117657-51-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117657-51-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,6,5 and 7 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 117657-51:
(8*1)+(7*1)+(6*7)+(5*6)+(4*5)+(3*7)+(2*5)+(1*1)=139
139 % 10 = 9
So 117657-51-9 is a valid CAS Registry Number.
117657-51-9Relevant academic research and scientific papers
A facile preparation of 4-aryl-3-furans
Keay, Brian A.,Bontront, Jean-Louis J.
, p. 1326 - 1330 (2007/10/02)
A series of aryl bromides undergo a palladium-catalyzed coupling reaction with 3-oxymethyl>-4-(tri-n-butylstannyl)furan to provide 4-aryl-3-furans in moderate to good yields. Key words: palladi
