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Trifluoro-methanesulfonic acid (R)-4-(3-methoxy-phenyl)-4-methyl-5-oxo-cyclopent-1-enyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

332913-38-9

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332913-38-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 332913-38-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,2,9,1 and 3 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 332913-38:
(8*3)+(7*3)+(6*2)+(5*9)+(4*1)+(3*3)+(2*3)+(1*8)=129
129 % 10 = 9
So 332913-38-9 is a valid CAS Registry Number.

332913-38-9Relevant academic research and scientific papers

7,7-Dimethyl-6,8-dioxabicyclo[3.3.0]oct-3-en-2-one as a synthetic equivalent of ketodicyclopentadiene: A new route to (-)-physostigmine, (-)-physovenine, and (-)-aphanorphine

Tanaka, Keigo,Taniguchi, Takahiko,Ogasawara, Kunio

, p. 1049 - 1052 (2001)

A new diastereocontrolled route to three alkaloids having a quaternary benzylic stereogenic center, (-)-physostigmine, (-)-physovenine, and (-)-aphanorphine, has been developed using enantiopure 7,7-dimethyl-6,8-dioxabicyclo[3.3.0]oct-3-en-2-one as a synthetic equivalent of chiral cyclopentadienone.

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