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142929-19-9

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142929-19-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 142929-19-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,9,2 and 9 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 142929-19:
(8*1)+(7*4)+(6*2)+(5*9)+(4*2)+(3*9)+(2*1)+(1*9)=139
139 % 10 = 9
So 142929-19-9 is a valid CAS Registry Number.

142929-19-9Downstream Products

142929-19-9Relevant articles and documents

Syntheses of Hydroxylated Bipyridines, III. - Synthesis of Unsymmetrically and Symmetrically Structured Dihydroxybipyridines

Dehmlow, Eckehard V.,Sleegers, Arthur

, p. 953 - 960 (2007/10/02)

Fifteen symmetrical and asymmetrical dimethoxybipyridines and the pertinent diols are prepared and characterized.Reductive cross coupling of halopyridines with Ni(0) may result in complex mixtures.The same is true for an alternative reaction of (trimethylstannyl)pyridines with halopyridines in the presence of Pd(0).UV, 1H-, and 13C-NMR spectra of the bipyridine derivatives are tabulated.Key Words: Bipyridinediols / Pyridines / Stannylpyridines

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