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Z-α,β-(2-hydroxyethoxy-)-stilbene, also known as Z-α,β-(2-hydroxyethoxy)stilbene, is an organic compound with the chemical formula C16H18O3. It is a derivative of stilbene, which is a type of organic molecule that contains a vinyl group (C=C) bonded to two benzene rings. The "Z" in its name indicates the geometric isomerism of the molecule, where the hydroxyethoxy group is located on the same side of the double bond as the benzene rings. Z-α,β-(2-hydroxyethoxy-)-stilbene is characterized by its ability to form a stable structure due to the presence of the hydroxyethoxy group, which can participate in hydrogen bonding and other interactions. It is often used in chemical research and has potential applications in the synthesis of pharmaceuticals and other specialty chemicals.

78502-20-2

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78502-20-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 78502-20-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,5,0 and 2 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 78502-20:
(7*7)+(6*8)+(5*5)+(4*0)+(3*2)+(2*2)+(1*0)=132
132 % 10 = 2
So 78502-20-2 is a valid CAS Registry Number.

78502-20-2Relevant academic research and scientific papers

Synthesis and Ligand Properties of the 2,3,11,12-Tetraphenylcrown-6 Diastereomers

Merz, Andreas,Eichner, Manfred,Tomahogh, Robert

, p. 1774 - 1784 (2007/10/02)

The synthesis and the assignment of the complete set of diastereomers 2a-e of 2,3,11,12-tetraphenylcrown-6 are described.The trans-anti-trans isomer 2d is identified by chiral interaction of optically active 1-phenylethylammonium hydrobromides with the racemic crown ether shown by NMR spectroscopy.Complex association constants of the new crown ethers with sodium, potassium, and ammonium picrates are discussed in terms of the geometry of the diastereomers.

CROWN ETHERS CONTAINING TRANS DOUBLE BONDS

Merz, Andreas,Eichner, Manfred,Tomahogh, Robert

, p. 1319 - 1322 (2007/10/02)

The synthesis and spectroscopic properties of 18-crown-6-derivatives containing the E-α,β-dialkoxystilbene moiety as a ring member are described.These crown ethers are chiral but their complexing ability is drastically reduced as compared with the corresponding Z-isomers.

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