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(5,5-Dioxo-5,6-dihydro-4H-5λ6-thieno[3,4-c]furan-4-yl)-phenyl-methanol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

143033-33-4

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143033-33-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 143033-33-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,0,3 and 3 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 143033-33:
(8*1)+(7*4)+(6*3)+(5*0)+(4*3)+(3*3)+(2*3)+(1*3)=84
84 % 10 = 4
So 143033-33-4 is a valid CAS Registry Number.

143033-33-4Relevant academic research and scientific papers

Novel Formation of Dienes with Greater Steric Congestion resulting from the Diels-Alder Reaction-Desulfonylation Sequence of 4-Acyl-4H,6H-thienofuran 5,5-Dioxides

Ando, Kaori,Hatano, Chiharu,Akadegawa, Naoki,Shigihara, Atsushi,Takayama, Hiroaki

, p. 870 - 873 (2007/10/02)

4-Acyl-4H,6H-thienofuran 5,5-dioxides have been prepared and submitted to Diels-Alder reactions to afford dienes with greater steric congestion after desulfonylation.

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