31009-91-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31009-91-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,0,0 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 31009-91:
(7*3)+(6*1)+(5*0)+(4*0)+(3*9)+(2*9)+(1*1)=73
73 % 10 = 3
So 31009-91-3 is a valid CAS Registry Number.
31009-91-3Relevant academic research and scientific papers
Unexpected formation of new bicyclic γ-lactams by dimerization of α-chloroacetoacetanilides
Han, Minsoo,Nam, Kee-Dal,Hahn, Hoh-Gyu,Shin, Dongyun
, p. 5217 - 5219 (2008/12/20)
Novel and unusual dimerization reaction of α-chloroacetoacetanilide under basic reaction condition to give structurally unique 6-oxa-3-azabicyclo[3.1.0]hexane was described.
