The NIST Reference on Constants, Units and Uncertainty

Fundamental Physical Constants
Constants
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atomic unit of electric dipole moment
 $ea_0$
 Numerical value  8.478 353 6255 x 10-30 C m
 Standard uncertainty  0.000 000 0013 x 10-30 C m
  Relative standard uncertainty  1.5 x 10-10
 Concise form  8.478 353 6255(13) x 10-30 C m    
 
Click here for correlation coefficient of this constant with other constants
Source: 2018 CODATA     
recommended values 		 Definition of
uncertainty 		      Correlation coefficient with
any other constant

 
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