1172121-55-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1172121-55-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,2,1,2 and 1 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1172121-55:
(9*1)+(8*1)+(7*7)+(6*2)+(5*1)+(4*2)+(3*1)+(2*5)+(1*5)=109
109 % 10 = 9
So 1172121-55-9 is a valid CAS Registry Number.
1172121-55-9Relevant academic research and scientific papers
Synthesis of simplified analogues of eleutherobin via a Claisen rearrangement/RCM strategy
Frankie Mak,Chiang, Gary C.H.,Davidson, James E.P.,Davies, John E.,Ayscough, Andrew,Pain, Gilles,Burton, Jonathan W.,Holmes, Andrew B.
experimental part, p. 921 - 944 (2009/09/25)
The enantioselective synthesis of a number of simplified analogues of the cytotoxic natural product eleutherobin is reported.
