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1430098-31-9

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1430098-31-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1430098-31-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,3,0,0,9 and 8 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1430098-31:
(9*1)+(8*4)+(7*3)+(6*0)+(5*0)+(4*9)+(3*8)+(2*3)+(1*1)=129
129 % 10 = 9
So 1430098-31-9 is a valid CAS Registry Number.

1430098-31-9Relevant articles and documents

Stabilization of chiral helices for saccharide-linked ethynylpyridine oligomers possessing a conformationally well-defined linkage

Kayamori, Fumihiro,Abe, Hajime,Inouye, Masahiko

, p. 1677 - 1682 (2013/04/10)

Tetrameric and octameric 2,6-pyridylene ethynylene oligomers linked to a β-D-glucopyranoside template through an o-phenylene linker were prepared and studied for their higher-order structure. These oligomers formed chiral helical structures through intramolecular hydrogen bonding between the ethynylpyridine moiety and the glucoside template. The rigidity of the o-phenylene linker stabilizes the helical structure to improve its CD activity and resistance against protic surroundings. Furthermore, the helical stabilization was enhanced by the addition of Cu(OTf)2 and Zn(NO 3)2 salts. Tetrameric and octameric 2,6-pyridylene ethynylene oligomers joined to a β-D-glucopyranoside by a o-phenylene linker were prepared and their higher-order structure studied. The chiral helical structures formed by intramolecular H-bonding and linker stabilization improve CD activity and resistance to protic surroundings. Stabilization was enhanced with the addition of Cu(OTf)2 and Zn(NO3) 2 salts. Copyright

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