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290331-83-8

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290331-83-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 290331-83-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,0,3,3 and 1 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 290331-83:
(8*2)+(7*9)+(6*0)+(5*3)+(4*3)+(3*1)+(2*8)+(1*3)=128
128 % 10 = 8
So 290331-83-8 is a valid CAS Registry Number.

290331-83-8Relevant articles and documents

A versatile and convenient method for the synthesis of substituted benzo[a]carbazoles and pyrido[2,3-a]carbazoles

De Koning, Charles B.,Michael, Joseph P.,Rousseau, Amanda L.

, p. 1705 - 1713 (2007/10/03)

Treatment of 2-(o-tolyl)- or 2-(3-methyl-2-pyridyl)-substituted indole-3-carbaldehydes with potassium tert-butoxide in DMF at 70-80°C with simultaneous irradiation from a 400 W high-pressure mercury lamp afforded benzo[a]carbazoles and pyrido[2,3-a]carbaz

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