131240-18-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131240-18-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,2,4 and 0 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 131240-18:
(8*1)+(7*3)+(6*1)+(5*2)+(4*4)+(3*0)+(2*1)+(1*8)=71
71 % 10 = 1
So 131240-18-1 is a valid CAS Registry Number.
131240-18-1Relevant articles and documents
Regioselective synthesis of 2-iminooxazinones from dioxinones and carbodiimides
Johnston, Jeffrey R.,West
, p. 5479 - 5482 (2013/01/13)
Iminooxazinones are readily formed via microwave heating of dioxinones in the presence of carbodiimides. Unsymmetrically substituted carbodiimides generally react with high or complete regioselectivity, allowing for assembly of the target ring systems wit
