| 摘要 |
Novel 4,4'-dithiodianil compounds are prepared by reacting 4,4'-dithiodianiline with an aromatic or pyridine aldehyde, such as 4-nitrobenzaldehyde. The novel dithiodianil compounds can be employed for detecting thiol compounds. They react with thiols to yield reaction products which possess a different color from the novel dithiodianil compound itself. The color change obtained in this manner with the novel compounds in many cases is stronger than that obtained with Ellman's reagent frequently employed for detecting thiols.
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