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1187488-10-3

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1187488-10-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1187488-10-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,7,4,8 and 8 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1187488-10:
(9*1)+(8*1)+(7*8)+(6*7)+(5*4)+(4*8)+(3*8)+(2*1)+(1*0)=193
193 % 10 = 3
So 1187488-10-3 is a valid CAS Registry Number.

1187488-10-3Downstream Products

1187488-10-3Relevant articles and documents

Quinone methides tethered to naphthalene diimides as selective G-quadruplex alkylating agents

Di Antonio, Marco,Doria, Filippo,Richter, Sara N.,Bertipaglia, Carolina,Mella, Mariella,Sissi, Claudia,Palumbo, Manlio,Freccero, Mauro

experimental part, p. 13132 - 13141 (2009/12/08)

We have developed novel G-quadruplex (G-4) ligand/alkylating hybrid structures, tethering the naphthalene diimide moiety to quaternary ammonium salts of Mannich bases, as quinone-methide precursors, activatable by mild thermal digestion (40°C). The bis-substituted naphthalene diimides were efficiently synthesized, and their reactivity as activatable bis-alkylating agents was investigated in the presence of thiols and amines in aqueous buffered solutions. The electrophilic intermediate, quinonemethide, involved in the alkylation process was trapped, in the presence of ethyl vinyl ether, in a hetero Diels-Alder [4 + 2] cycloaddition reaction, yielding a substituted 2-ethoxychroman. The DNA recognition and alkylation properties of these new derivatives were investigated by gel electrophoresis, circular dichroism, and enzymatic assays. The alkylation process occurred preferentially on the G-4 structure in comparison to other DNA conformations. By dissecting reversible recognition and alkylation events, we found that the reversible process is a prerequisite to DNA alkylation, which in turn reinforces the G-quadruplex structural rearrangement.

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