77474-56-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77474-56-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,4,7 and 4 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 77474-56:
(7*7)+(6*7)+(5*4)+(4*7)+(3*4)+(2*5)+(1*6)=167
167 % 10 = 7
So 77474-56-7 is a valid CAS Registry Number.
77474-56-7Relevant articles and documents
BISINDOLES. 7. SYNTHESIS OF DI(5-INDOLYL) SULFONE
Chikvaidze, I. Sh.,Samsoniya, Sh. A.,Kozik, T. A.,Suvorov, N. N.
, p. 1146 - 1148 (1980)
The parent compound of a new heterocyclic system, viz., di(5-indolyl) sulfone, was synthesized by the classical scheme of the Fischer reaction by means of polyphosphoric acid.The starting dihydrazine was obtained from 4,4'-dichlorodiphenyl sulfone.
