Método para la cuantificación de cumarina en extracto seco a partir de extractos de Justicia pectoralis Jacq.

rationale: justicia pectoralis jacq., an acantaceae family species, is an herbaceous plant that is used as a traditional sedative by the cuban population. objectives: to develop and to validate a high performance liquid chromatography to determine coumarin in dry extract from j. pectoralis extracts. methods: a high performance liquid chromatography method to determine coumarin was developed and validated. results: the method was specific, accurate, precise and linear. conclusions: this method may be used to quantify coumarin in dry power samples obtained through spraying drying from j. pectoralis extracts.