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86439-49-8

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86439-49-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 86439-49-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,6,4,3 and 9 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 86439-49:
(7*8)+(6*6)+(5*4)+(4*3)+(3*9)+(2*4)+(1*9)=168
168 % 10 = 8
So 86439-49-8 is a valid CAS Registry Number.

86439-49-8Downstream Products

86439-49-8Relevant articles and documents

Pyrrolo[1',2':1,2]pyrazino[6,5-b]carbazoles

Lancelot,Gazengel,Rault,Robba

, p. 45 - 51 (1983)

The synthesis of the new heterocycles pyrrolo[1',2':1,2]pyrazino[6,5-b]carbazoles was achieved by the intramolecular cyclisation of 2-(1-pyrrolyl)carbazole derivatives. These latter compounds were obtained by the Clauson-Kaas reaction starting from the corresponding 2-aminocarbazoles, obtained by reduction of 2-nitrocarbazoles. A study of this reduction has shown that the introduction of acetyl grouping in position 9 makes this reaction easier and gives better results than previous methods. 1H-NMR spectra are studied.

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