Cas 1142923-89-4,C20H33BrClNO3Si

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Check Digit Verification of cas no

The CAS Registry Mumber 1142923-89-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,4,2,9,2 and 3 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1142923-89:
(9*1)+(8*1)+(7*4)+(6*2)+(5*9)+(4*2)+(3*3)+(2*8)+(1*9)=144
144 % 10 = 4
So 1142923-89-4 is a valid CAS Registry Number.

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1142923-89-4Relevant articles and documents

Ring opening of aziridines with ortho-bromophenyl metal reagents: synthesis of 2-substituted indolines

Michaelis, David J.,Dineen, Thomas A.

scheme or table, p. 1920 - 1923 (2009/08/17)

Stabilized ortho-bromo phenyllithium reagents, generated via lithium-halogen exchange of aryl iodides, undergo regioselective ring opening of mono-substituted N-Boc, N-Cbz, and N-tosyl-protected aziridines in good to excellent yields. The resulting ortho-

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CAS

1142923-89-4