187159-80-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 187159-80-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,7,1,5 and 9 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 187159-80:
(8*1)+(7*8)+(6*7)+(5*1)+(4*5)+(3*9)+(2*8)+(1*0)=174
174 % 10 = 4
So 187159-80-4 is a valid CAS Registry Number.
187159-80-4Relevant academic research and scientific papers
A New Stereoselective Route to Preparing Optically Active 2-Imino-penam Derivatives
Herak, Jure J.,Vinkovic, Mladen
, p. 1367 - 1376 (2007/10/03)
A novel and simple procedure for preparation of (5R,6S)-2-benzylimino-6-bromo-3-isopropylidene-penam 2 and (5R,6S)-2-benzylimino-3-isopropylidene-penam 8 is described. The 2-imino-penam derivatives are prepared by modification of the Cooper reductive rear
