Many benzo[b]furan lignans are known to be biologically active in nature. 2-(3'-Methoxy-4'-hydroxy-phenyl)-5-(3-hydroxypropyl)-7-methoxy-benzo[b]furan-3-carbaldehyde (XH-14) is found as a bioactive component isolated from the plant Salvia miltiorrhiza, commonly known as Danshen, which is a traditional Chinese medicine that is used as a cardiovascular medication. This study examined whether 3 di...

The 5-chloro-8-hydroxy-quinolinium cation in the the title ion pair, C(9)H(7)ClNO(+)·NO(3) (-), is approximately coplanar with the nitrate anion [dihedral angle = 16.1 (1)°]. Two ion pairs are hydrogen bonded (2 × O-H⋯O and 2 × N-H⋯O) about a center of inversion, generating an R(4) (4)(14) ring.

The title compound, C(11)H(14)N(2)O(3), was prepared by the reaction of ethyl carbazate and 1-(2-hydroxy-phen-yl)ethanone. In the crystal structure, mol-ecules are linked by inter-molecular N-H⋯O hydrogen bonds, forming centrosymmetric dimers. An intra-molecular O-H⋯N inter-action also occurs.

SBA-15 was prepared and then functionalized with N-methyl-N’-propyltrimethoxysilyl imidazolium chloride as ionic liquid moiety. The ionic liquid functionalized SBA-15 (SBA-IL) was characterized by different analytical techniques including FT-IR, N2 adsorption-desorption, TGA and SEM image. According to the obtained results it was found that the organic groups were g...

Reactive oxygen species (ROS) are produced in various cells and affect many biologic processes. In this study, we examined the effects of 2-methyl-1,4-naphtoquinone (menadione; vitamin K3) on signal transduction in mast cells. Several lines of evidence suggest that H2O2 affects the antigen-induced responses in mast cells but its mechanism is not clearly understood. Unlike H2O2, menadione produc...