172919-08-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 172919-08-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,2,9,1 and 9 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 172919-08:
(8*1)+(7*7)+(6*2)+(5*9)+(4*1)+(3*9)+(2*0)+(1*8)=153
153 % 10 = 3
So 172919-08-3 is a valid CAS Registry Number.
172919-08-3Relevant articles and documents
Total synthesis of combretastatins D
Couladouros, Elias A.,Soufli, Ioanna C.,Moutsos, Vassilios I.,Chadha, Raj K.
, p. 33 - 43 (2007/10/03)
The 15-membered caffrane ring of the natural product group of combretastatins D is synthesized in high yield with suitably functionalized saturated seco acids. The key step is a Mitsunobu-type macrolactonization. A common synthon is used for the construct
