etrodotoxin is a toxic chemical found in fugu pufferfish, a popular but rare delicacy in Japan. The compound has an LD50 (the amount of substance that is lethal to 50.% of a population sample) of 1.0 x 10-5 grams per kilogram of body mass. Tetrodotoxin is 41.38% carbon by mass, 13.16% nitrogen by mass, and 5.37% hydrogen by mass, with the remaining amount consisting of oxygen. What is the empirical formula of tetrodotoxin