176738-55-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 176738-55-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,6,7,3 and 8 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 176738-55:
(8*1)+(7*7)+(6*6)+(5*7)+(4*3)+(3*8)+(2*5)+(1*5)=179
179 % 10 = 9
So 176738-55-9 is a valid CAS Registry Number.
176738-55-9Relevant academic research and scientific papers
A concise synthesis of ortho-condensed oxane-oxene, oxepene, oxocene and oxonene ring systems
Alvarez, Eleuterio,Delgado, Mercedes,Diaz, Maria Teresa,Hanxing, Liu,Perez, Ricardo,Martin, Julio D.
, p. 2865 - 2868 (2007/10/03)
An efficient strategy for the synthesis of trans-fused oxabicyclic systems involving thioannulation followed by a Ramberg-Backlund olefination as the key step is described.
