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155136-79-1

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155136-79-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 155136-79-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,1,3 and 6 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 155136-79:
(8*1)+(7*5)+(6*5)+(5*1)+(4*3)+(3*6)+(2*7)+(1*9)=131
131 % 10 = 1
So 155136-79-1 is a valid CAS Registry Number.

155136-79-1Relevant articles and documents

2,4-Dimethyl-6H-pyrido[3,2-b]carbazole, an isomer of the antitumor alkaloid ellipticine via the Combes-Beyer reaction

Alunni-Bistocchi,Orvietani,Bittoun,Ricci,Lescot

, p. 817 - 820 (2007/10/02)

The synthesis of 2,4-dimethyl-6H-pyrido[3,2-b]carbazole (2a) and of its 9-methoxy (2b) and 9-hydroxy (2c) derivatives via the Combes-Beyer reaction is described. Pyridocarbazole 2a has been obtained by two different routes. In the course of the synthesis of 2b either a partial or a total demethoxylation has been observed depending on the route employed.

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