Cas 14159-52-5,2-isobutyl-6-methylpyridin-3-ol

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Check Digit Verification of cas no

The CAS Registry Mumber 14159-52-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,4,1,5 and 9 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 14159-52:
(7*1)+(6*4)+(5*1)+(4*5)+(3*9)+(2*5)+(1*2)=95
95 % 10 = 5
So 14159-52-5 is a valid CAS Registry Number.

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14159-52-5Relevant articles and documents

Efficient regioselective preparation of monobromo and bromoiodo hydroxy pyridines from dibromoderivatives via bromine-lithium exchange

Meana, ángela,Rodríguez, Justo F.,Sanz-Tejedor, M. Ascensión,García-Ruano, José L.

, p. 1678 - 1682 (2003)

Annular dibromination of hydroxypyridines with NBS in acetonitrile followed by bromine-lithium exchange with RLi and subsequent trapping with H2O or I2 afforded monobromo and bromoiodo derivatives in a completely regioselective way. Iodination of bromo hydroxypyridines with NIS is totally regioselective.

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CAS

14159-52-5