Cas 172877-92-8,1-methyl-4-phenylsulfonyl-2-(p-tolyl)-2,4-dihydropyrrolo<3,4-b>indole

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Check Digit Verification of cas no

The CAS Registry Mumber 172877-92-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,2,8,7 and 7 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 172877-92:
(8*1)+(7*7)+(6*2)+(5*8)+(4*7)+(3*7)+(2*9)+(1*2)=178
178 % 10 = 8
So 172877-92-8 is a valid CAS Registry Number.

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172877-92-8Relevant academic research and scientific papers

Synthesis and cycloaddition of 2,4-dihydropyrroloindoles

Jeevanandam, Arumugasamy,Srinivasan, Panayencheri C.

, p. 2663 - 2666 (2007/10/02)

Friedel-Crafts acylation of 2-methyl-1-phenylsulfonylindole 6 gave the 3-acyl derivatives 7 which upon side chain bromination with N-bromosuccinimide (NBS) followed by treatment with primary amines afforded the title compounds 9.Diels-Alder reaction of 9 with dimethyl acetylenedicarboxylate (DMAD) gave the polysubstituted carbazoles 12.

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