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134168-89-1

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134168-89-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 134168-89-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,1,6 and 8 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 134168-89:
(8*1)+(7*3)+(6*4)+(5*1)+(4*6)+(3*8)+(2*8)+(1*9)=131
131 % 10 = 1
So 134168-89-1 is a valid CAS Registry Number.

134168-89-1Relevant articles and documents

Synthesis and structure-activity relationships of novel phenylcyanoguanidine derivatives as potassium channel openers

Yoshiizumi, Kazuya,Ikeda, Shoji,Goto, Katsumi,Morita, Tominori,Nishimura, Noriyasu,Sukamoto, Takayuki,Yoshino, Kohichiro

, p. 2042 - 2050 (2007/10/03)

3,5-Di-substituted phenylcyanoguanidine derivatives with halogen, cyano, and/or nitro groups at the 3- and 5-positions of the benzene ring exhibited very strong smooth muscle relaxation activity in vitro, as compared to pinacidil. Among them, N-(3-chloro-5-cyanophenyl)-N'-cyano-N''-tert- pentylguanidine (5s) showed 27-fold more potent activity than pinacidil, and exhibited a stronger and more lasting antihypertensive effect than pinacidil by oral administration to spontaneously hypertensive rats. We propose a new pharmacophore model in which the essential factors for binding to the potassium channel are an NH and a bulky alkyl group.

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