851674-91-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 851674-91-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,1,6,7 and 4 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 851674-91:
(8*8)+(7*5)+(6*1)+(5*6)+(4*7)+(3*4)+(2*9)+(1*1)=194
194 % 10 = 4
So 851674-91-4 is a valid CAS Registry Number.
851674-91-4Relevant academic research and scientific papers
A synthesis and reactivity of 1,4-dihydro-4-thioxo-3-quinolinesulfonamides
Skrzypek, Leszek
, p. 637 - 642 (2007/10/03)
4-Chloro-3-quinolinesulfonamides (1) were transformed to 1,4-dihydro-4-thioxo-3-quinolinesulfonamides (2) which methylation gave 4-methylthio-3-quinolinesulfonamides (3). Oxidation of sulfonamides (2) with hydrogen peroxide provided 1,4-dihydro-4-oxo-3-qu
