A Hydrocarbyl Carboxybetaine represented by formula (1) is provided: Wherein, n1≧0 and n2>0, A is a C1-C20 alkyl group, when n1>0, and A is a single bond, when n1=0 R1, R2, R3, and R4are each independently selected from H, D, C1-C20 alkyl group, C2-C20 alkenyl group and C2-C20 alkynyl group X is selected from SH, SOCH3, SCH3, NH2, SiCl3, Si(OCH3)3, Si(OCH2CH3)3,,,, and .本發明揭露一種以式(1)表示之烴基羧基甜菜鹼: 其中,n1≧0且n2>0, 當n1>0時,A表示C1-C20烷基,當n1=0,A表示單鍵;R1、R2、R3、及R4各獨立地選自於氫原子、氘原子、C1-C20烷基、C2-C20烯基及C2-C20炔基;X係選自SH、SOCH3、SCH3、NH2、SiCl3、Si(OCH3)3、Si(OCH2CH3)3、及。