FIELD: pharmaceutics.
SUBSTANCE: proposed reagent is stable both in the individual state and in aqueous and aqueous-alcoholic solutions, and is characterized by high sensitivity and selectivity in the determination of flavonoids by the photometric method.
EFFECT: obtaining phenyldiazonium 2-benzoyl-1,1,3,3-tetracyanopropenide for the photometric determination of flavonoids in drugs.
2 cl, 2 tbl, 2 ex
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