Anticoagulants of the 4-Hydroxycoumarin Group

The conditions used in TLC of these substances are seen in Table 110. 

Ethyl biscoumacetate Ethyl bis-(4-hydroxy-3-coumarinyl) -acetate 67—69 + + — + + 

Solvent 80 ml benzene, saturated with 99% formic acid at room temperature and then mixed with 4 ml butanone. 

Detection a) Tincture of iodine (German Pharmacopoeia, DAB VI)-ethanol (1+5) 

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