308804-97-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 308804-97-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,8,8,0 and 4 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 308804-97:
(8*3)+(7*0)+(6*8)+(5*8)+(4*0)+(3*4)+(2*9)+(1*7)=149
149 % 10 = 9
So 308804-97-9 is a valid CAS Registry Number.
308804-97-9Relevant articles and documents
Total synthesis of Marchantinquinone
Lopez,Pandolfi,Seoane
, p. 1403 - 1408 (2007/10/03)
The first synthesis of the title compound is described. Salient features include biaryl ether formation through S(N)Ar reactions and macrocyclization via a [Ni]0 mediated intramolecular coupling reaction.