80909-65-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 80909-65-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,9,0 and 9 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 80909-65:
(7*8)+(6*0)+(5*9)+(4*0)+(3*9)+(2*6)+(1*5)=145
145 % 10 = 5
So 80909-65-5 is a valid CAS Registry Number.
80909-65-5Relevant academic research and scientific papers
2-Thioxopenams, Useful Intermediates for Penem Synthesis
Tanaka, Teruo,Hashimoto, Toshihiko,Lino, Kimio,Sugimura, Yukio,Miyadera, Tetsuo
, p. 713 - 714 (2007/10/02)
The new penam derivatives, 2-thioxopenams, are prepared by a novel synthetic method and treated with alkylating agents to give penem derivatives.
