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20732-28-9

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20732-28-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20732-28-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,7,3 and 2 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 20732-28:
(7*2)+(6*0)+(5*7)+(4*3)+(3*2)+(2*2)+(1*8)=79
79 % 10 = 9
So 20732-28-9 is a valid CAS Registry Number.

20732-28-9Relevant articles and documents

Unusual Kinetic Stability of Enols to Ketonization: 1,2-Dimesityl-3-methylbut-1-en-1-ol and Related β-Alkyl-α,β-dimesitylethenols

Nadler, Ella B.,Rappoport, Zvi

, p. 2673 - 2682 (2007/10/02)

The β-alkyl-α,β-dimesitylethenols 3 and the isomeric β-alkyl-α,β-dimesitylethanones 4 (β-alkyl = Me, Et, i-Pr) were prepared and their spectral properties are reported.X-ray diffraction of the β-isopropyl enol 3d showed that the two mesityl rings are near

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