Pyranine
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IUPAC name
Trisodium 8-hydroxypyrene-1,3,6-trisulfonate
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Other names
8-Hydroxypyrene-1,3,6-trisulfonic acid; Solvent Green 7; HPTS; Sulfonated hydroxy pyrene trisodium salt
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Identifiers | |
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3D model (JSmol)
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ECHA InfoCard | 100.026.166 |
EC Number |
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PubChem CID
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UNII | |
CompTox Dashboard (EPA)
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Properties | |
C16H7Na3O10S3 | |
Molar mass | 524.37 g·mol−1 |
Appearance | Yellow-green crystalline powder |
Soluble | |
Hazards | |
GHS labelling:[1] | |
Signal word
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Warning |
H315, H319, H335 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
what is ?) | (|
Infobox references | |
Pyranine is a hydrophilic, pH-sensitive fluorescent dye from the group of chemicals known as arylsulfonates.[2][3] Pyranine is soluble in water and has applications as a coloring agent, biological stain, optical detecting reagent, and a pH indicator.[4][5] One example would be the measurement of intracellular pH.[6] Pyranine is also found in yellow highlighters, giving them their characteristic fluorescence and bright yellow-green colour. It is also found in some types of soap.[7]
Synthesis[]
It is synthesized from pyrenetetrasulfonic acid and a solution of sodium hydroxide in water under reflux.[8] The trisodium salt crystallizes as yellow needles when adding an aqueous solution of sodium chloride.
See also[]
References[]
- ^ "C&L Inventory". echa.europa.eu. Retrieved 13 December 2021.
- ^ "chem industry entry".
- ^ "Comparative Toxicogenomics Database entry".
- ^ "chemical land 21 entry".
- ^ "Sci-Toys entry".
- ^ "Loading pyranine via purinergic receptors Bing by Siang Gan".
- ^ http://householdproducts.nlm.nih.gov/cgi-bin/household/brands?tbl=chem&id=92
- ^ Tietze, Ernst; Bayer, Otto (1939). "Die Sulfosäuren des Pyrens und ihre Abkömmlinge". Justus Liebig's Annalen der Chemie. 540 (1): 189–210. doi:10.1002/jlac.19395400113. ISSN 0075-4617.
External links[]
Categories:
- Staining dyes
- Fluorescent dyes
- Sulfonates
- Pyrenes
- Phenols
- Organic sodium salts