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155189-57-4

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155189-57-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 155189-57-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,1,8 and 9 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 155189-57:
(8*1)+(7*5)+(6*5)+(5*1)+(4*8)+(3*9)+(2*5)+(1*7)=154
154 % 10 = 4
So 155189-57-4 is a valid CAS Registry Number.

155189-57-4Relevant articles and documents

Synthesis and β-adrenergic activity of new completely aliphatic 3-(methyleneaminoxy)propanolamine derivatives

Balsamo,Gentili,Lapucci,Macchia,Martinelli,Orlandini,Ferni,Pinza

, p. 759 - 766 (2007/10/02)

In a previous paper, it had been found that completely aliphatic 3-(methyleneaminoxy)propanolamine derivatives showed a good β-blocking adrenergic activity directed prevalently towards β2-tracheal receptors. In an attempt to change the β-adrenergic properties of these compounds from antagonist to agonist, while still retaining the β2-selectivity, a series of new completely aliphatic 3-(methyleneaminoxy)propanolamine derivatives were designed in which either a hydroxylic or a methoxylic group was present on the aliphatic portion linked to the oximic carbon. The synthesis of the new compounds and their β-adrenergic activity, evaluated by means of functional tests on isolated preparations, are described and discussed; the results obtained are then rationalised on the basis of their conformational and reactivity characteristics, determined by means of theoretical methods.

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