There are two independent 2-(3-hy-droxy-benzyl-amino)-acetic acid mol-ecules, C(9)H(11)NO(3), in the asymmetric unit of the title compound. The dihedral angle between the benzene rings of the two independent mol-ecules is 58.12 (4)°. The crystal packing is stablized by inter-molecular O-H⋯O and N-H⋯O hydrogen bonds.

In the title compound, C(14)H(19)N(3)S, the cyclo-hexane ring has a chair conformation. The almost planar amino-thio-urea unit (r.m.s. deviation = 0.0062 Å) is aligned at a dihedral angle of 45.23 (8)° with respect to the benzene ring. Inter-molecular N-H⋯N and N-H⋯S hydrogen bonding stabilizes the crystal structure.

The title compound, C(26)H(24)N(2)O(2), features a benzene ring fused with a seven-membered diazepine ring; the latter ring adopts a boat conformation (with the allyl-dimethyl-amino-methyl-bearing C atom as the prow and the fused-ring C atoms as the stern).

The mol-ecule of the title Zn(II) complex, [Zn(C(9)H(10)NO(2))(2)(C(6)H(6)N(2)O)(H(2)O)(2)], contains two 4-(dimethyl-amino)benzoate (DMAB) ligands, one isonicotinamide (INA) ligand and two water mol-ecules; one of the DMAB ions acts as a bidentate ligand while the other and INA are monodentate ligands. The four O atoms in the equatorial plane around the Zn atom form a distorted square-planar a...

The title compound, C(13)H(13)N(2) (+)·I(-), is a derivative of 1-amino-pyridinium iodide. The pyridine and benzene rings are oriented at a dihedral angle of 45.78 (3)°. In the crystal structure, weak inter-molecular C-H⋯I hydrogen bonds link the mol-ecules.

In the title compound, C(7)H(8)N(2)O(4)S, the nitro group is twisted by 9.61 (2)° relative to the benzene ring. In the crystal, mol-ecules are linked by N-H⋯O and N-H⋯(O,O) hydrogen bonds between the amino and sulfonyl groups, forming layers parallel to (001).

In the title compound, C(12)H(11)BrN(2)O, the 4-bromo-benzaldehyde and 5-amino-3,4-dimethyl-isoxazole units are oriented at a dihedral angle of 4.89 (8)°. In the crystal, weak π-π inter-actions are present between the benzene rings at a centroid-centroid distance of 3.7862 (14) Å.

The title compound, C7H2ClF3O2, was prepared by the chlorination of 3-amino-2,4,5-trifluoro-benzoic acid. The carboxyl group is twisted relative to the benzene ring by 6.8 (1)°. In the crystal, pairs of O-H⋯O hydrogen bonds link mol-ecules into typical centrosymmetric carb-oxy-lic acid dimers. These dimers are arranged into sheets parallel to (-103).

In the title compound, C(10)H(13)Br(2)N, the amino N atom is essentially coplanar with the benzene ring, with an r.m.s. deviation of 0.004 Å. Weak intra-molecular N-H⋯Br hydrogen bonds occur. In the crystal, mol-ecules are linked into a zigzag chain parallel to the b axis by weak N-H⋯N hydrogen bonds.

In the title compound, C(16)H(19)N(3)O(5)S, the dihedral angle between the benzene ring and the carbonyl-amino group is 18.18 (2)°. In the crystal, mol-ecules form centrosymmetric dimers via pairs of N-H⋯N hydrogen bonds. The dimers are connected via N-H⋯O hydrogen bonds into a three-dimensional network..