672288-25-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 672288-25-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,7,2,2,8 and 8 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 672288-25:
(8*6)+(7*7)+(6*2)+(5*2)+(4*8)+(3*8)+(2*2)+(1*5)=184
184 % 10 = 4
So 672288-25-4 is a valid CAS Registry Number.
672288-25-4Relevant articles and documents
Multicomponent Coupling Approach to (±)-Frondosin B and a Ring-Expanded Analogue
Kerr, Daniel J.,Willis, Anthony C.,Flynn, Bernard L.
, p. 457 - 460 (2007/10/03)
(Equation presented) A recently discovered multicomponent coupling reaction is used to give direct access to a late intermediate in the synthesis of frondosin B. This intermediate can also be efficiently converted to a ring-expanded analogue of frondosin
