有挥发性。易潮解。易溶于水，溶于乙醇和氯仿，几乎不溶于乙醚。有刺激性。二甲胺盐酸盐是有机合成的原料，还用作乙酰化分析的催化剂和镁试剂。 Dimethylamine hydrochloride (N,N-Dimethylamine) is abundantly present in human urine. Main sources of urinary dimethylamine have been reported to include trimethylamine N-oxide, a common food component, and asymmetric dimethylarginine (ADMA), an endogenous inhibitor of nitric oxide (NO) synthesis. ADMA is excreted in the urine in part unmetabolized and in part after hydrolysis to dimethylamine by dimethylarginine dimethylaminohydrolase (DDAH).