Cas 1187652-98-7,C21H19ClO3

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Check Digit Verification of cas no

The CAS Registry Mumber 1187652-98-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,7,6,5 and 2 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1187652-98:
(9*1)+(8*1)+(7*8)+(6*7)+(5*6)+(4*5)+(3*2)+(2*9)+(1*8)=197
197 % 10 = 7
So 1187652-98-7 is a valid CAS Registry Number.

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1187652-98-7Relevant articles and documents

Semisynthetic derivatives of sesquiterpene lactones by palladium-catalyzed arylation of the α-methylene-γ-lactone substructure

Han, Changho,Barrios, Francis J.,Riofski, Mark V.,Colby, David A.

supporting information; experimental part, p. 7176 - 7179 (2009/12/09)

(Chemical Equation Presented) The palladium-catalyzed arylation of different α-methylene-γ-lactone-containing sesquiterpene lactones was shown to produce E-olefin coupling products selectively in moderate to excellent yields. Biological evaluation of thes

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1187652-98-7