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1239703-25-3

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1239703-25-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1239703-25-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,9,7,0 and 3 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1239703-25:
(9*1)+(8*2)+(7*3)+(6*9)+(5*7)+(4*0)+(3*3)+(2*2)+(1*5)=153
153 % 10 = 3
So 1239703-25-3 is a valid CAS Registry Number.

1239703-25-3Relevant articles and documents

Synthesis and biological activity of halophenols as potent antioxidant and cytoprotective agents

Zhao, Wanyi,Feng, Xiue,Ban, Shurong,Lin, Wenhan,Li, Qingshan

scheme or table, p. 4132 - 4134 (2010/08/20)

A series of new bromophenols and chlorophenols were prepared by a practical route. The in vitro antioxidative activity of the halophenols was evaluated by the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical-scavenging assay, and their cytoprotective activity was also tested on hydrogen peroxide (H2O2)-induced injury in human umbilical vein endothelial cells (HUVEC). All halophenols tested displayed moderate to good DPPH radical-scavenging activity, and two bromophenols, 2,3′-dibromo-4,5,6′-trihydroxydiphenylmethanone (16c) and 2,3-dibromo-4,5-dihydroxydiphenylmethanone (17c) exhibited high protective activity against H2O2-induced injury in HUVEC with EC50 values of 0.4 and 0.8 μM, respectively. The preliminary structure-activity relationships of these compounds were also investigated in order to determine the essential structures required for their bioactivities.

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