| Title:  NPPB CAS Registry Number:  107254-86-4 CAS Name:  5-Nitro-2-[(3-phenylpropyl)amino]benzoic acid Manufacturers' Codes:  HOE-144 Molecular Formula:  C16H16N2O4 Molecular Weight:  300.31 Percent Composition:  C 63.99%, H 5.37%, N 9.33%, O 21.31% Literature References:  Inhibits efflux of ion channels; specificity is cell type dependent.  Prepn:  H. C. Englert et al., DE 3528048; eidem, US 4994493 (1987, 1991 both to Hoechst).  Synthesis and characterization as potassium channel blocker:  K. R. Giles et al., Bioorg. Med. Chem. Lett. 13, 293 (2003).  Blocking kinetics of chloride channels:  J. Dreinhöfer et al., Biochim. Biophys. Acta 946, 135 (1988).  Effect on chloride ion transport:  B. R. Branchini et al., Biochem. Biophys. Res. Commun. 176, 459 (1991); eidem, Arch. Biochem. Biophys. 318, 221 (1995); J.-A. Kim et al., Biochem. Biophys. Res. Commun. 309, 291 (2003). Properties:  Yellow crystals from isopropanol, mp 178-180°.  Soly (mg/ml):  25 DMSO, 10 ethanol. Melting point:  mp 178-180° Use:  Biochemical probe primarily as a Cl- channel blocker.  |