PHYSICAL CHEMISTRY
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 V.p. 4 10-3 ATXht981131 mPaATXht0 (21 ) KOW logP = 5.0 (ATXht981151 pHATXht0 7) S.g./density 1.20 (23 ) Solubility In water 0.024 g/l (ATXht981151 pHATXht0 7, 25).
light yellow crystalline powder; melting temperature: 141-146 C; soluble in acetone and methanol, slightly soluble in water, insoluble in hexane; stability: stable under normal storage conditions.
Non-systemic insecticide which penetrates leaf tissues by translaminar movement. Paralyses the Lepidoptera, which stop feeding within hours of ingestion, and die 2-4 dat. For control of Lepidoptera such as armyworm, bollworm, cutworm, cole moth, cabbage caterpillar, Mite, Prodenia litura (Fabricius) and so on harmful insects in many kinds of crops including vegetables, fruit, brassicas, cotton, tobacco and pine trees.
Mode of action Non-systemic insecticide which penetrates leaf tissues by translaminar movement. Paralyses the lepidoptera, which stop feeding within hours of ingestion, and die 2-4 dat. 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.
NOMENCLATURE 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
Content&formulation: 70%TC;2%EC,5%WDG CAS No.:119791-41-2(B1a);137335-79-6(B1b) Molecular Formula:C49H75NO13(emamectin B1a) + C48H73NO13(emamectin B1b). Specification for Emamectin 70%TC ITEMSSTANDARDS AppearanceWhite to beige powder Content of a.i.70%min B1a/B1b 20.0min Water2.0%max pH4.0~8.0 Acetone insoluble.5%max
Non-systemic insecticide which penetrates leaf tissues by translaminar movement. Paralyses the Lepidoptera, which stop feeding within hours of ingestion, and die 2-4 dat. For control of Lepidoptera such as armyworm, bollworm, cutworm, cole moth, cabbage caterpillar, Mite, Prodenia litura (Fabricius) and so on harmful insects in many kinds of crops including vegetables, fruit, brassicas, cotton,and pine trees.
Yellow or light yellow powder (b1>65%) 25kg fibre drum ü0ü10ü6Ñ75ü0ä3í8inside . Packageü0ü10ü6Ñ75ü0ü10ü6Ñ921kg/bagü0ü10ü6Ñ75ü0ü10ü6Ñ78.
Insecticide
Emamectin benzoate(CAS:137512-74-4)
