Sulfhydryl is to aldehydeas ketoneis to the amine.
What is Aldehyde?
An organic molecule with the functional group RCH=O is referred to as an aldehyde in organic chemistry. The functional group alone (without the "R" side chain) can be categorized as a formyl group or as an aldehyde.
Aldehydes are widespread and have significant functions in both the technological and biological worlds.
Aldehydes have a carbon center attached to oxygen via a double bond, hydrogen via a single bond, and a third substituent—usually carbon or, in the case of formaldehyde, hydrogen—by a single bond.
It's common to refer to the center carbon as being sp2-hybridized. Aldehydes belong to a polar category. The length of the C=O bond is 120–122 picometers.