EMAMECTIN BENZOATE
Common name: Emamectin Benzoate
Other name: 4′′-Deoxy-4′′-epi-methylaminoavermectin B1; Epimethylamino-4′′-deoxyavermectin; MK 243; EMA; GWN 1972
CAS No: 155569-91-8
Chemical name: mixture of ≥ 90% (10E,14E,16E)-(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-α-L-lyxo-hexapyranosyl)-α-L-arabino-hexapyranoside benzoate and ≤ 10% (10E,14E,16E)-(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-α-L-lyxo-hexapyranosyl)-α-L-arabino-hexapyranoside benzoate
Empirical formula: C56H81NO15 (emamectin B1a benzoate) + C55H79NO15 (emamectin B1b benzoate)
Molecular weight: 888.13
Structural formula: 
Physical & Chemical Properties:
Appearance: pale yellow to off-white crystalline powder
Melting point: 141-146°C
Vapour pressure: 4x10-3mPa (21 °C)
KOWlogP = 5.0 (pH 7)
Bulk density: 1.20 (23 °C)
Solubility: 0.024 g/l (pH 7, 25°C).
Solubility in organic solvent: Soluble in methanol, acetone; not soluble in hexane.
Application: Emamectin Benzoate is more effective than Emamectin against the insects Lepidoptera. Notably, it is the best insecticide against cotton bell worm (Helicoverpa armigera), cole miller (plutella xylostella Linnaeus), etc. Which have been tolerant with such insecticides as pyrethroids, organic phosphates. So, emamectin benzoate is an ideal substitute for high poisonous and high residual agricultural chemicals, also a kind of outstanding biological pesticide, which prevents and controls tolerantly harmful insects. It cause death by hindering motor nerve information transmission of harmful insect. It strengthens the affect of nerve matter, such as glutamic acid and the r-amino-butyric acid (GABA), thus causes massive chloride ions enter into the nerve cell, causes losing of cell function and disruption of nerve conduction, larvae stop eating food immediately after exposure to emamectin benzoate, lead to irreversible paralysis and die. It can be degraded in the earth quickly and not accumulated. It's safe for environment. Absorbed by crops easily, and seep to epidermis, causes extension of validity. It's mainly used to prevent and control harmful insects in Lepidoptera, Coleoptera, Homoptera, Mite. Widely used to prevent and control bollworm, cutworm of sugar beet, cole moth, cabbage caterpillar, armyworm, Mite, Prodenia litura(Fabricius) and so on harmful insects in many kinds of vegetables, fruit trees, tea, tobacco and cotton.
Products available: Emamectin Benzoate 90%min Technical; 5% SG.
Package: 25kg fiber drum UN-approved.
