5098-17-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5098-17-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,0,9 and 8 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 5098-17:
(6*5)+(5*0)+(4*9)+(3*8)+(2*1)+(1*7)=99
99 % 10 = 9
So 5098-17-9 is a valid CAS Registry Number.
5098-17-9Relevant articles and documents
PREPARATION OF 2-ALKYL- AND 2-ARYL-5-AMINO-4-CYANO-1,3-OXAZOLES
Freeman, Fillmore,Kim, Darrick S. H. L.
, p. 2631 - 2632 (2007/10/02)
Aminopropanedinitrile p-toluenesulfonate (aminomalonitrile tosylate, AMNT) reacts with acid chlorides to give 2-alkyl- and 2-aryl-5-amino-4-cyano-1,3-oxazoles in good to excellent yields.
