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109023-01-0

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109023-01-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109023-01-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,0,2 and 3 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 109023-01:
(8*1)+(7*0)+(6*9)+(5*0)+(4*2)+(3*3)+(2*0)+(1*1)=80
80 % 10 = 0
So 109023-01-0 is a valid CAS Registry Number.

109023-01-0Relevant articles and documents

Selective C4-F bond cleavage/C-O bond formation of polyfluoroarenes with phenols and benzyl alcohols

Liu, Cuibo,Cao, Liming,Yin, Xuguang,Xu, Haolan,Zhang, Bin

, p. 51 - 60 (2013)

A facile and efficient SNAr method for the synthesis of unsymmetrical polyfluoroaryl ethers via selective C4-F bond cleavage of pentafluorobenzene is reported. The reaction could proceed smoothly without the requirement of additional metals or ligands, and afford a series of the corresponding products in good to high yields. A wide variety of substituted phenols and alcohols provided 1,2,4,5-tetrafluoropheny ether derivatives in regioselective manner.

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