Zincon sodium salt ≥75% (dye content), Sigma-Aldrich®

Supplier: SIGMA-ALDRICH MICROSCOPY
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201332-1GEA 65.6 GBP
201332-1G 201332-5G
Zincon sodium salt ≥75% (dye content), Sigma-Aldrich®
Zincon sodium salt

Zincon sodium salt has been used to locate zinc in plant tissues by light microscopy.


Zincon is a formazan dye, that serves as a metal indicator and is applicable in chelometric titration. It is used in spectrometric analysis. The metal-zincon complex formed shows a prominent absorption band in the visible region. Zincon is also used in solid support electrophoresis for staining zinc proteins.

Formula: C₂₀H₁₅N₄NaO₆S
Melting Pt: 250 °C
Storage Temperature: Ambient
MDL Number: MFCD00064385
CAS Number: 62625-22-3

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Specification Test Results

Thin layer chromatogr. Corresponds to standard
Solubility (colour) Brown to very dark brown and red to very dark red and red-brown and very dark red-brown
Solubility (turbidity) Opaque
Solubility (method) 1 mg/ml, 0.1N sodium hydroxide
Carbon content 39.0 - 68.8%
Nitrogen content 9.1 - 15.2%
Infrared spectrum Conforms to structure
Wavelength (1) (UV) 489 - 495 nm
Molar absorbancy index (1) ≥10000
Solvent (UV) Methanol
Icp analysis Confirms sodium and sulfur components

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