Nopitasari, N. and Suhartati, Tati and Suharso, Suharso and Herasari, Dian and Pandiangan, Kamisah Delilawati and Hadi, Sutopo Synthesis, characterization, and antioxidant activity of some organotin(IV) 2-nitrobenzoate using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) method. Journal of Physics: Conference Series, 1751 (012098). ISSN Print : 1742-6588 Online : 1742-6596