78831-09-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78831-09-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,8,3 and 1 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 78831-09:
(7*7)+(6*8)+(5*8)+(4*3)+(3*1)+(2*0)+(1*9)=161
161 % 10 = 1
So 78831-09-1 is a valid CAS Registry Number.
78831-09-1Relevant articles and documents
The Synthesis of Heteroaromatic Nitro Compounds from 3-Nitrochromone
Haas, Georges,Stanton, James L.,Winkler, Tammo
, p. 619 - 622 (2007/10/02)
3-Nitrochromone (1) reacts with a series of nucleophiles by Michael addition followed by intramolecular condensation to yield pyrrolyl (2), phenyl (3), pyridyl (4), pyrido (5,6), pyrimidyl (7) and pyrazolyl (8) nitro derivatives.The reactions proceed unde
