Examlex
The five sacral vertebrae remain separate until about 40 years of age; at that point they fuse to form one wedge-shaped bone.
Primary Amine
Primary amines are organic compounds containing an amino group (-NH2) attached to a primary carbon atom, involved in a wide range of chemical reactions.
Nitrogen Atom
The basic unit of nitrogen, an element with an atomic number of 7, and essential for life as a constituent of amino acids and nucleic acids.
Organic Compound
A chemical compound containing carbon atoms bonded to hydrogen atoms, possibly alongside other elements, usually found in living organisms.
Butylamine
A primary amine with the formula C4H9NH2, used as an intermediate in the synthesis of pharmaceuticals, pesticides, and other chemicals.
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