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1153668-72-4

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1153668-72-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1153668-72-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,5,3,6,6 and 8 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1153668-72:
(9*1)+(8*1)+(7*5)+(6*3)+(5*6)+(4*6)+(3*8)+(2*7)+(1*2)=164
164 % 10 = 4
So 1153668-72-4 is a valid CAS Registry Number.

1153668-72-4Relevant articles and documents

Efficient synthesis of 9-aryl-6-(2-fluorophenyl)-1,2,4-triazolo[4,3-a] [1,8]naphthyridines using chloramine-T under microwave irradiation

Mogilaiah,Dhanaja,Srivani,Chandra, A. Vinay

experimental part, p. 500 - 504 (2010/11/04)

A simple and highly efficient procedure has been described for the synthesis of 9-aryl-6-(2-fliuorophenyl)-1,2,4-triazolo[4,3-a][1,8]naphthyridines 8 by oxidation of the corresponding aryl aldehyde 3-(2-fluorophenyl)-1,8- naphthyridin-2-ylhydrazones 7 with chloramines-T in ethanol under microwave irradiation. The products are obtained in good yields and in state of high purity. The structures of the compounds 3-8 have been established on the basis of spectral (IR, 1H NMR and MS) and analytical data.

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