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30389-02-7

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30389-02-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 30389-02-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,0,3,8 and 9 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 30389-02:
(7*3)+(6*0)+(5*3)+(4*8)+(3*9)+(2*0)+(1*2)=97
97 % 10 = 7
So 30389-02-7 is a valid CAS Registry Number.

30389-02-7Relevant articles and documents

A Computerised Least Square Method for Determination of Stability Constants of 1:1 Molecular Complexes and Chemical Shift of Pure Complexes from Nuclear Magnetic Resonance Data

Seal, B. K.,Mukherjee, A. K.

, p. 413 - 415 (2007/10/02)

A computerised method utilising nuclear magnetic resonance data has been developed for the determination of stability constants of 1:1 molecular complexes.It is based on the principle of least squares in which the coefficients are adjusted under a constraint with the help of Lagrange's method of undetermined multipliers.The method utilises the complete expression for equilibrium constant and is mathematically rigorous, straightforward, non-iterative and requires very little computer time.

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