Calcium hypochlorite and Trichloroisocyanuric Acid (TCCA) are both chemical compounds commonly used as disinfectants and bleaching agents, but they have some differences:

Chemical Composition: Calcium hypochlorite is a salt with the chemical formula Ca(ClO)2, while TCCA is a chlorinated derivative of isocyanuric acid with the chemical formula C3Cl3N3O3.

Chlorine Content: Calcium hypochlorite contains around 65-75% available chlorine, while TCCA typically contains 90% available chlorine.