123719-32-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 123719-32-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,7,1 and 9 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 123719-32:
(8*1)+(7*2)+(6*3)+(5*7)+(4*1)+(3*9)+(2*3)+(1*2)=114
114 % 10 = 4
So 123719-32-4 is a valid CAS Registry Number.
123719-32-4Relevant academic research and scientific papers
Synthesis of the Chiral Upper Fragment of Tetronolide
Matsuda, Koji,Nomura, Keiichi,Yoshii, Eiichi
, p. 221 - 223 (2007/10/02)
The chiral upper fragment (3) of tetronolide (1) was synthesized via spiroannulation of optically active cyclohexanone derivative (5) with trans-β-methoxyacrylate and subsequent functionalization of the resulting spirotetronate (6).
