777857-51-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 777857-51-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,7,7,8,5 and 7 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 777857-51:
(8*7)+(7*7)+(6*7)+(5*8)+(4*5)+(3*7)+(2*5)+(1*1)=239
239 % 10 = 9
So 777857-51-9 is a valid CAS Registry Number.
777857-51-9Relevant articles and documents
Synthesis of modified psoralen analogues
Garazd,Garazd,Ogorodniichuk,Khilya
, p. 291 - 300 (2007/10/03)
Substituted 3-(5-methyl-7-oxofuro[3,2-g]chromen-6-yl)propanoic acids analogous to psoralen were synthesized by linear annulation of a furan moiety to the coumarin system.