90802-72-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90802-72-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,8,0 and 2 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 90802-72:
(7*9)+(6*0)+(5*8)+(4*0)+(3*2)+(2*7)+(1*2)=125
125 % 10 = 5
So 90802-72-5 is a valid CAS Registry Number.
90802-72-5Relevant academic research and scientific papers
SYNTHESIS OF OPTICALLY ACTIVE PENEMS - II
Girijavallabhan, V. M.,Ganguly, A. K.,Pinto, P.,Versace, R.
, p. 3179 - 3182 (2007/10/02)
A chiral synthesis of 2-thioxopenam, a highly useful synthon for penems, is described.S-allyl penems undergo facile molecular rearrangements.
