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2-Propenoic acid, 3-[4-[2-methoxy-5-(2-oxoethyl)phenoxy]phenyl]-, phenylmethyl ester, (E)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

138173-26-9

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138173-26-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138173-26-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,1,7 and 3 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 138173-26:
(8*1)+(7*3)+(6*8)+(5*1)+(4*7)+(3*3)+(2*2)+(1*6)=129
129 % 10 = 9
So 138173-26-9 is a valid CAS Registry Number.

138173-26-9Relevant academic research and scientific papers

First synthesis of a strained 14-membered biaryl ether lactone by macrolactonization

Justus,Steglich

, p. 5781 - 5784 (1991)

The synthesis of biaryl ether lactone 3 by macrolactonization of hydroxy acid 8 under defined Mitsunobu conditions is described. In accord with the literature, attempts to cyclize 8 via carboxyl activation failed.

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