5186-21-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5186-21-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,1,8 and 6 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 5186-21:
(6*5)+(5*1)+(4*8)+(3*6)+(2*2)+(1*1)=90
90 % 10 = 0
So 5186-21-0 is a valid CAS Registry Number.
5186-21-0Relevant academic research and scientific papers
IODINATION OF 6-ARYL-2-PYRONES
Sokolovskaya, S. V.,Moldovanova, L. K.
, p. 492 - 494 (2007/10/02)
The iodination of 6-aryl-2-pyrones with iodine chloride in glacial acetic acid leads to the corresponding 3-iodo derivatives. 3-Cyano-6-phenyl-2-pyrone and 3-phenylethynyl-6-phenyl-2-pyrone were obtained by replacement of the iodo group by cyano and phenylethynyl groups.
