The value of the strong interaction coupling constant, αs, is not predicted by the Standard Model theory and is known from experiments. This article proposes a method for obtaining the constant from the Baryogenesis Law. The constant is directly calculated from the mass defect of elementary particles, presenting a novel approach to investigating the strong interaction coupling constant. This method unveils the mechanism of the constant's origin from the mass defect of elementary particles, providing new insights into the precision of αs. The calculated value from the Baryogenesis Law, αs(mZ0) = 0.1172(18), aligns well with the experimental value. A range of values for the constant is determined, ensuring its physical significance. The Baryogenesis Law reveals that the strong interaction coupling constant, αs, is not an independent constant, establishing its connection with the fine structure constant α. The dependent status of αs and its link with the fine structure constant indicates a profound connection between the two fundamental interactions — electromagnetic and strong.