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1-benzenesulfonyl-5-bromo-1,5,6,7-tetrahydro-indol-4-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

27866-51-9

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27866-51-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 27866-51-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,8,6 and 6 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 27866-51:
(7*2)+(6*7)+(5*8)+(4*6)+(3*6)+(2*5)+(1*1)=149
149 % 10 = 9
So 27866-51-9 is a valid CAS Registry Number.

27866-51-9Relevant academic research and scientific papers

Selective halogenation of 4-oxo-4,5,6,7-tetrahydroindoles to 5-halo-4-oxo-4,5,6,7-tetrahydroindoles with copper(II) halides

Matsumoto, Masakatsu,Ishida, Yasuko,Watanabe, Nobuko

, p. 165 - 170 (2007/10/02)

Halogenation of 4-oxo-4,5,6,7-tetrahydroindoles with copper(II) bromide or copper(II) chloride gave selectively 5-halo-4-oxo-4,5,6,7-tetrahydroindoles, which were easily transformed to 4-hydroxyindoles by the action of lithium halide/lithium carbonate in

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