A pair of molecules or chemical groups that are linked together.
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2-(2H-1,2,3-benzotriazol-2-yl)-4-hydroxybenzenecarboxaldehyde
(3,5-di-tert-butylphenyl){5-[[4-(5,5-dimethyl-1,3-dioxan-2-yl)phenyl](1H-pyrrol-2-yl)methyl]-1H-pyrrol-2-yl}methanone
C92H48NO5P
