89651-72-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89651-72-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,6,5 and 1 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 89651-72:
(7*8)+(6*9)+(5*6)+(4*5)+(3*1)+(2*7)+(1*2)=179
179 % 10 = 9
So 89651-72-9 is a valid CAS Registry Number.
InChI:InChI=1/C25H21N3O2/c29-24-14-19-10-12-27(16-18-6-2-1-3-7-18)17-22(19)25(30)28(24)13-11-20-15-26-23-9-5-4-8-21(20)23/h1-10,12,14-15,17,26H,11,13,16H2
89651-72-9Relevant academic research and scientific papers
Inter- and intramolecular addition of ester anions to nicotinium salts. A facile approach to nauclefine and ellipticine derivatives
Wanner,Koomen,Pandit
, p. 3673 - 3681 (2007/10/02)
Reaction of ester anions with 1-(2'-indolyl-ethyl)nicotinium chloride and 1-(1'-methyl-2'-indolylethyl)-nicotinium chloride leads to 2,7-naphthyridine-1,3-diones. Acid catalyzed cyclization of the latter yield pentacyclic napthyridocarboline derivatives.