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2-(2-Brom-phenyl)-2-(9-fluorenyl)-propionsaeure, also known as 2-(2-bromophenyl)-2-(9-fluorenyl)propionic acid, is a chemical compound characterized by its unique structure. It features a propionic acid backbone with a 2-bromophenyl group attached to one end and a 9-fluorenyl group on the other. The presence of the bromine atom in the phenyl ring and the fluorenyl group provides distinct electronic and steric properties to the molecule. 2-(2-Brom-phenyl)-2-(9-fluorenyl)-propionsaeure is often used in organic synthesis, particularly in the preparation of pharmaceuticals and other specialty chemicals, due to its potential to form stable intermediates and its reactivity in various chemical transformations. Its specific applications may include the synthesis of complex molecules that require the introduction of halogenated aromatic rings or the use of fluorenyl moieties for specific electronic effects.

5209-09-6

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5209-09-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5209-09-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,2,0 and 9 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 5209-09:
(6*5)+(5*2)+(4*0)+(3*9)+(2*0)+(1*9)=76
76 % 10 = 6
So 5209-09-6 is a valid CAS Registry Number.
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