1200433-57-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1200433-57-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,0,0,4,3 and 3 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1200433-57:
(9*1)+(8*2)+(7*0)+(6*0)+(5*4)+(4*3)+(3*3)+(2*5)+(1*7)=83
83 % 10 = 3
So 1200433-57-3 is a valid CAS Registry Number.
1200433-57-3Relevant academic research and scientific papers
Synthesis of 1,3-diketones through ring-opening of ketoketene dimer β-lactones
Ibrahim, Ahmad A.,Smith, Stephen M.,Henson, Sarah,Kerrigan, Nessan J.
supporting information; experimental part, p. 6919 - 6922 (2010/05/18)
The reaction of ketoketene dimers with organolithium reagents afforded 1,3-diketones in good to excellent yields, and with good diastereoselectivity in some cases.
