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5-(4-methoxyphenyl)-8,9-dihydro-7H-benzo[7]annulene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

21855-86-7

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21855-86-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21855-86-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,8,5 and 5 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 21855-86:
(7*2)+(6*1)+(5*8)+(4*5)+(3*5)+(2*8)+(1*6)=117
117 % 10 = 7
So 21855-86-7 is a valid CAS Registry Number.

21855-86-7Relevant academic research and scientific papers

Cu-catalyzed intramolecular hydroarylation of alkynes

Wang, Yun-Long,Zhang, Wen-Man,Dai, Jian-Jun,Feng, Yi-Si,Xu, Hua-Jian

, p. 61706 - 61710 (2015/02/19)

An efficient Cu-catalyzed intramolecular hydroarylation reaction of alkynes has been developed. The reaction is accomplished under mild conditions and shows good tolerance to both electron-rich and electron-deficient aryl nucleophiles. A series of aryl, h

Synthesis and estrogen receptor binding of 6,7-dihydro-8-phenyl-9-[4-[2-(dimethylamino)ethoxy]phenyl]-5 H-benzocycloheptene, a nonisomerizable analogue of tamoxifen. X-ray crystallographic studies

McCague,Kuroda,Leclercq,Stoessel

, p. 2053 - 2059 (2007/10/02)

Syntheses of the title compound, a novel nonisomerizable antiestrogen containing a seven-membered ring, are described. In one method, 6,7-dihydro-9-(4-methoxyphenyl)-5H-benzocycloheptene was brominated at the 8-position and the bromine displaced by phenyl

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