Tag: Isomer

While there are eight possible stereoisomers of biotin, only D-biotin is the naturally occurring and biologically active form within the human body. To understand **what's the difference between biotin and D-biotin**, it's essential to look at the chemistry behind this vital vitamin and its role in metabolism.

According to the American Chemical Society, pseudoephedrine is a diastereomer of ephedrine, meaning they share a similar basic chemical formula but possess a distinct, non-superimposable three-dimensional structure. This structural difference is the fundamental reason why pseudoephedrine is not ephedrine, and it leads to important variations in their therapeutic uses, potency, and side effect profiles.