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Cyclohexaneacetic acid, 1-(3-hydroxy-1-propenyl)-, phenylmethyl ester, (E)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

138971-80-9

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138971-80-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138971-80-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,9,7 and 1 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 138971-80:
(8*1)+(7*3)+(6*8)+(5*9)+(4*7)+(3*1)+(2*8)+(1*0)=169
169 % 10 = 9
So 138971-80-9 is a valid CAS Registry Number.

138971-80-9Relevant academic research and scientific papers

A trans olefin replacement of the disulfide bridge found in cyclic peptides: Synthesis of 6,6-pentamethylene-2-amino-Δ4,5-suberic acid

Callahan,Newlander,Huffman

, p. 7203 - 7206 (2007/10/02)

Substitution of the sulfur atoms in the disulfide bridge of cyclic peptides with a trans olefin incorporates the features of a dicarba replacement while introducing a greater torsional restriction. The synthesis of the differentially protected racemic 6,6

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