158250-71-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 158250-71-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,2,5 and 0 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 158250-71:
(8*1)+(7*5)+(6*8)+(5*2)+(4*5)+(3*0)+(2*7)+(1*1)=136
136 % 10 = 6
So 158250-71-6 is a valid CAS Registry Number.
158250-71-6Relevant articles and documents
SYNTHESIS OF OPTICALLY ACTIVE PENEMS
Girijavallabhan, V. M.,Ganguly, A. K.,McCombie, S. W.,Pinto, P.,Rizvi, R.
, p. 3485 - 3488 (2007/10/02)
A general synthesis for optically active penems is described.Penems undergo a novel thermal isomerisation reaction.