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1280722-20-4

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1280722-20-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1280722-20-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,0,7,2 and 2 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1280722-20:
(9*1)+(8*2)+(7*8)+(6*0)+(5*7)+(4*2)+(3*2)+(2*2)+(1*0)=134
134 % 10 = 4
So 1280722-20-4 is a valid CAS Registry Number.

1280722-20-4Downstream Products

1280722-20-4Relevant articles and documents

Biginelli reaction beyond three-component limit: Synthesis of functionalized pyrimidinones via a one-pot Biginelli-Pd mediated C-C coupling strategy

Kumar, P. Mahesh,Kumar, K. Siva,Poreddy, Srinivas Reddy,Mohakhud, Pradeep Kumar,Mukkanti,Pal, Manojit

supporting information; experimental part, p. 1187 - 1191 (2011/03/20)

A new and one-pot synthesis of novel alkynyl/alkenyl/aryl (hetero)aryl substituted 3,4-dihydropyrimidin-2(1H)-one derivatives has been developed via a multi-component reaction involving sequential phosphorus acid-mediated solvent-free Biginelli followed b

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