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(4-iodophenyl)-p-tolyldiazene is an organic compound characterized by its diazenyl functional group, which consists of two nitrogen atoms bonded together with a single bond. (4-iodophenyl)-p-tolyldiazene features a 4-iodophenyl group, where an iodine atom is attached to the para position (the fourth carbon) of a phenyl ring, and a p-tolyl group, which is a methyl-substituted phenyl ring attached to the diazenyl group. The combination of these groups results in a molecule with potential applications in chemical research and synthesis, particularly in the fields of pharmaceuticals and materials science. The presence of the iodine atom in the 4-iodophenyl group may also make (4-iodophenyl)-p-tolyldiazene a candidate for further functionalization or as an intermediate in the synthesis of more complex molecules.

21650-59-9

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21650-59-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21650-59-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,6,5 and 0 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 21650-59:
(7*2)+(6*1)+(5*6)+(4*5)+(3*0)+(2*5)+(1*9)=89
89 % 10 = 9
So 21650-59-9 is a valid CAS Registry Number.

21650-59-9Relevant academic research and scientific papers

A light-driven rotaxane molecular shuttle with dual fluorescence addresses

Qu, Da-Hui,Wang, Qiao-Chun,Ren, Jun,Tian, He

, p. 2085 - 2088 (2004)

A molecular shuttle containing an α-CD macrocycle, an azobenzene unit, and two different fluorescent naphthalimide units was synthesized. The cis-trans photoisomerization of the azobenzene unit resulted in the motion of the CD macrocycle on the track. Because of the easy regulation and full reversibility of the fluorescence change of the two stopper units, the molecular shuttle could be used as a molecular storage medium or switch with all-optical inputs and outputs.

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