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56277-62-4

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56277-62-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 56277-62-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,2,7 and 7 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 56277-62:
(7*5)+(6*6)+(5*2)+(4*7)+(3*7)+(2*6)+(1*2)=144
144 % 10 = 4
So 56277-62-4 is a valid CAS Registry Number.

56277-62-4Relevant articles and documents

Alkenyl bromides by brominative deoxygenation of ketones in one or two steps

Von Roman,Ruhdorfer,Knorr

, p. 985 - 992 (2007/10/02)

The conversion of ketones into alkenyl bromides is accomplished in one or two steps by 2,2,2-tribromo-2,2-dihydro-1,3,2-benzodioxaphosphole or by the dibromomethyl methyl ether prepared therefrom. Investigations of the scope and limitations provide some hints for the preparative planning and improvement.

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