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123389-03-7

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123389-03-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 123389-03-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,3,8 and 9 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 123389-03:
(8*1)+(7*2)+(6*3)+(5*3)+(4*8)+(3*9)+(2*0)+(1*3)=117
117 % 10 = 7
So 123389-03-7 is a valid CAS Registry Number.

123389-03-7Relevant articles and documents

Cs2CO3-promoted vinylation of phenols with trichloroethylene: Facile synthesis of (E)-1,2-dichloro-1-phenoxyethenes

Takahashi, Kazunori,Mamiya, Naho,Fukushima, Kei,Tsubuki, Masayoshi,Honda, Toshio

, p. 1622 - 1630 (2018/10/04)

An efficient method for the synthesis of (E)-1,2-dichloro-1-phenoxyethenes 2 has been developed. The reaction of phenol derivatives 1 with trichloroethylene at ambient temperature by means of Cs2CO3-DMSO system furnished the correspo

APPLICATION OF TRICHLOROETHYLENE IN ORGANIC SYNTHESIS. PART III. SYNTHESIS OF DICHLOROVINYL AROMATIC ETHERS

Pielichowski, Jan,Bogdal, Dariusz

, p. 483 - 487 (2007/10/02)

A simple preparative method of synthesis of aromatic dichlorovinyl ethers was elaborated.The method is based on the reactions of phenols with trichloroethylene under phase-transfer conditions, in the presence of catalytic quantities of quaternary ammonium

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