157494-22-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157494-22-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,4,9 and 4 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 157494-22:
(8*1)+(7*5)+(6*7)+(5*4)+(4*9)+(3*4)+(2*2)+(1*2)=159
159 % 10 = 9
So 157494-22-9 is a valid CAS Registry Number.
157494-22-9Relevant academic research and scientific papers
Synthesis and Amination of 4-Chloro-3-quinolinesulfonyl Chloride
Maslankiewicz, Andrzej,Skrzypek, Leszek
, p. 1317 - 1332 (2007/10/02)
Chlorinolysis of 4-chloro-3-benzylthioquinoline (2) or thoquinanthrene (1) using chlorine gas in the presence of water gave 4-chloro-3-quinolinesulfonyl chloride (3).Amination of (3) performed in ether led to 4-chloro-3-quinolinesulfonamides (4).Reactions
