Which substance is not paired correctly with its name?

Baking soda $-{\mathrm{NaHCO}}_3$

Sodium bicarbonate (${\mathrm{NaHCO}}_3$), also known as baking soda, bicarbonate of soda, or sodium hydrogen carbonate, is a white crystalline or powdery solid that is a source of carbon dioxide and is used in baking powders, effervescent salts and beverages, and as a component of dry-chemical fire extinguishers.