165289-42-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 165289-42-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,5,2,8 and 9 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 165289-42:
(8*1)+(7*6)+(6*5)+(5*2)+(4*8)+(3*9)+(2*4)+(1*2)=159
159 % 10 = 9
So 165289-42-9 is a valid CAS Registry Number.
165289-42-9Relevant articles and documents
Nitropyridines. 2*. Hantzsch synthesis of nitro- and dinitropyridines
Sagitullina,Glizdinskaya,Sagitullin
, p. 739 - 744 (2007/10/03)
The interaction of α, β-unsaturated nitro ketones and various enamines leads to the synthesis of 5-nitro-1,4-dihydropyridines containing acetyl, amide, benzoyl, ester, and cyano groups in position 3, and also unsymmetrical 3,5-dinitro-1,4-dihydropyridines
