670241-98-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 670241-98-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,7,0,2,4 and 1 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 670241-98:
(8*6)+(7*7)+(6*0)+(5*2)+(4*4)+(3*1)+(2*9)+(1*8)=152
152 % 10 = 2
So 670241-98-2 is a valid CAS Registry Number.
670241-98-2Relevant 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.