113281-31-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 113281-31-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,3,2,8 and 1 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 113281-31:
(8*1)+(7*1)+(6*3)+(5*2)+(4*8)+(3*1)+(2*3)+(1*1)=85
85 % 10 = 5
So 113281-31-5 is a valid CAS Registry Number.
113281-31-5Relevant academic research and scientific papers
ON THE EFFECT OF RING SIZE IN THE CYCLIZATION OF CARBONYL AND VINYL RADICALS ONTO ALKENES
Crich, David,Fortt, Simon M.
, p. 2895 - 2898 (2007/10/02)
It is demonstrated that carbonyl and vinyl radicals cyclise readily onto alkynes when the product is a five membered ring but not when the product is a six membered ring; a transition state model is proposed to explain these observations.
