74143-82-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74143-82-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,1,4 and 3 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 74143-82:
(7*7)+(6*4)+(5*1)+(4*4)+(3*3)+(2*8)+(1*2)=121
121 % 10 = 1
So 74143-82-1 is a valid CAS Registry Number.
74143-82-1Relevant academic research and scientific papers
β-Aroyl-α-(arylmethylene)propionic Acids
Guirguis, Nadia R.,Awad, Boshra M.,Saad, Hanaa A.
, p. 777 - 779 (2007/10/02)
Kondensation der β-Aroylpropionsaeuren 2a-d mit Furfural (1) fuehrt zu (E,Z)-Gemischen der Enollactone 3a-d.Die Zuordnung zur (E)- oder (Z)-Reihe und das Isomerenverhaeltnis wurden durch hochaufgeloeste 1H-NMR-Spektren bestimmt.
