矮壮素是一种农药，又名稻麦立。

• 分子式：C₅H₁₃Cl₂N
• 分子量：158.07
• IUPAC系统命名：
  • 中文：氯化 2-氯-N,N,N-三甲基乙铵
  • 英文：2-chloro-N,N,N-trimethylethanaminium chloride
• 英文俗名：Chlormequat chloride
• 英文简称：CCC

Chlormequat is an organic compound that is used as a plant growth regulator. It is typically sold as the chloride salt, chlormequat chloride, a colorless hygroscopic crystalline substance that is soluble in water and ethanol. It is an alkylating agent and a quaternary ammonium salt.