Cas 51317-70-5,N<sub>1</sub>-acetyl-N<sub>2</sub>-benzoyl-2,4-dinitrophenylhydrazine

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Check Digit Verification of cas no

The CAS Registry Mumber 51317-70-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,3,1 and 7 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 51317-70:
(7*5)+(6*1)+(5*3)+(4*1)+(3*7)+(2*7)+(1*0)=95
95 % 10 = 5
So 51317-70-5 is a valid CAS Registry Number.

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51317-70-5Relevant articles and documents

Oxidative cyclization of arenecarbaldehyde 4-methylquinolin-2-ylhydrazones to 3-aryl-9-methyl-1,2,4-triazolo[4,3-a]quinolines using nitrous acid: A reinvestigation

Singh, Om V.,Amancharla, Praveen Kumar,Rao, G. Venkateshwar

, p. 1456 - 1459 (2007/10/03)

Arenecarbaldehyde 4-methylquinolin-2-ylhydrazones 1a-f on treatment with sodium nitrite in acetic acid afford 3-aryl-9-methyl-1,2,4-triazolo[4,3-a]quinolines 3a-f instead of 3-aryl-5-methylquinolino[3,2-e]-1,2,4-triazines 2 under microwave irradiation as

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51317-70-5