Naphthol yellow S hydrate para microscopía, for the precipitation of amino acids and peptides, Sigma-Aldrich®
Proveedor: SIGMA ALDRICH MICROSCOPY
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Atención
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M-Clarity™ quality level = MQ200
70540-100G
70540-25G
70540-100GEA
128
EUR
70540-100G
70540-25G
Naphthol yellow S hydrate para microscopía, for the precipitation of amino acids and peptides, Sigma-Aldrich®
Naphthol yellow S hydrate
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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Formula:
C₁₀H₆N₂O₈S·xH₂O Temperatura de almacenaje: Room Temperature |
Número MDL:
MFCD00003958 Núm. CAS: 846-70-8 EINECS: 212-690-2 |
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Resultados test especificaciones
| 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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