1831-76-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1831-76-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,8,3 and 1 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1831-76:
(6*1)+(5*8)+(4*3)+(3*1)+(2*7)+(1*6)=81
81 % 10 = 1
So 1831-76-1 is a valid CAS Registry Number.
1831-76-1Relevant articles and documents
Pyrrolo[1,2-a]quinoxalines from chalcones: An alternate route
Togiti, Uday Kumar,Shukla, Adarash Kumar,Bhattacharya, Anupam
, (2021)
The synthesis of 2,4-disubstituted pyrrolo[1,2-a]quinoxalines from chalcones is reported. The key steps used are polyphosphoric acid (PPA) assisted acyl rearrangement of the pyrrole ring and Fe catalyzed reduction-cyclization leading to 2,4-disubstituted