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C30H20O4N2Cl2S2, Orthorhombic, Pca21, a = 16.9808(14) Å, b = 7.5227(6) Å, c = 20.8027(16) Å, V = 2657.4(4) Å3, Z = 4, Rgt(F) = 0.0642, wRref(F2) = 0.1809, T = 293 K.

C15H16ClNO2, triclinic, P1‾$‾{1}$ (no. 2), a = 7.4339(12) Å, b = 8.2564(14) Å, c = 12.184(2) Å, α = 108.804(6)∘, β = 93.672(5)∘, γ = 94.373(6)∘, V = 702.8(2) Å3, Z = 2, Rgt(F) = 0.0650, wRref(F2) = 0.1974, T = 273 K.

C16H8O4, monoclinic, Pc (no. 7), a = 3.7133(1) Å, b = 9.7214(4) (2) Å, c = 15.5765(6) Å, β = 96.121(2)°, V = 559.08(3) Å3, Z = 2, Rgt(F) = 0.0506, wRref(F2) = 0.1274, T = 150(2) K.

C23H13NO4, monoclinic, P21/n (no. 14), a = 11.6537(6) Å, b = 5.1315(2) Å, c = 26.8047(13) Å, β = 96.266(3)°, V = 1593.4(13) Å3, Z = 4, Rgt(F) = 0.0531, wRref(F2) = 0.1432, T = 90.0(5) K.

C23H24N4O9S, triclinic, P1̄ (no. 2), a = 8.297(1) Å, b = 11.199(1) Å, c = 13.876(2) Å, α = 88.856(2)°, β = 76.540(2)°, γ = 80.098(2)°, V = 1235.0 Å3, Z = 2, Rgt(F) = 0.0405, wRref(F2) = 0.1084, T = 296 K.

C21H20N4O7S, monoclinic, P21/c (no. 14), a = 17.003(2) Å, b = 14.403(2) Å, c = 9.211(1) Å, β = 97.941(2)°, V = 2233.9 Å3, Z = 4, Rgt(F) = 0.0461, wRref(F2) = 0.1261, T = 296 K.

C22H22N4O8S, triclinic, P1¯ (no. 2), a = 8.730(1) Å, b = 9.730(1) Å, c = 14.220(2) Å, α = 97.970(2)°, β = 92.606(2)°, γ = 100.195(2)°, V = 1174.3 Å3, Z = 2, Rgt(F) = 0.0477, wRref(F2) = 0.1357, T = 296 K.

Copyright of Zeitschrift für Kristallographie / New Crystal Structures is the property of De Gruyter and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

C23H13NO4, monoclinic, P21/n (no. 14), a = 11.6537(6) Å, b = 5.1315(2) Å, c = 26.8047(13) Å, β = 96.266(3)°, V = 1593.4(13) Å3, Z = 4, Rgt(F) = 0.0531, wRref(F2) = 0.1432, T = 90.0(5) K. [ABSTRACT FROM AUTHOR]

The article discusses the crystal structure of the title compound di(potassium 2-(2-ethoxy-2-oxoethoxy)-5-(7-(2-ethoxy- 2-oxoethoxy)-4-oxo-4H-chromen-3-yl) benzenesulfonate) (C23H21KO11S). Topics discussed include the source of material, experimental data, and a study on daidzein and its derivatives. Also provided are tables which show information on data collection, atomic coordinates and displacement parameters.

C30H20O4N2Cl2S2, Orthorhombic, Pca21, a = 16.9808(14) Å, b = 7.5227(6) Å, c = 20.8027(16) Å, V = 2657.4(4) Å3, Z = 4, R gt (F) = 0.0642, wR ref(F 2) = 0.1809, T = 293 K. [ABSTRACT FROM AUTHOR]

C15H16ClNO2, triclinic, P1‾$‾{1}$ (no. 2), a = 7.4339(12) Å, b = 8.2564(14) Å, c = 12.184(2) Å, α = 108.804(6)∘, β = 93.672(5)∘, γ = 94.373(6)∘, V = 702.8(2) Å3, Z = 2, Rgt(F) = 0.0650, wRref(F2) = 0.1974, T = 273 K. [ABSTRACT FROM AUTHOR]

Copyright of Zeitschrift für Kristallographie / New Crystal Structures is the property of De Gruyter and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

C16H8O4, monoclinic, Pc (no. 7), a = 3.7133(1) Å, b = 9.7214(4) (2) Å, c = 15.5765(6) Å, β = 96.121(2)°, V = 559.08(3) Å3, Z = 2, Rgt(F) = 0.0506, wRref(F2) = 0.1274, T = 150(2) K. [ABSTRACT FROM AUTHOR]

C23H13NO4, monoclinic, P21/n (no. 14), a = 11.6537(6) Å, b = 5.1315(2) Å, c = 26.8047(13) Å, β = 96.266(3)°, V = 1593.4(13) Å3, Z = 4, Rgt(F) = 0.0531, wRref(F2) = 0.1432, T = 90.0(5) K. [ABSTRACT FROM AUTHOR]

The title compound, C(19)H(19)N(3)O(7)S·CH(3)OH, was synthesized from syringic acid and sulfamethoxazole. The benzene rings make a dihedral angle of 41.8 (1)° and the isoxazole ring is twisted by 74.3 (1)° from the central benzene ring. The crystal packing features O-H⋯O and O-H⋯N hydrogen bonds in which the hy-droxy groups from the main mol-ecule and methanol solvent mol-ecules serve as donor groups.

Using a bioassay-guided fractionation technique, two compounds were isolated from the roots of Incarvillea younghusbandii Sprague through silica gel, reverse-phase C18 column chromatography and reverse-phase HPLC. Their structures were identified as acteoside (1) and isoacteoside (2) by ESI-MS, GC-MS, 1D- and 2D-NMR. 1 and 2 showed *OH scavenging capacity similar with benzoic acid, higher O2*- (or *OH) scavenging capacity than ascorbic acid, far higher hepatic LPO inhibitory activities than 2, 6-di-tert-butyl-4-methylphenol (BHT) or ascorbic acid, and more powerful effect on protecting erythrocytes from oxidative damage than ascorbic acid. The *OH scavenging capacity was positively proportional to the concentrations of 1 and 2 ranging from 0.015 6 to 0.500 0 mg x mL(-1). The hepatic LPO inhibitory activities increased with the increasing concentrations of 1 and 2 from 0.001 9 to 0.250 0 mg x mL(-1), but decreased slightly with the increasing concentration from 0.250 0 to 1.0000 mg x L(-1).