4206-19-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4206-19-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,0 and 6 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 4206-19:
(6*4)+(5*2)+(4*0)+(3*6)+(2*1)+(1*9)=63
63 % 10 = 3
So 4206-19-3 is a valid CAS Registry Number.
4206-19-3Relevant academic research and scientific papers
Synthesis and Reaction of 3-Bromoflavanones with DMSO
Sharma, T. C.,Pawar, S. R.,Reddy, N. J.,Donnelly, John A.
, p. 80 - 81 (2007/10/02)
Bromination of flavanones (I) with (2-carboxyethyl)triphenylphosphonium perbromide gives the corresponding 3-bromoflavanones (II) which when treated with DMSO at room temperature undergo dehydrobromination to flavones (III).
