77855-15-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77855-15-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,8,5 and 5 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 77855-15:
(7*7)+(6*7)+(5*8)+(4*5)+(3*5)+(2*1)+(1*5)=173
173 % 10 = 3
So 77855-15-3 is a valid CAS Registry Number.
77855-15-3Relevant articles and documents
SYNTHESIS AND STUDY OF INDOLOQUINOXALINE DERIVATIVES
Ivashchenko, A. V.,Agafonova, I. F.
, p. 184 - 189 (2007/10/02)
The corresponding indoloquinoxalines and spiro(benzimidazoline-2,3'-indoline)-2'-ones are formed in the reaction of 2,5-dibutoxy-o-phenylenediamine (I) with 5-nitro- and N-acetylisatin in 50-80percent acetic acid, while the corresponding spiro(2H-b
