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92651-21-3

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92651-21-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 92651-21-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,2,6,5 and 1 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 92651-21:
(7*9)+(6*2)+(5*6)+(4*5)+(3*1)+(2*2)+(1*1)=133
133 % 10 = 3
So 92651-21-3 is a valid CAS Registry Number.

92651-21-3Relevant articles and documents

Novel quercetin derivatives, their preparation, pharmaceutical compositions containing them and their use

-

Page/Page column 11, (2012/07/03)

The invention relates to novel quercetin derivatives and pharmaceutically acceptable salts, hydrates, and solvates and dimers thereof; a process for the preparation of the novel quercetin derivatives and pharmaceutically acceptable salts, hydrates, and so

THE INVENTION OF NEW RADICAL CHAIN REACTIONS. PART VIII. RADICAL CHEMISTRY OF THIOHYDROXAMIC ESTERS; A NEW METHOD FOR THE GENERATION OF CARBON RADICALS FROM CARBOXYLIC ACIDS.

Barton, Derek H. R.,Crich, David,Motherwell, William B.

, p. 3901 - 3924 (2007/10/02)

The aliphatic and alicyclic esters of N-hydroxy-pyridine-2-thione are readily reduced by tributylstannane in a radical chain reaction to furnish nor-alkanes.In the absence of the stannane a smooth decarboxylative rearrangement occurs to give 2-substituted thiopyridines.The radicals present in this reaction provoke with t-butylthiol an efficient radical reaction with formation of nor-alkane and 2-pyridyl-t-butyl disulphide.Similarly these carbon radicals can be captured by halogen atom transfer to give noralkyl chlorides, bromides and iodides.With oxygen in the presence of t-butylthiol the corresponding noralkyl hydroperoxides are formed in another radical chain reaction.

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