FIELD: chemistry.
SUBSTANCE: invention relates to conjugate of folic acid. Conjugate includes folic acid and lanthanide chelate, bound via spacer L-alanine, bound to phenanthroline, and has general formula: 
. Where Ln represents ion Eu3+, Tb3+, Sm3+, Dy3+, Yb3+, Nd3+, Er3+, Tm3+. Also claimed is method of conjugate obtaining.
EFFECT: invention makes it possible to obtain conjugate, which is able to save spectral-luminescent properties in bio-objects and act as chemically and spectrally stable molecular probe.
2 cl, 2 dwg
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