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4b,9b-dihydro-4b,9b-dimethylbenzofuro<3,2-b>benzofuran is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

66406-40-4

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66406-40-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 66406-40-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,4,0 and 6 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 66406-40:
(7*6)+(6*6)+(5*4)+(4*0)+(3*6)+(2*4)+(1*0)=124
124 % 10 = 4
So 66406-40-4 is a valid CAS Registry Number.

66406-40-4Upstream product

66406-40-4Downstream Products

66406-40-4Relevant academic research and scientific papers

Aerobic Copper-Catalyzed Intramolecular Cascade Oxidative Isomerization/[4+4] Cyclization of 2,2′-Disubstituted Stilbenes

Zhang, Zhi-Jun,Zhou, Xu,Li, Dashan,Chen, Yang,Xiao, Wen-Wen,Li, Rong-Tao,Shao, Li-Dong

, p. 7609 - 7624 (2021)

An aerobic copper-catalyzed cascade oxidative isomerization/[4+4] cyclization of 2,2′-disubstituted stilbenes is described. Under the mild CuCl/DBED/air catalytic system, various 5,10-heteroatom-containing tetrahydroindeno[2,1-a]indenes were efficiently p

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