104637-87-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 104637-87-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,6,3 and 7 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 104637-87:
(8*1)+(7*0)+(6*4)+(5*6)+(4*3)+(3*7)+(2*8)+(1*7)=118
118 % 10 = 8
So 104637-87-8 is a valid CAS Registry Number.
104637-87-8Relevant articles and documents
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.
