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122709-55-1

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122709-55-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 122709-55-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,2,7,0 and 9 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 122709-55:
(8*1)+(7*2)+(6*2)+(5*7)+(4*0)+(3*9)+(2*5)+(1*5)=111
111 % 10 = 1
So 122709-55-1 is a valid CAS Registry Number.

122709-55-1Relevant articles and documents

Intermolecular trapping by indole of a spiroindolenine intermediate formed during the Bischler-Napieralski cyclisation of N-acetyltryptamine

Frost, Jonathan R.,Gaudilliere, Bernard R.P.,Kauffmann, Elisabeth,Loyaux, Denis,Normand, Nadine,Petry, Genevieve,Poirier, Philippe,Wenkert, Ernest,Wick, Alexander E.

, p. 175 - 182 (2007/10/02)

The Bischler-Napieralski cyclisation of N-acetyltryptamine (1a) in the presence of indole (15) affords a moderate yield of the diastereomeric spiroindolines 9 and 10 suggesting the intermediacy of a spiroindolenine 2a in this reaction. Evidence is provided to show that the minor reaction products 2-methyltryptamine (11), tris-(3-indolyl)methane (12) and 6-[(o-aminophenyl) methyl]-5,11-dihydroindolo[3,2-b]carbazole (13) are derived from the spiroindolines 9 and 10.

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