104550-23-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 104550-23-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,5,5 and 0 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 104550-23:
(8*1)+(7*0)+(6*4)+(5*5)+(4*5)+(3*0)+(2*2)+(1*3)=84
84 % 10 = 4
So 104550-23-4 is a valid CAS Registry Number.
104550-23-4Relevant academic research and scientific papers
β-Ketocarboxylic Esters with trans-Enolization
Meier, Herbert,Lauer, Wolfgang,Krause, Volker
, p. 3382 - 3393 (2007/10/02)
Open-chained β-ketocarboxylic esters 10/11, existing predominantly in the E-configuration 2 of the enol form, can be generated by the introduction of mesityl groups.The energy gain by the intramolecular hydrogen bridge in the Z-configurations 1 is compens
