104550-19-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 104550-19-8 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, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 104550-19:
(8*1)+(7*0)+(6*4)+(5*5)+(4*5)+(3*0)+(2*1)+(1*9)=88
88 % 10 = 8
So 104550-19-8 is a valid CAS Registry Number.
104550-19-8Relevant 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
