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185011-61-4

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185011-61-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 185011-61-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,5,0,1 and 1 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 185011-61:
(8*1)+(7*8)+(6*5)+(5*0)+(4*1)+(3*1)+(2*6)+(1*1)=114
114 % 10 = 4
So 185011-61-4 is a valid CAS Registry Number.

185011-61-4Downstream Products

185011-61-4Relevant articles and documents

Alkali-induced Formation of ortho-Semidines from 3-Nitro- and 3-Azocarbazoles - Synthesis of 8,16-Dialkyldiindolo[3,2-a,d]phenazines

Fanghaenel,Chtcheglov

, p. 731 - 737 (2007/10/03)

The ortho-semidines 9-alkyl-4-(9-alkylcarbazol-3-ylamino)-3-aminocarbazoles (2a-d) are formed either by reduction of 9-alkyl-3-nitro-carbazoles (1a-d) or of the azo-(6) or the azoxycarbazoles (7) with zinc in alkaline alcoholic solution. It could be shown by cross experiments that the semidines 2 result from an intramolecular rearrangement. The compounds 2a-d are oxidized by air or H2O2 to the 8,16-dialkyldiindolo[3,2-a,d]phenazines (3a-d). Reduction of 1a-c with Raney-alloy affords the 9-alkyl-3-azoxycarbazoles 7a-c in good yields.

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