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arvey rhzomorph

Chinese anme: arvey rhzomorph
ISO Common Name:Abamectin
Chemical Names: (10E, 14E, 16E, 22Z)- (1R, 4S, 5' S, 6S, 6′ S, 8 R, 12S21R, 24S )- 6′ –[(S)- butyl ]-21,24- dyhydroxyl -5′, 11-2 oxo -3,7,19- three-carbon tetracyclic miscellaneous [ 15.6.1 .1 4.8 2O 24 ] 二十10,14,16,22- tetraterpene -6- snail -2′ ( 5′, 6′ - di-H -2′ H base -2,6- purging -4-0-(2,6- purging -a-L- arab - pyran-a-L- arab – glycosides ( Ⅰ ) and (10E, 14E, 16E, 22ZS, 6S, 6′ S, 8 R, 12S, 13S, 20R, 21R, 24S )- 6' -[(S)- - dyhydroxyl -5′, 11,13,22- tetramethyl -2 oxo -3,7,19- tricarbon4.8 2O 24 ] 25 -10,14,16,22- tetraterpene -6- snail -2′ ( 5′2′ H pyranose base )-12- base -2,6- purging -4-0-(2,6- purging -已pyranose base )-3-0- methyl -a-L- arab - 已pyranose base ( Ⅱ )
CAS Number:Avermectin B 1a : 65195-55-3 ; Avermectin B1b: 65195-56
Molecular formula:C48H72O14 (B1a); C47H70O14 (B1b)
Physical and chemical properties: crude drug is white crystal. melting point 150 -157°C,without special smell. 20°C. The solubility in water is low( 10μg/l ), In acetone is 350 ;Toluene is 70 ; is 25g /l . It will not dissolve under normal temperature,Under 25°C,pH no decomposition  

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