73049-23-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73049-23-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,0,4 and 9 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 73049-23:
(7*7)+(6*3)+(5*0)+(4*4)+(3*9)+(2*2)+(1*3)=117
117 % 10 = 7
So 73049-23-7 is a valid CAS Registry Number.
73049-23-7Relevant academic research and scientific papers
Synthesis of 1,8-(6',7'-Dioxododecamethylene)phenanthrene
Rubin, Mordecai B.,Welner, Samuel
, p. 1847 - 1852 (2007/10/02)
The Synthesis of the title compound (1) is described starting from o,o'-stilbenedicarboxylic acid which was converted to o,o'-bisstilbene which underwent acyloin cyclization and oxidation to give 1 in 9.5percent overall yield.Spectro
