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EC number: 272-729-4
CAS number: 68910-05-4
A complex residuum from the fractionation of the reaction products of 2-aminoethanol with ammonia to remove piperazine. It may contain such compounds as 2-[(2-aminoethyl)amino]ethanol, (aminoethyl)piperazine, (hydroxyethyl)piperazine.
In a survey of workers in a chemical factory
inquiries among the employees regarding airway symptoms, smoking habits
and chronic bronchitis were conducted. From 130 subject exposed, 29
persons were judged to have developed occupational asthma due to
exposure of piperazine.
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