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53975-28-3

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53975-28-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 53975-28-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,9,7 and 5 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 53975-28:
(7*5)+(6*3)+(5*9)+(4*7)+(3*5)+(2*2)+(1*8)=153
153 % 10 = 3
So 53975-28-3 is a valid CAS Registry Number.

53975-28-3Relevant articles and documents

Westphal Condensation of N-Aminocycloiminium Salts. Synthesis of Fused Pyridazinium Derivatives

Matia, Maria P.,Garcia-Navio, Jose L.,Vaquero, Juan J.,Alvarez-Builla, Julio

, p. 777 - 780 (2007/10/02)

A series of α-alkyl-N-aminoazinium and -azolium salts 1-15 have been condensed with 1,2-dicarbonyl compounds to produce new heterocyclic cationic species 17-25 with a quaternary nitrogen atom in the bridgehead position.Key Words: Westphal condensation / N

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