Previously only one of the six disulphide bonds within the βsubunit of bovine thyrotropin (bTSHβ) has been unequivocally assigned. In the present investigation, the fluorescent alkylating reagent 5-N-[(iodoacetamidoethyl)amino]naphthalene-1-sulphonic acid has been employed as part of a double-alkylation strategy to allow the relative reactivities and the location of the six disulphide bonds of ...

In this study, two new salicylideneaniline derivative compounds which are an isomer of each other have been synthesized and characterized by X-Ray Diffraction (XRD) technique, IR spectroscopy, and theoretical method. While (E)-4-(dihydroxyamino)-2-(((4-fluorophenyl)imino) methyl)phenol (1), crystalizes triclinic P-1 space group, (E)-4-(dihydroxyamino)-2-(((3-fluorophenyl)im...

In the title compound, C(9)H(10)ClN(3)O, the semicarbazone group is approximately planar, with an r.m.s. deviation from the mean plane of 0.054 (1) Å. The dihedral angle between the least-squares planes through the semicarbazone group and the benzene ring is 30.46 (5)°. In the solid state, mol-ecules are linked via inter-molecular N-H⋯O and N-H⋯N hydrogen bonds, generating R(2) (2)(9) ring moti...

In many mammals, females form close social bonds with members of their group, usually between kin. Studies of social bonds and their fitness benefits have not been investigated outside primates, and are confounded by the relatedness between individuals in primate groups. Bonds may arise from kin selection and inclusive fitness rather than through direct benefits of association. However, female ...

The title hydrate, C13H14N2O4·H2O, crystallizes with two formula units in the asymmetric unit (Z' = 2). The dihedral angles between the planes of the tetra-hydro-pyrimidine ring and the 4-hy-droxy-phenyl ring and ester group are 86.78 (4) and 6.81 (6)°, respectively, for one mol-ecule and 89.35 (4) and 3.02 (4)° for the other. In the crystal, the organic mol-ecules form a dimer, linked by a pai...

The title compound, C(17)H(25)ClN(3)O(3) (+)·Cl(-)·H(2)O, is a monohydrated hydro-chloride salt of a new derivative of mosapride, which is a pharmaceutical compound possessing gastrointestinal pro-kinetic activity. The chloride anion accepts hydrogen bonds from the NH group of the pyrrolooxazine fused-ring system and from the amine group, and the water mol-ecules form hydrogen bonds that bridge...