Radical 49
Radical 49 or radical oneself meaning "oneself" is one of the 31 Kangxi radicals composed of three strokes.
In the Kangxi Dictionary, there are 20 characters to be found under this radical.
己 is also the 52nd indexing component in the Table of Indexing Chinese Character Components predominantly adopted by Simplified Chinese dictionaries published in mainland China. Two associated indexing components, and are affiliated to the principal indexing component 己.
In Chinese astrology, 巳 represents the sixth Earthly Branch and corresponds to the Snake in the Chinese zodiac. In the ancient Chinese cyclic character numeral system tiāngān, 己 represents the sixth Celestial stem.