Origin of acetalacet(o)- + -al
- A colorless, flammable, volatile liquid, C6H14O2, used in perfumes and as a solvent.
- Any of the class of compounds formed by combination of an aldehyde with two equivalent weights of alcohol.
Origin of acetalacet(o)- al(cohol)
- (organic chemistry) Any diether of a geminal diol, R2C(OR')2 (where R' does not = H).
Originally the term applied only to derivatives of aldehydes (One R = H) but now also applies to ketones
From acet(ic) + al(cohol).