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103304-55-8

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103304-55-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 103304-55-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,3,0 and 4 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 103304-55:
(8*1)+(7*0)+(6*3)+(5*3)+(4*0)+(3*4)+(2*5)+(1*5)=68
68 % 10 = 8
So 103304-55-8 is a valid CAS Registry Number.

103304-55-8Relevant articles and documents

Synthesis of multisubstituted cycloalkenes through carbomagnesiation of strained cycloalkynes

Hosoya, Takamitsu,Karaki, Fumika,Minami, Yasunori,Nishiyama, Yoshitake,Sakata, Yuki,Tamura, Yuya,Yoshida, Suguru

supporting information, p. 7147 - 7150 (2020/07/21)

An efficient synthetic method of seven- and six-membered cycloalkenes through the generation of strained cycloalkynes and following carbomagnesiation is described. Further bond formations of the resulting cycloalkenylmagnesium intermediates with a wide variety of electrophiles enabled us to prepare diverse cycloalkene derivatives including benzoxepine analogs having a fully substituted alkene structure.

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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