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25442-63-1

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25442-63-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 25442-63-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,4,4 and 2 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 25442-63:
(7*2)+(6*5)+(5*4)+(4*4)+(3*2)+(2*6)+(1*3)=101
101 % 10 = 1
So 25442-63-1 is a valid CAS Registry Number.

25442-63-1Relevant articles and documents

Aza-Michael reactions with vinyl sulfones and Amberlyst-15 as catalyst

Esteves, Ana P.,Silva, Marília E.,Rodrigues, Lígia M.,Oliveira-Campos, Ana M.F.,Hrdina, Radim

, p. 9040 - 9043 (2008/03/18)

Vinyl p-aminophenylsulfone and methyl vinyl sulfone were shown to react, as Michael acceptors, with a broad range of secondary and primary amines using Amberlyst as catalyst. The reactions occurred, generally, with high yields and in a short time.

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