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Pronunciation varies by accent · noun
(organic chemistry) Any of the three isomeric di-amino-benzenes, used as intermediates in the manufacture of pharmaceuticals, plastics etc..
Use phenylenediamine when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Phenylenediamine means (organic chemistry) Any of the three isomeric di-amino-benzenes, used as intermediates in the manufacture of pharmaceuticals, plastics etc..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use phenylenediamine where its definition matches the intended context.
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