Cas 1642868-22-1,C19H18ClNO5S

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Check Digit Verification of cas no

The CAS Registry Mumber 1642868-22-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,4,2,8,6 and 8 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1642868-22:
(9*1)+(8*6)+(7*4)+(6*2)+(5*8)+(4*6)+(3*8)+(2*2)+(1*2)=191
191 % 10 = 1
So 1642868-22-1 is a valid CAS Registry Number.

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1642868-22-1Relevant articles and documents

A tandem Mannich addition-palladium catalyzed ring-closing route toward 4-substituted-3(2H)-furanones

John, Jubi,Tarcoveanu, Eliza,Jones, Peter G.,Hopf, Henning

supporting information, p. 1462 - 1470 (2014/07/22)

A facile route towards highly functionalized 3(2H)-furanones via a sequential Mannich addition-palladium catalyzed ring closing has been elaborated. The reaction of 4-chloroacetoacetate esters with imines derived from aliphatic and aromatic aldehydes unde

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CAS

1642868-22-1