Non-SI unit of electric dipole moment. It is equal to the electric dipole moment for two charges of 10E-10 franklin separated by 1 ångström, D = 10E-18 Fr cm ≈ 3.33564 x 10E-30 C m.
Source:
Green Book, 2nd ed., p. 115 (https://goldbook.iupac.org/files/pdf/green_book_2ed.pdf)