98969-04-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 98969-04-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,9,6 and 9 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 98969-04:
(7*9)+(6*8)+(5*9)+(4*6)+(3*9)+(2*0)+(1*4)=211
211 % 10 = 1
So 98969-04-1 is a valid CAS Registry Number.
98969-04-1Relevant articles and documents
Tautomeric equilibrium of cyclic β-ketoester enamines
Labelle, Marc,Gravel, Denis
, p. 1884 - 1890 (2007/10/02)
The conjugated-unconjugated tautomerism of β-ketoester enamines has been investigated.Enamines with different amine ring size, ketone ring size, and alkyl ester group have been prepared.Equilibrium ratios of the conjugated and unconjugated forms have been