Cas 1026293-89-9,2-methyl-1-(4-methylphenyl)-5-(2-oxopropyl)-4,5,6,7-tetrahydro-1H-4-indolone

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Check Digit Verification of cas no

The CAS Registry Mumber 1026293-89-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,6,2,9 and 3 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1026293-89:
(9*1)+(8*0)+(7*2)+(6*6)+(5*2)+(4*9)+(3*3)+(2*8)+(1*9)=139
139 % 10 = 9
So 1026293-89-9 is a valid CAS Registry Number.

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1026293-89-9Relevant academic research and scientific papers

1,3-Cyclohexanedione as the precursor of C4X-C6-C4Y systems. Synthesis of pyrrolo[2,3-e]indoles and thieno[2,3-e]indoles

Martinez, Roberto,Oloarte, Juan Sandoval,Avila, Gustavo

, p. 585 - 589 (2007/10/03)

A novel synthesis of substituted pyrrolo[2,3-e]indoles and thieno[2,3- e]indoles is described. This new approach uses 1,3-cyclohexanedione as the starting material. Diketone intermediates are obtained in four steps from the aforementioned ketone. Using these intermediates, the title compounds are synthesized efficiently.

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