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40893-37-6

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40893-37-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40893-37-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,8,9 and 3 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 40893-37:
(7*4)+(6*0)+(5*8)+(4*9)+(3*3)+(2*3)+(1*7)=126
126 % 10 = 6
So 40893-37-6 is a valid CAS Registry Number.

40893-37-6Relevant articles and documents

Unexpectedly high activity of Zn(OTf)2·6H2O in catalytic Friedel-Crafts acylation reaction

He, Fei,Wu, Huayue,Chen, Jiuxi,Su, Weike

, p. 255 - 264 (2008)

Zn(OTf)2·6H2O was used to promote Friedel-Crafts acylation of aromatics. The work describes the high activity and efficiency of Zn(OTf)2·6H2O in acylation of aromatics, and the catalyst has surpassed most metal triflates in dispensing when dried at high temperature under vacuum before use. Copyright Taylor & Francis Group, LLC.

Light-Driven Carboxylation of o-Alkylphenyl Ketones with CO2

Masuda, Yusuke,Ishida, Naoki,Murakami, Masahiro

supporting information, p. 14063 - 14066 (2015/11/25)

o-Alkylphenyl ketones undergo a C-C bond forming carboxylation reaction with CO2 simply upon irradiation with UV light or even solar light. The reaction presents a clean process exploiting light energy as the driving force for carboxylation of organic molecules with CO2.

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