Kikugawa, K Fluorescence of 1,4-dihydropyridine derivatives relevant to age pigments. [electronic resource] - Chemical & pharmaceutical bulletin Nov 1987 - 4656-60 p. digital Publication Type: Journal Article ISSN: 0009-2363 Standard No.: 10.1248/cpb.35.4656 doi Subjects--Topical Terms: Dihydropyridines--analysisPigments, Biological--analysisSpectrometry, FluorescenceSpectrophotometry, Ultraviolet