Representation of Organic Compounds

Complete Structural Formula: Shows all covalent bonds explicitly (e.g., $$\text{H--C}(\text{H})_2\text{--C}(\text{H})_2\text{--O--H}$$).

Condensed Structural Formula: Omits some or all single bonds (e.g. $$\text{CH}_3\text{CH}_2\text{OH}$$).

Bond-Line Formula: Carbon-carbon bonds are drawn as lines; carbon atoms are at line intersections/ends, and hydrogen atoms attached to carbons are implicit.