239075-68-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 239075-68-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,3,9,0,7 and 5 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 239075-68:
(8*2)+(7*3)+(6*9)+(5*0)+(4*7)+(3*5)+(2*6)+(1*8)=154
154 % 10 = 4
So 239075-68-4 is a valid CAS Registry Number.
239075-68-4Relevant articles and documents
Total synthesis of (+)-prelaureatin and (+)-laurallene
Crimmins, Michael T.,Tabet, Elie A.
, p. 5473 - 5476 (2007/10/03)
The first total syntheses of (+)-prelaureatin and (+)-laurallene are described. An asymmetric glycolate aldol addition was followed by a ring- closing metathesis to close the eight-membered ring allowing construction of the oxocene core of (+)-prelaureati