171672-73-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 171672-73-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,1,6,7 and 2 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 171672-73:
(8*1)+(7*7)+(6*1)+(5*6)+(4*7)+(3*2)+(2*7)+(1*3)=144
144 % 10 = 4
So 171672-73-4 is a valid CAS Registry Number.
171672-73-4Relevant academic research and scientific papers
A Formal Total Asymmetric Synthesis of (+)-Thienamycin
Davies, Stephen G.,Hedgecock, Charles J. R.,McKenna, Jeffrey M.
, p. 2507 - 2510 (2007/10/03)
Synthesis of an enantiomerically pure intermediate to (+)-thienamycin is presented: the pivotal reaction in this sequence is the highly diastereoselective Michael addition of a differentially protected lithium amide.
