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EC number: 203-468-6
CAS number: 107-15-3
Asthmatic reactions were studied among 131 factory workers who currently handled amines and other chemicals; 58 former employees (identified as probably having had asthma) were interviewed by phone. Among present employees, 15 cases of asthma were found associated with occupational exposure to chemicals, 13 were assigned to piperazine exposure, and 2 to EDA. Among former employees there were 18 cases noted; 16 assigned to piperazine, 1 to EDA, and 1 to another chemical. No information was provided on what basis the inducing agent was judged to be piperazine or EDA. The asthma in EDA was of the late type (present worker) or dual type (the other present worker and one former worker); immediate reactions alone were not seen.
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