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2443-77-8

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2443-77-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 2443-77-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,4,4 and 3 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 2443-77:
(6*2)+(5*4)+(4*4)+(3*3)+(2*7)+(1*7)=78
78 % 10 = 8
So 2443-77-8 is a valid CAS Registry Number.

2443-77-8Downstream Products

2443-77-8Relevant articles and documents

Primary Sulfonamide Functionalization via Sulfonyl Pyrroles: Seeing the N?Ts Bond in a Different Light

Ozaki, Tomoya,Yorimitsu, Hideki,Perry, Gregory J. P.

, p. 15387 - 15391 (2021/10/04)

Despite common occurrence in molecules of value, methods for transforming sulfonamides are distinctly lacking. Here we introduce easy-to-access sulfonyl pyrroles as synthetic linchpins for sulfonamide functionalization. The versatility of the sulfonyl pyrrole unit is shown by generating a variety of products through chemical, electrochemical and photochemical pathways. Preliminary results on the direct functionalization of primary sulfonamides are also provided, which may lead to new modes of activation.

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