The compound with CAS number 24307-26-4 is known as Mepiquat chloride. It is a quaternary ammonium salt, specifically N,N-dimethylpiperidinium chloride. Its chemical structure features a piperidinium ring core substituted with two methyl groups on the nitrogen atom, forming a cationic species paired with a chloride anion. Mepiquat chloride is primarily used as a plant growth regulator in agriculture. It acts as a gibberellin biosynthesis inhibitor, effectively reducing vegetative growth (stem elongation) in plants. This leads to shorter, sturdier plants with improved resistance to lodging and, in some crops like cotton, can promote more efficient boll development and potentially increase yield. It is widely applied to crops such as cotton, cereals, and various horticultural plants. From a chemical synthesis perspective, the structure of mepiquat chloride represents a specific class of quaternary ammonium compounds. While its primary and dominant use is agricultural, the piperidinium core and its synthetic precursors can be of interest as specialized organic building blocks in research chemistry, particularly in the development of other cationic surfactants or functional materials.