mercaptal
/məːˈkapt(ə)l/ /məːˈkaptal/Chemistry
noun
Any of a series of compounds with the general formula RCH(SR′)2, formed by the acid-catalysed reaction of a thiol (mercaptan) with an aldehyde.
Origin
Late 19th century; earliest use found in Matthew Muir (1848–1931). From mercapt- + -al.