Detail of "80480-15-5"

Reference

Improvement of chemical analysis of antibiotics

Improvement of chemical analysis of antibiotics. IV. Fluorodensitometric determination of polyether antibiotics. Asukabe, H.; Sasaki, T.; Harada, K. I.; Suzuki, M.; Oka, H. (Fac. Pharm., Meijo Univ., Nagoya 468, Japan). J. Chromatogr., 295(2), 453-61 (English) 1984. CODEN: JOCRAM. ISSN: 0021-9673. DOCUMENT TYPE: Journal CA Section: 64 (Pharmaceutical Analysis) A fluorodensitometric detn. of the polyether antibiotics, salinomycin [53003-10-4] and monensin [17090-79-8], on silica gel thin-layer plates based on fluorescence labeling of carboxylate with 1-bromoacetylpyrene [80480-15-5] was established. The optimum conditions for producing salinomycin 1-pyrenacyl ester are described. Using Kryptofix 222 [23978-09-8] as a catalyst, the reaction fluorescence yield is significantly higher than that using dicyclohexyl-18-crown-6 [16069-36-6]. There is a linear relationship between the fluorescence intensity and the amt. of salinomycin and monensin between 2 and 14 ng and the detection limits are 100 pg.

Estimation of polarity and fluidity of colloidal interfaces and biosurfaces using rhamnolipid B pyrenacylester as surface-active fluorescent probe

Estimation of polarity and fluidity of colloidal interfaces and biosurfaces using rhamnolipid B pyrenacylester as surface-active fluorescent probe. Ishigami, Yutaka; Ishii, Fumiyoshi; Choi, Young Kook; Kajiuchi, Toshio ( National Inst. Materials Chemical Res., Ibaraki 305, Japan). Colloids and Surfaces, B: Biointerfaces, 7(5/6), 215-220 (English) 1996 Elsevier. CODEN: CSBBEQ. ISSN: 0927-7765. DOCUMENT TYPE: Journal CA Section: 9 (Biochemical Methods) Section cross-reference(s): 6, 66 Fluorescent probes are useful to monitor the polarity and fluidity of microenvironments. 80480-15-5 and 126748-57-0 are cas registry numbers of chemicals which are used as reagents here. Therefore, a new amphiphilic fluorescent probe, the pyrenacylester of Rhamnolipid B, was prepd. from biosurfactant (Rhamnolipid B) and pyrene. As a result of its surface activity, this probe was expected to be able to penetrate into various kinds of microdomains such as the environments of org. solvents, emulsions, dispersions, surfaces of biomembranes and polymers. .