Naphthol yellow S hydrate för mikroskopi, for the precipitation of amino acids and peptides, Sigma-Aldrich®
Leverantör: SIGMA-ALDRICH MICROSCOPY
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Varning
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Synonyms:
Flavianic acid disodium salt, Disodium 2,4-Dinitro-1-naphthol-7-sulphonate, 8-Hydroxy-5,7-dinitro-2-naphthalenesulphonic acid disodium salt, 2,4-Dinitro-1-naphthol-7-sulphonic acid disodium salt, Disodium 8-Hydroxy-5,7-dinitro-2-naphthalenesulphonate
M-Clarity™ quality level = MQ200
Naphthol yellow S has been used as a staining agent in fixed human embryonic stem cell-derived cardiomyocytes.
Naphthol yellow S (NYS) is used as a stain for protein basic groups. It is an acidic dye and forms a NYS-protein complex at acidic pH. Combination of feulgen and NYS provides DNA to protein ratio.
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Formel:
C₁₀H₆N₂O₈S·xH₂O MW: 358,19 g/mol (anhy) Storage Temperature: Room Temperature |
MDL Number:
MFCD00003958 CAS nummer: 846-70-8 EINECS: 212-690-2 |
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Specifikation testresultat
| Appearance (colour) | Light yellow to yellow and light orange to orange |
| Appearance (form) | Powder |
| Thin layer chromatogr. | Corresponds to standard |
| Solubility (colour) | Yellow to very dark yellow and orange to very dark orange |
| Solubility (turbidity) | -- |
| Solubility (method) | 0.5 g in 10 ml methanol/water 1:1 |
| Wavelength (1) (UV) | 423 - 433 nm |
| Extinction (1%/1 cm) (1) (UV) | ≥275 |
| Wavelength (2) (UV) | 387 - 397 nm |
| Extinction (1%/1 cm) (2) (UV) | ≥250 |
| Solvent (UV) | Water |
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