A covalent bond between two carbon atoms involving four electrons.
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methyl (E)-3-methoxy-2-[(Z)-2-(phenyl)ethenyl]propenoate
C11H13NOS
C14H16O
2-Propen-1-one, 1-(4-chlorophenyl)-3-[(4-methylphenyl)sulfonyl]-
3-(4-chloro-phenyl)-2-cyano-propionic acid ethyl ester
(Z)-4-(4-bromobenzylidene)-2-methyloxazol-5(4H)-one
Cyclohexanol, 1-[3-(diethylamino)-1-propynyl]-, acetate (ester)
