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143755-49-1

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143755-49-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 143755-49-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,7,5 and 5 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 143755-49:
(8*1)+(7*4)+(6*3)+(5*7)+(4*5)+(3*5)+(2*4)+(1*9)=141
141 % 10 = 1
So 143755-49-1 is a valid CAS Registry Number.

143755-49-1Relevant articles and documents

Synthesis of benzo[c][2,7]naphthyridine-6-ones via cascade aromatization/C(sp2)–H amidation of 1,4-dihydropyridines

Luo, Laichun,Wang, Qiang,Peng, Xiaozhi,Hu, Chunling,Wang, Hong

, p. 2792 - 2795 (2017)

A K2S2O8-mediated cascade dehydrogenative aromatization/intramolecular C(sp2)–H amidation of 1,4-dihydropyridines is described. This method provides an efficient access to multisubstituted benzo[c][2,7]naphthyri

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