264146-44-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 264146-44-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,4,1,4 and 6 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 264146-44:
(8*2)+(7*6)+(6*4)+(5*1)+(4*4)+(3*6)+(2*4)+(1*4)=133
133 % 10 = 3
So 264146-44-3 is a valid CAS Registry Number.
264146-44-3Relevant articles and documents
A high-yielding synthesis of the naturally occurring antitumour agent irisquinone
Hadfield, John A.,McGown, Alan T.,Butler, John
, p. 82 - 88 (2000)
A short, high-yielding synthesis of the antitumour agent irisquinone (1) is described. The key steps are the palladium catalysed coupling reaction of dec-9-yn-1-ol with iodide (2) to form alkyne (3) and the Fremy's salt oxidation of phenol (7).