74937-07-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74937-07-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,9,3 and 7 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 74937-07:
(7*7)+(6*4)+(5*9)+(4*3)+(3*7)+(2*0)+(1*7)=158
158 % 10 = 8
So 74937-07-8 is a valid CAS Registry Number.
74937-07-8Relevant academic research and scientific papers
Pyranopyrazoles III synthesis of 1H-pyrano[2,3-c]pyrazol-4-ones [1]
Khan,Ellis,Pagotto
, p. 193 - 197 (2007/10/03)
Various derivatives of title ring system were synthesized by Claisen condensation of 4 acetyl-5-hydroxypyrazoles with appropriate esters, followed by acid-catalyzed ring closure.
