583839-26-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 583839-26-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,8,3,8,3 and 9 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 583839-26:
(8*5)+(7*8)+(6*3)+(5*8)+(4*3)+(3*9)+(2*2)+(1*6)=203
203 % 10 = 3
So 583839-26-3 is a valid CAS Registry Number.
583839-26-3Relevant academic research and scientific papers
Synthesis of isocoumarins and α-pyrones via electrophilic cyclization
Yao, Tuanli,Larock, Richard C.
, p. 5936 - 5942 (2007/10/03)
A variety of substituted isocoumarins and α-pyrones are readily prepared in excellent yields under very mild reaction conditions by the reaction of o-(1-alkynyl)benzoates and (Z)-2-alken-4-ynoates with ICl, I2, PhSeCl, p-O2NC6/
