168780-23-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 168780-23-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,8,7,8 and 0 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 168780-23:
(8*1)+(7*6)+(6*8)+(5*7)+(4*8)+(3*0)+(2*2)+(1*3)=172
172 % 10 = 2
So 168780-23-2 is a valid CAS Registry Number.
168780-23-2Relevant academic research and scientific papers
The Synthesis of 1α-Fluoro-1β-methylcarbapenem Esters
Wildonger, Kenneth J.,Leanza, William J.,Ratcliffe, Ronald W.,Springer, James P.
, p. 1891 - 1900 (2007/10/02)
The synthesis of p-nitrobenzyl(1S,3R,5S,6S)-1-fluoro-1-methyl-2-oxo-6-ethyl>carbapenam-3-carboxylate and allyl (1R,5S,6S)-6--1-fluoro-1-methyl-2-phenylcarbapen-2-em-3-carboxylate is