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156901-61-0

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156901-61-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 156901-61-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,9,0 and 1 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 156901-61:
(8*1)+(7*5)+(6*6)+(5*9)+(4*0)+(3*1)+(2*6)+(1*1)=140
140 % 10 = 0
So 156901-61-0 is a valid CAS Registry Number.

156901-61-0Relevant articles and documents

Amination of Some Nitroisoquinolines with Liquid Methylamine/Potassium Permanganate

Wozniak, Marian,Nowak, Krystyna

, p. 355 - 360 (2007/10/02)

5-Nitro-, 3-methyl-5-nitro-, 5,7-dinitro-, 5-chloro-8-nitro- and 8-chloro-5-nitroisoquinoline (1a-e) as well as 5-nitroisoquinoline N-oxide (1f) are aminated with a liquid methylamine solution of potassium permanganate (LMA/PP) to the corresponding mono- or mono- and bis(methylamino)-substituted nitro compounds 2 (a-m). 1-Nitroisoquinoline (1g) is aminated with LMA/PP to 1-(methylamino)isoquinoline (2n).Quantum-chemical calculations for some mononitroisoquinolines suggest that, in general, the experimentally observed regioselectivity of the amination is controlled by an interaction of frontal molecular orbitals (FMO) of the reagents. - Key Words: Methylaminations / Calculations, FMO / Isoquinolines / Aminations / Nitro compounds

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