Shiny, green crystals that form a red aqueous solution Pyronine Y produces a pale yellow Autofluorescence in ultraviolet light. It is used as a bacteriological and biological Fluorochrome. It has a mean excitation wavelength of 410 nm (violet/blue) and a mean emission wavelength of 540 nm (Wolbers et al., 1990).
Synonyms and Related Terms
pyronin; CI 45005; 3,6-bis(dimethylamino)xanthylium chloride; pyronine G; pyronin yellow; tetramethyldiaminoxanthylium chloride
Physical and Chemical Properties
Soluble in water and ethanol.
|Melting Point||250-260 C|
- Fisher Scientific: MSDS
Resources and Citations
- Richard C. Wolbers, Nanette T. Sterman, Chris Stavroudis, Notes for Workshop on New Methods in the Cleaning of Paintings, J.Paul Getty Trust, Los Angeles, 1990 Comment: mean excitation wavelength of 410 nm -violet/blueviolet - and mean emission wavelength=540 nm
- The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 8190: abs. max = 552 nm
- Aldrich Chemical Catalog Comment: abs. max = 548 nm