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181704-70-1

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181704-70-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 181704-70-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,1,7,0 and 4 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 181704-70:
(8*1)+(7*8)+(6*1)+(5*7)+(4*0)+(3*4)+(2*7)+(1*0)=131
131 % 10 = 1
So 181704-70-1 is a valid CAS Registry Number.

181704-70-1Relevant articles and documents

One pot synthesis of substituted dihydroindeno[1,2-b]indoles and dihydrobenzo[a]carbazoles by photostimulated reactions of o-iodoaniline with carbanions by the SRN1 mechanism

Barolo, Silvia M.,Rosales, Cecire,Angel Guio, Jorge E.,Rossi, Roberto A.

, p. 695 - 699 (2007/10/03)

The photostimulated reaction of enolate anions of cyclic aromatic ketones such as substituted indan-1-ones and 3,4-dihydro-2H-naphthalen-1-one with o-iodoaniline in DMSO affords 1-, 2-, 3-, and 4-methoxy-5,10-dihydroindeno[1,2- b]indoles (34-40%), 1,2-, 1,4-, and 2,3-dimethoxy-5,10-dihydroindeno[1,2-b]- indoles (31-43%), and 1-, 2-, and 3-methoxy-5,11-dihydro-6H-benzo[a]carbazoles (42-61%) by the SRN1 mechanism in one pot reactions.

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