98669-75-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 98669-75-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,6,6 and 9 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 98669-75:
(7*9)+(6*8)+(5*6)+(4*6)+(3*9)+(2*7)+(1*5)=211
211 % 10 = 1
So 98669-75-1 is a valid CAS Registry Number.
98669-75-1Relevant academic research and scientific papers
Reactions of 5-Bromoalkylidene-3-pyrrolin-2-ones,1
Stachel, Hans-Dietrich,Poschenrieder,Hermann
, p. 1692 - 1696 (2007/10/02)
The title compounds 1 react with sodium methoxide to give 5--3-pyrrolin-2-ones 2 by substitution and to yield 5-hydroxy-2-pyridones 3 by ring enlargement.The relative amounts of the products depend on the substituents and the alko
