158583-99-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 158583-99-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,5,8 and 3 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 158583-99:
(8*1)+(7*5)+(6*8)+(5*5)+(4*8)+(3*3)+(2*9)+(1*9)=184
184 % 10 = 4
So 158583-99-4 is a valid CAS Registry Number.
158583-99-4Relevant academic research and scientific papers
Synthesis of 2-aryl-1,2,3,4-tetrahydropyridothienoquinolin-4-ones
Nandeeshaiah, S. K.,Ambekar, Sarvottam Y.
, p. 375 - 379 (2007/10/02)
The synthesis of a new tetracyclic condensed quinoline system is reported by a novel method.The method involves β-enamino carbonyl compound as starting material to get 1-quinolin-2-yl>-3-aryl-2-propen-1-one, which in turn is cyclised
