113109-18-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 113109-18-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,3,1,0 and 9 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 113109-18:
(8*1)+(7*1)+(6*3)+(5*1)+(4*0)+(3*9)+(2*1)+(1*8)=75
75 % 10 = 5
So 113109-18-5 is a valid CAS Registry Number.
113109-18-5Relevant academic research and scientific papers
Cycloaddition Reactions of Bridgehead Enones
Kraus, George A.,Hon, Yung-Son,Sy, James,Raggon, Jeff
, p. 1397 - 1400 (2007/10/02)
The cycloaddition reactions of bridgehead enones derived in situ from ketones 8,9, and 10 with various dienes at 0 deg C afford good yields of adducts.Even 1,1,3-trisubstituted dienes work well.The exclusive exo stereochemistry can be rationalized in term