404597-91-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 404597-91-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,4,5,9 and 7 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 404597-91:
(8*4)+(7*0)+(6*4)+(5*5)+(4*9)+(3*7)+(2*9)+(1*1)=157
157 % 10 = 7
So 404597-91-7 is a valid CAS Registry Number.
404597-91-7Relevant academic research and scientific papers
A facile synthetic route to two chalcones
Du, Zhenting,She, Xuegong,Ma, Junying,Wang, Zikun,Wu, Huafang,Li, Yang,Pan, Xinfu
, p. 45 - 46 (2007/10/03)
A facile total synthetic route to two naturally occurring chalcones with a partially methylated structure has been achieved in good yield. The key step was selective deprotection of a MOM ether in the aryl methyl ether 6 by a solid phase reaction.
