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1281267-23-9

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1281267-23-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1281267-23-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,1,2,6 and 7 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1281267-23:
(9*1)+(8*2)+(7*8)+(6*1)+(5*2)+(4*6)+(3*7)+(2*2)+(1*3)=149
149 % 10 = 9
So 1281267-23-9 is a valid CAS Registry Number.

1281267-23-9Downstream Products

1281267-23-9Relevant academic research and scientific papers

Fluorenone synthesis by palladacycle-catalyzed sequential reactions of 2-bromobenzaldehydes with arylboronic acids

Liu, Tao-Ping,Liao, Yuan-Xi,Xing, Chun-Hui,Hu, Qiao-Sheng

, p. 2452 - 2455 (2011)

Chemical equations presented. A new, anionic four-electron donor-based (type I) palladacycle-catalyzed sequential reaction of 2-bromobenzaldehydes with arylboronic acids based on the addition reaction, cyclization via C-H activation-oxidation sequence is described. Our study provided an efficient access to a variety of substituted fluorenones/indenofluorenediones from readily available arylboronic acids and 2-bromobenzaldehydes.

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