75233-42-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 75233-42-0 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, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 75233-42:
(7*7)+(6*5)+(5*2)+(4*3)+(3*3)+(2*4)+(1*2)=120
120 % 10 = 0
So 75233-42-0 is a valid CAS Registry Number.
75233-42-0Relevant articles and documents
Synthetic Studies toward Verrucarol. 1. Synthesis of the AB Ring System
Kraus, George A.,Frazier, Kevin
, p. 4820 - 4825 (2007/10/02)
A synthetic route to the AB ring system of verrucarol is described.After two routes employing intramolecular cyclization failed, the Diels-Alder reaction of methyl coumalate and isoprene afforded bicyclic lactone 13.Transformation of 13 into hydroxy lacto