoate
Composition A mixture of emamectin B1a (≥90%) and emamectin
B1b (≤10%), as their benzoate salts. Mol. wt. 1008.3
(B1a); 994.2 (B1b) M.f. C56H81NO15 (B1a); C55H79NO15
(B1b) Form White to off-white powder. M.p. 141-146 °C V.p. 4 × 10-3
mPa (21 °C) KOW logP = 5.0 (pH 7) S.g./density 1.20
(23 °C) Solubility In water 0.024 g/l (pH 7, 25°C).
emamectin benzoate
Mode of action Non-systemic insecticide which penetrates leaf tissues by translaminar movement. Uses For control of Lepidoptera on vegetables, brassicas and cotton, at up to 16 g/ha, and in pine trees, at 5-25 g/ha. Formulation types EC; SG.