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260050-22-4

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260050-22-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 260050-22-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,0,0,5 and 0 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 260050-22:
(8*2)+(7*6)+(6*0)+(5*0)+(4*5)+(3*0)+(2*2)+(1*2)=84
84 % 10 = 4
So 260050-22-4 is a valid CAS Registry Number.

260050-22-4Relevant articles and documents

Synthesis and histamine H3 receptor activity of 4-(n-alkyl)-1H-imidazoles and 4-(omega-phenylalkyl)-1H-imidazoles.

De Esch,Gaffar,Menge,Timmerman

, p. 3003 - 3009 (2007/10/03)

The influence of lipophilic moieties attached to a 4-1H-imidazole ring on the histamine H3 receptor activity was systematically investigated. Series of 4-(n-alkyl)-1H-imidazoles and 4-(omega-phenylalkyl)-1H-imidazoles were prepared, with an alkyl chain varying from 2-9 methylene groups and from 1-9 methylene groups, respectively. The compounds were tested for their activity on the H3 receptor under in vitro conditions. For the 4-(n-alkyl)-1H-imidazoles the activity is proportional to chain length, ranging from a pA2 value of 6.3 +/- 0.2 for 4-(n-propyl)-1H-imidazole to a pA2 value of 7.2 +/- 0.1 for 4-(n-decyl)-1H-imidazole. For the series 4-(omega-phenylalkyl)-4H-imidazoles an optimum in H3 activity was found for the pentylene spacer: 4-(omega-phenylpentyl)-1H-imidazole has a pA2 value of 7.8 +/- 0.1.

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