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1227857-57-9

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1227857-57-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1227857-57-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,7,8,5 and 7 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1227857-57:
(9*1)+(8*2)+(7*2)+(6*7)+(5*8)+(4*5)+(3*7)+(2*5)+(1*7)=179
179 % 10 = 9
So 1227857-57-9 is a valid CAS Registry Number.

1227857-57-9Relevant articles and documents

Palladium-catalyzed intramolecular amidation of C(sp2)-H bonds: Synthesis of 4-aryl-2-quinolinones

Inamoto, Kiyofumi,Saito, Tadataka,Hiroya, Kou,Doi, Takayuki

supporting information; experimental part, p. 3900 - 3903 (2010/07/05)

Figure presented A catalytic synthetic approach for the synthesis of 2-quinolinone compounds through a Pd-catalyzed C(sp2)-H functionalization/intramolecular amidation sequence is described. The cyclization process efficiently proceeds in the p

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