Pyronine Y
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Description
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
Other Properties
Soluble in water and ethanol.
| Composition | C17H19ClN2O |
|---|---|
| CAS | 92-32-0 |
| Melting Point | 250-260 |
| Molecular Weight | mol. wt. = 302.80 |
Hazards and Safety
Fisher Scientific: MSDS
Additional Information
R. Wolbers, N. Sterman, C. Stavroudis, "Notes for Workshop on New Methods in the Cleaning of Paintings", Getty Conservation Institute, Los Angeles, 1990.
Sources Checked for Data in Record
- 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