Cas 4556-57-4,2,4-DIPIPERIDIN-1-YLPYRIDINE

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Check Digit Verification of cas no

The CAS Registry Mumber 4556-57-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,5,5 and 6 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 4556-57:
(6*4)+(5*5)+(4*5)+(3*6)+(2*5)+(1*7)=104
104 % 10 = 4
So 4556-57-4 is a valid CAS Registry Number.

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4556-57-4Relevant articles and documents

Regioselective Amination or Alkoxylation of Halogenated Amino-, Thio- or Alkoxypyridines via Pyridyne Intermediates

Djukanovic, Dimitrije,Heinz, Benjamin,Idriess, Mohamed,Knochel, Paul,Martin, Benjamin,Siemens, Fiona

, (2021/11/26)

The treatment of 3-halopyridines (Cl, Br) bearing an R-substituent in position 2 (R = OEt, NEt2, N-piperidyl, or SEt) or in position 5 (R = OMe, OEt, SEt, NMe2, NEt2, or aryl) with KHMDS and an amine at 25 C for 12 hours in THF provided regioselectively 3

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4556-57-4