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process for the preparation of n, n '- bis - (1 - hydroxy butyl 2) - ethyleendiamine, methods for the preparation of pharmaceutical preparations, the resulting substance as an active ingredientand formed pharmaceutical preparations obtained by this method.
process for the preparation of n, n '- bis - (1 - hydroxy butyl 2) - ethyleendiamine, methods for the preparation of pharmaceutical preparations, the resulting substance as an active ingredientand formed pharmaceutical preparations obtained by this method.
