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151368-77-3

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151368-77-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 151368-77-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,1,3,6 and 8 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 151368-77:
(8*1)+(7*5)+(6*1)+(5*3)+(4*6)+(3*8)+(2*7)+(1*7)=133
133 % 10 = 3
So 151368-77-3 is a valid CAS Registry Number.

151368-77-3Relevant articles and documents

Ditopic crown ether-guanidinium ion receptors for the molecular recognition of amino acids and small peptides

Sp?th, Andreas,K?nig, Burkhard

supporting information; experimental part, p. 1859 - 1873 (2010/04/06)

A series of ditopic synthetic receptors based on a crown ether-guanidinium ion recognition motif is reported. The compounds show binding affinity to selected amino acids, including important neurotransmitters. The effect of the distance of the ammonium and the carboxylate ion, the rigidity of the spacer, and the use of pre-organized pyrrole- and pyrene-guanidinium groups on binding affinity and selectivity are discussed.

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