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123789-13-9

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123789-13-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 123789-13-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,7,8 and 9 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 123789-13:
(8*1)+(7*2)+(6*3)+(5*7)+(4*8)+(3*9)+(2*1)+(1*3)=139
139 % 10 = 9
So 123789-13-9 is a valid CAS Registry Number.

123789-13-9Downstream Products

123789-13-9Relevant articles and documents

Thermodynamic Study on the Effects of β-Cyclodextrin Inclusion with Anilinonaphthalenesulfonates

Catena, Gino C.,Bright, Frank V.

, p. 905 - 909 (2007/10/02)

Thermodynamic parameters and stoichiometries for the binding of anilinonaphthalenesulfonates to β-cyclodextrin are obtained from steady-state fluorescence intensity and anisotropy measurements.Specifically, formation constant, enthalpy, and entropy values are obtained for complexes of β-cyclodextrin with eight different substrate molecules at five different temperatures and six different pH values, and their associated errors are given.We propose an explanation of the relative magnitudes of the values obtained with regard to the geometry of the substrate and the importance of the various noncovalent interactions responsible for the complexation.

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