943784-98-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 943784-98-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,4,3,7,8 and 4 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 943784-98:
(8*9)+(7*4)+(6*3)+(5*7)+(4*8)+(3*4)+(2*9)+(1*8)=223
223 % 10 = 3
So 943784-98-3 is a valid CAS Registry Number.
943784-98-3Relevant articles and documents
Studies toward the total synthesis of grandisine a: Synthesis of 9-epi-grandisine A
Maloney, David J.,Danishefsky, Samuel J.
, p. 167 - 174 (2008/02/13)
A concise synthesis of 9-epi-grandisine A is described, which makes use of a Lewis acid-promoted hetero-Diels-Alder reaction to construct the tricyclic skeleton. Attempts to obtain grandisine A through a late-stage controlled epimerization are also discussed.
