138963-12-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138963-12-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,9,6 and 3 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 138963-12:
(8*1)+(7*3)+(6*8)+(5*9)+(4*6)+(3*3)+(2*1)+(1*2)=159
159 % 10 = 9
So 138963-12-9 is a valid CAS Registry Number.
138963-12-9Relevant academic research and scientific papers
Oxidative Cleavage of a Tricyclic Pyridone to a Bicyclic Lactam-dione
Friary, Richard J.,Schwerdt, John H.
, p. 9981 - 9984 (2007/10/02)
Two equivalents of anhydrous m-chloroperbenzoic acid (m-CPBA) cleaved the pyridone ring of 10-(3-chlorophenyl)-6,8,9,10-tetrahydrobenzonaphthyridin-5(7H)-one, forming the ten-membered lactam α-diketone 12-(3-chlorophenyl)-7,8,9,10-tetrahydropyrido
