Owing to environmentally-destructive impact of aromatic hydrocarbons, such as benzene, benzene ethyl, toluene, and xylenes or BTEXs, these materials are classified as hazardous pollutants in the air. This study studies cancer and non-cancer risk in District 12 of Tehran Municipality, through these components for two groups of employees or storekeepers and gas station customers. By measuring pol...

Owing to environmentally-destructive impact of aromatic hydrocarbons, such as benzene, benzene ethyl, toluene, and xylenes or BTEXs, these materials are classified as hazardous pollutants in the air. This study studies cancer and non-cancer risk in District 12 of Tehran Municipality, through these components for two groups of employees or storekeepers and gas station customers. By measuring pol...

In the crystal structure of the title compound, C(22)H(17)BrO(6), the quinone ring makes a dihedral angle of 81.84 (3)° with the benzene ring. The chiral C atoms, viz. the ring C atoms bearing the hydr-oxy and bromo-phenyl substituents, exhibit R and S configurations, respectively. The terminal ethyl group of the -CO(2)CH(2)CH(3) group is disordered over two sets of sites with site-occupancy fa...

A new unsymmetric thioether diamine N - ( 2 - ( 2 - aminophenylthio) ethyl) benzene - 1 , 2 - diamine was prepared through the nucleophilic substitution of cysteaminium chloride with 1 - chloro - 2 - nitrobenzene and then the nitro groups of prepared compuond converted to the amine by zinc powder and ammonium chloride. Then, unsymmetric Schiff bass ligand 2 - ((( 2 - (( 2 - (( 2 - (( 2 - hydrox...

The synthesis of novel bis(3-carbazoly1)methane linked bis-benzimidazoles is described. Construction symmetrical on the bis-carbazolylmethane scaffold was succeeded by condensation reaction benzene-1,2-diamine derivatives with bis(9-ethyl-9H-carbazole-3-carbaldehyde). structural analysis targeted compounds 4-7 were confirmed NMR, FT-IR spectroscopy and mass spectrometry. thermal stability final...

In the title compound, C(13)H(15)NO(3), the dihydro-furan-one ring is planar to within 0.012 (4) Å and it forms a dihedral angle of 42.8 (2)° with the benzene ring. The amino-ethyl-idene group is coplanar with the dihydro-furan-one ring. The meth-oxy group is slightly twisted away from the benzene ring. An intra-molecular N-H⋯O hydrogen bond, generating an S(6) ring, is observed. In the crystal...

In the title compound, C(18)H(18)O(5), the dihedral angle between the two benzene rings is 55.2 (3)°. The ethyl acrylate linkage is planar and forms dihedral angles of 21.3 (3) and 41.0 (3)°, respectively, with the hydroxy-phenyl and methoxy-phenyl rings. In the crystal structure, mol-ecules are linked into zigzag chains along the b axis by O-H⋯O hydrogen bonds.

The title compound, C(20)H(24)N(2)O(2)S(2), consists of a tetra-cyclic ring system containing an azocino skeleton with ethyl, dithiol-ane and methoxy-methyl groups as substituents. The benzene and five-membered rings are nearly coplanar, with a dihedral angle of 2.78 (11)°. The dithiol-ane ring adopts an envelope conformation. In the crystal structure, inter-molecular C-H⋯O hydrogen bonds link ...

The title compound, C(21)H(26)Cl(2)O(2), a bis-chloro-methyl derivative of O-ethyl-ated bis-phenol A, exhibits C(2) mol-ecular symmetry. It shows a bent conformation with the two benzene rings nearly perpendicular [dihedral angle = 87.17 (6)°].