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1254211-28-3

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1254211-28-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1254211-28-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,4,2,1 and 1 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1254211-28:
(9*1)+(8*2)+(7*5)+(6*4)+(5*2)+(4*1)+(3*1)+(2*2)+(1*8)=113
113 % 10 = 3
So 1254211-28-3 is a valid CAS Registry Number.

1254211-28-3Relevant articles and documents

Synthesis of 5,6-dihydropyrrolo[2,1-a]isoquinolines featuring an intramolecular radical-oxidative cyclization of polysubstituted pyrroles, and evaluation of their cytotoxic activity

Reyes-Gutierrez, Paul E.,Camacho, Jose R.,Ramirez-Apan, Ma. Teresa,Osornio, Yazmin M.,Martinez, Roberto

experimental part, p. 4374 - 4382 (2010/11/04)

A three-step protocol for the synthesis of 1,2,3,8,9-pentasubstituted-5,6- dihydropyrrolo[2,1-a]isoquinolines is described, using van LeuseN′s polysubstituted pyrrole construction followed by intramolecular radical-oxidative cyclization of the isoquinoline system. The cytotoxic activities of the dihydropyrroloisoquinolines were tested on six tumor cell lines. Preliminary structure-activity studies revealed the importance of the identity of the aromatic substituent at the C-2 position, particularly a phenyl, m-(amino) phenyl or m-(cyclohexylmethylpiperazinamide) phenyl substituent, for cytotoxic activity.

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