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1541987-83-0

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1541987-83-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1541987-83-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,4,1,9,8 and 7 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1541987-83:
(9*1)+(8*5)+(7*4)+(6*1)+(5*9)+(4*8)+(3*7)+(2*8)+(1*3)=200
200 % 10 = 0
So 1541987-83-0 is a valid CAS Registry Number.

1541987-83-0Relevant articles and documents

Design and synthesis of heterocyclic cations for specific DNA recognition: From AT-rich to mixed-base-pair DNA sequences

Chai, Yun,Paul, Ananya,Rettig, Michael,Wilson, W. David,Boykin, David W.

, p. 852 - 866 (2014)

The compounds synthesized in this research were designed with the goal of establishing a new paradigm for mixed-base-pair DNA sequence-specific recognition. The design scheme starts with a cell-permeable heterocyclic cation that binds to AT base pair sites in the DNA minor groove. Modifications were introduced in the original compound to include an H-bond accepting group to specifically recognize the G-NH that projects into the minor groove. Therefore, a series of heterocyclic cations substituted with an azabenzimidazole ring has been designed and synthesized for mixed-base-pair DNA recognition. The most successful compound, 12a, had an azabenzimidazole to recognize G and additional modifications for general minor groove interactions. It binds to the DNA site -AAAGTTT- more strongly than the -AAATTT- site without GC and indicates the design success. Structural modifications of 12a generally weakened binding. The interactions of the new compound with a variety of DNA sequences with and without GC base pairs were evaluated by thermal melting analysis, circular dichroism, fluorescence emission spectroscopy, surface plasmon resonance, and molecular modeling.

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