87878-22-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87878-22-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,8,7 and 8 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 87878-22:
(7*8)+(6*7)+(5*8)+(4*7)+(3*8)+(2*2)+(1*2)=196
196 % 10 = 6
So 87878-22-6 is a valid CAS Registry Number.
87878-22-6Relevant articles and documents
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
