[Short for TRYPANOSOMA.] In trypan red [rendering Ger. trypanrot], a drug used in cases of trypanosomiasis.

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1905.  Brit. Med. Jrnl., 27 May, 1140. The treatment of trypan red in various trypanosomic diseases.

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1907.  Daily News, 31 Aug., 4. According to ‘The Hospital,’ the correct name for trypan red, which is now used in cases of trypanosomiasis, is ‘sodium-ortho-benzidine-mono-sulphoacid-diazo-b-2-naphthylamine-3.6-sulphoacid’!

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