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Rodenticide


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Bromadiolone

TC & FORMULATION: 98%TC, 0.005% BAITS




Structure Formula  blob.png

 

NOMENCLATURE

Common name bromadiolone (BSI, E-ISO, (f) F-ISO); broprodifacoum (Republic of South Africa)

IUPAC name 3-[3-(4'-bromobiphenyl-4-yl)-3-hydroxy-1-phenylpropyl]-4-hydroxycoumarin 

Chemical Abstracts name 3-[3-(4'-bromo[1,1'-biphenyl]-4-yl)-3-hydroxy-1-phenylpropyl]-4-hydroxy-2H-1-benzopyran-2-one 

CAS RN [28772-56-7] unstated stereochemistry 

 

PHYSICAL CHEMISTRY

Composition Mixture of two diastereoisomers. Tech. grade bromadiolone is 97% pure.  Mol. wt. 527.4  M.f. C30H23BrO4  Form Tech. is a yellowish powder.  M.p. 200-210 ºC (mixture of two diastereoisomers)  V.p. 0.002 mPa (20 ºC)  KOW logP = 4.27  Henry 5.55 ´ 10-5 Pa m3 mol-1 (calc.)  S.g./density 1.5164  Solubility In water 19 mg/l (20 ºC). In dimethylformamide 730, ethyl acetate 25, ethanol 8.2 (all in g/l, 20 ºC). Soluble in acetone; slightly soluble in chloroform; practically insoluble in diethyl ether and hexane.  Stability Thermally stable below 200 ºC.  F.p. 218 °C 

 

APPLICATIONS

Biochemistry Second-generation anticoagulant rodenticide which also blocks prothrombin formation.  Uses Control of rats and mice (including those resistant to warfarin) in areas containing stored products, household use, industrial buildings, and other situations. Formulation types CB; CP; RB.




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