3,4:3',4'-Bis-aethylenbibenzyl, also known as 1,1'-(1,4-phenylene)bis(4-phenylethene), is an organic compound with the chemical formula C24H20. It is a symmetrical, conjugated diene with two ethylene bridges connecting two benzene rings. 3,4:3',4'-Bis-aethylenbibenzyl is characterized by its planar structure and rigidity due to the presence of the ethylene bridges. It is used in various applications, including the synthesis of polymers and as a precursor in the production of certain pharmaceuticals. The compound is also of interest in materials science for its potential use in the development of novel materials with unique electronic properties.
The CAS Registry Mumber 1785-54-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,7,8 and 5 respectively; the second part has 2 digits, 5 and 4 respectively. Calculate Digit Verification of CAS Registry Number 1785-54: (6*1)+(5*7)+(4*8)+(3*5)+(2*5)+(1*4)=102 102 % 10 = 2 So 1785-54-2 is a valid CAS Registry Number.