different between monothiohemiacetal vs dithiohemiacetal

English

mono- +? thio- +? hemiacetal

monothiohemiacetal (plural monothiohemiacetals)

(chemistry) any compound, of general formula R₂C(SR')OH or R₂C(OR')SH derived from a hemiacetal by replacing one oxygen with sulfur

di- +? thio- +? hemiacetal

dithiohemiacetal (plural dithiohemiacetals)

(chemistry) any compound, of general formula R₂C(SR')SH, derived from a hemiacetal by replacing both oxygens with sulfur

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