Biotin-11-dUTP (Biotin-11-2’-deoxyuridine-5’-triphosphate, tetralithium salt) is a widely used compound for non-radioactive DNA labeling. Biotin-11-dUTP can be enzymatically incorporated into DNA via nick-translation, random priming, 3’-end terminal labeling or in the process of PCR. 11 is the number of carbon atoms in the backbone of linker between dUTP and biotin, this length of the linker is optimal for majority of the applications.

Molecular formula: C₂₈H₄₁O₁₇N₆P₃S (Acid Form)