139024-38-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139024-38-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,0,2 and 4 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 139024-38:
(8*1)+(7*3)+(6*9)+(5*0)+(4*2)+(3*4)+(2*3)+(1*8)=117
117 % 10 = 7
So 139024-38-7 is a valid CAS Registry Number.
139024-38-7Relevant articles and documents
A new preparation of N-alkyl-2(1H)-pyridones from 2-glycudoxypyridines
Schmidhauser,Longley
, p. 7155 - 7158 (2007/10/02)
N-Alkyl-2(1H)-pyridones are prepared in high yield by the reaction of 2-glycidoxypyridines with carboxylic acids, phenols or thiophenols. These reactions proceed through an oxazolinium ion intermediate, which reacts with the acid counter ion to give the u