56813-50-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 56813-50-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,8,1 and 3 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 56813-50:
(7*5)+(6*6)+(5*8)+(4*1)+(3*3)+(2*5)+(1*0)=134
134 % 10 = 4
So 56813-50-4 is a valid CAS Registry Number.
56813-50-4Relevant academic research and scientific papers
HYDRAZONES OF PHTHALAZONES. SOME FORMAZANS AND HYDRAZIDINES
Buzykin, B. I.,Bystrykh, N. N.
, p. 953 - 961 (2007/10/02)
In formazans, isolated during the azo coupling of arenediazonium salts with benzylidenehydrazones of 4-chloro-1-phthalazinone, the hydrogen atom is localized at the nitrogen atom of the ring and not in the formazan fragment.These formazans and their analo
