75233-83-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 75233-83-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,2,3 and 3 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 75233-83:
(7*7)+(6*5)+(5*2)+(4*3)+(3*3)+(2*8)+(1*3)=129
129 % 10 = 9
So 75233-83-9 is a valid CAS Registry Number.
75233-83-9Relevant academic research and scientific papers
Synthetic Studies toward Verrucarol. 2. Synthesis of the AB Ring System
Kraus, George A.,Roth, Bruce
, p. 4825 - 4830 (2007/10/02)
A route to the AB ring system of verrucarol is described.The successful scheme involved the formation of the A ring by a boron triacetate catalyzed Diels-Alder reaction.The second ring can be appended by an intramolecular Knoevenagel reaction to afford la
