Amidoschwarz 10 B (Naphtholblauschwarz, Säureschwarz 1) 80% (Farbstoffgehalt), Sigma-Aldrich®

Lieferant: SIGMA ALDRICH MICROSCOPY
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Synonyme: 1-Amino-8-hydroxy-2-((4-nitrophenyl)diazenyl)-7-(phenyldiazenyl)naphthalin-3,6-disulfonsäure Dinatriumsalz

M-Clarity™ Qualitätsstufe = MQ200

195243-100G 195243-25G
195243-100GEA 182 EUR
195243-100G 195243-25G
Amidoschwarz 10 B (Naphtholblauschwarz, Säureschwarz 1) 80% (Farbstoffgehalt), Sigma-Aldrich®
Amidoschwarz 10 B (Naphtholblauschwarz, Säureschwarz 1)

Naphthol blue black (NBB) is an textile diazo dye, with high photo- and thermal-stability. Photoelectrochemical degradation of this dye yields colorless quinone as end product. Pure grade of NBB is generally used for dyeing foodstuffs, drugs and cosmetics. It is also used as a protein stain in chromatography and electrophoresis and as a biological stain. Commercial grade of NBB is a widely used textile dye. It is used in dyeing wool, nylon, silk and in textile printing. In addition, it is also employed for colouring of soaps, anodised aluminum and casein, wood stains and writing ink preparation.


  • Naphthol blue black (NBB) has been used to stain soluble proteins

Formel: C₂₂H₁₄N₆Na₂O₉S₂
Molecular Weight: 616,49 g/mol
Lagertemperatur: Raumtemperatur
MDL: MFCD00004017
CAS-Nummer: 1064-48-8
EINECS: 213-903-1
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Spezifikation Testergebnisse

Appearance (Color) Brown to Very Dark Brown and Black
Appearance (Form) Powder
Infrared spectrum Conforms to Structure
Wavelength c = 0.007g/l in H2O 616 - 622 nm
Extinction Coefficient ≥20000
Wavelength 318 - 324 nm
TLC Consistent With Control Conforms
Solubility (Turbidity) Opaque (c = 1mg/ml; H2O) Conforms
Solubility (Color) Dark Blue to Very Dark Blue
Water (by Karl Fischer) ≤10.0 %
Carbon ≥33.4 %
Nitrogen ≥10.6 %

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