If you choose a supplement you can enroll in a Blue Medicare Rx Plan to cover your prescription drugs. To compare plan premiums in your area check out the official Medicare site and enter you State and County to search for Blue Medicare PPO or other Medicare Advantage Plans offered by Blue Cross Blue Shield.
An acetal is a functional group with the following connectivity R 2 C(OR') 2, where both R' groups are organic fragments. The central carbon atom has four bonds to it, and is therefore saturated and has tetrahedral geometry.
Acetal. It is well known that distilled alcoholic beverages contain a group of aroma compounds called acetals. Acetals are formed by a reaction in which an aldehyde molecule adds a molecule alcohol to form a labile hemiacetal. This combines with a second molecule of the alcohol and yields a stable acetal. The reaction is catalyzed by acids but it is reversible, and consequently acetals are hydrolyzed in dilute alcoholic solution when acids are present.