Vitamin K1-d7 (CAS No 1233937-39-7) is a deuterated form of Vitamin K1 primarily used in biomedical research It belongs to the vitamin and cofactor category and originates as a fat-soluble vitamin prevalent in green leafy vegetables Its mechanism of action involves the gamma-carboxylation of specific protein-bound glutamate residues which plays a crucial role in blood coagulation and bone metabolism pathways In vitro Vitamin K1-d7 exhibits activity in the nanomolar to low micromolar range making it valuable in studies involving cell models to analyze coagulation processes bone development and more This compound is often employed in drug screening and metabolic studies due to its distinct isotopic labeling which helps trace metabolic pathways and bioconversion Experimental concentrations typically depend on the specific research design allowing flexibility in application across different studies and models