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atomic unit of electric dipole moment  Value  8.478 352 81 x 10-30 C m  Standard uncertainty  0.000 000 21 x 10-30 C m   Relative standard uncertainty   2.5 x 10-8  Concise form  8.478 352 81(21) x 10-30 C m       Click here for correlation coefficient of this constant with other constants Source: 2006 CODATA      recommended values  Definition of uncertainty       Correlation coefficient with any other constant