When considering your question, the initial response was that Fast Red TR is typically used for light microscopy. I consulted Conn's Biological Stains, 10th Edition from the Biological Stain Commission and found a reference for its use in fluorescence microscopy in an article by Lizard, G et al (1997). The article is titled "Detection of human papillomavirus DNA in genital lesion by enzymatic in situ hybridization with fast red and laser confocal microscopy" and was published in the Histochemical Journal (29: 544-554).
F4648
Fast Red TR/Naphthol AS-MX
SIGMAFAST™, fluorogenic, tablet
Sinónimos:
4-Chloro-2-methylbenzenediazonium / 3-Hydroxy-2-naphthoic acid 2,4-dimethylanilide phosphate tablets
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SIGMAFAST™ Fast Red TR/Naphthol AS-MX Tablets, tablet, To prepare 1 mL
Quality Segment
form
tablet
solubility
water: 1 tablet/mL, clear to hazy, colorless to faintly yellow
storage temp.
−20°C
Application
Developed for use as a precipitating substrate for the detection of alkaline phosphatase activity in immunochemistry. Primary uses are in immunohistology, immunoblotting, or dot blotting. SIGMAFAST™ Fast Red TR/Naphthol AS-MX tablets contain 0.6 mM levamisole to block endogenous alkaline phosphatase activity. SIGMAFAST™ Fast Red TR/Naphthol AS-MX Tablets require no additional steps or buffers to prepare an active substrate solution.
SIGMAFAST Fast Red TR/Naphthol AS-MX Tablets has been used:
- in alkaline phosphatase staining in organ sections
- for staining chondrogenic spheroids in immunohistochemistry studies
- for the detection of hybridization signals in in situ mRNA hybridization studies of human palatine tonsils sections
Preparation Note
Each tablet dissolved in 1 mL deionized water yields a ready-to-use buffered solution.
Legal Information
SIGMAFAST is a trademark of Sigma-Aldrich Co. LLC
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| solubility water: 1 tablet/mL, clear to hazy, colorless to faintly yellow | solubility - | solubility water: 0.25 tablet/mL, clear, colorless | solubility deionized water: soluble 5 mL |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| form tablet | form tablet | form tablet | form tablet |
| storage temp. −20°C | storage temp. −20°C | storage temp. −20°C | storage temp. −20°C |
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signalword
Danger
hcodes
Hazard Classifications
Aquatic Chronic 2 - Eye Dam. 1 - Skin Corr. 1C
Clase de almacenamiento
8A - Combustible corrosive hazardous materials
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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Número de artículo de comercio global
| SKU | GTIN |
|---|---|
| F4648-50SET | 04061835556847 |
| F4648-5SET | 04061833617823 |
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Could product F4648 be used with a 543 laser system?
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