733770-04-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 733770-04-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,3,3,7,7 and 0 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 733770-04:
(8*7)+(7*3)+(6*3)+(5*7)+(4*7)+(3*0)+(2*0)+(1*4)=162
162 % 10 = 2
So 733770-04-2 is a valid CAS Registry Number.
733770-04-2Relevant academic research and scientific papers
Synthesis of enantiomerically pure 2-isoxacephems
Santa, Zsuzsaima,Nagy, Jozsef,Parkanyi, Laszlo,Nyitrai, Jozsef
, p. 671 - 684 (2007/10/03)
(αR,6R,7R)-7-(1-Acetoxyethyl)-3-methyl-2-isoxacephem-4-carboxylic acid and its enantiomer have been prepared. The ring systems were formed from the corresponding enantiomerically pure N-unsubstituted β-lactams. The reduction of methyl [(αR,2S,3R)-3-(1-ace
