161454-89-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 161454-89-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,4,5 and 4 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 161454-89:
(8*1)+(7*6)+(6*1)+(5*4)+(4*5)+(3*4)+(2*8)+(1*9)=133
133 % 10 = 3
So 161454-89-3 is a valid CAS Registry Number.
161454-89-3Relevant academic research and scientific papers
INTRAMOLECULAR DIELS-ALDER REACTIONS OF 2(1H)-PYRAZINONES: SYNTHESIS OF DIHYDROFURO- AND DIHYDROPYRROLOPYRIDIN-7(6H)-ONES
Vandenberghe, Didier M.,Hoornaert, Georges J.
, p. 185 - 186 (2007/10/02)
2(1H)-pyrazinones carrying a dienophilic side chain at the 3-position undergo intramolecular Diels-Alder reactions to give new dihydrofuropyridin-7(6H)-ones and dihydropyrrolopyridin-7(6H)-ones.
