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222990-70-7

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222990-70-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 222990-70-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,2,9,9 and 0 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 222990-70:
(8*2)+(7*2)+(6*2)+(5*9)+(4*9)+(3*0)+(2*7)+(1*0)=137
137 % 10 = 7
So 222990-70-7 is a valid CAS Registry Number.

222990-70-7Downstream Products

222990-70-7Relevant academic research and scientific papers

Palladium-catalyzed oxidative carbonylation for the synthesis of symmetrical diaryl ketones at atmospheric co pressure

Li, Yang,Lu, Wei,Xue, Dong,Wang, Chao,Liu, Zhao-Tie,Xiao, Jianliang

supporting information, p. 1097 - 1100 (2014/05/20)

A mild and efficient synthesis of symmetrical diaryl ketones by palladium-catalyzed oxidative carbonylation of arylboronic acids with carbon monoxide at atmospheric pressure is reported. Georg Thieme Verlag Stuttgart New York.

Synthesis, characterisation and metal ion binding properties of crown ethers incorporating 4,5-dioxyxanthones

Cox, Brian G.,Hurwood, Tracey V.,Prodi,Montalti,Bolletta,Watt, C. Ian F.

, p. 289 - 296 (2007/10/03)

An efficient preparation of 4,5-dihydroxyxanthone, 5, is described, and its incorporation into crown ethers with 18-, 21- and 24-membered macrocyclic arrays, 3 (n = 3, 4 and 5), and a model compound, 4,5-diethoxyxanthone, 10. Metal ion complexation of the

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