1-Amino-2-naphthol-4-sulfonic Acid
95%
Reagent
Code: #114665
Alias
1-amino-2-naphthol-4-sulfonic acid; 4-amino-3-hydroxy-1-naphthalenesulfonic acid, 1-amino-2-naphthol-4-sulfonic acid, 4-amino-3-hydroxynaphthalene -1-sulfonic acid, 1-amino-2-naphthol-4-sulfonic acid, 1,2,4-acid
CAS Number
116-63-2
science Other reagents with same CAS 116-63-2
blur_circular Chemical Specifications
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Molecular Information
Weight
239.25 g/mol
Formula
C₁₀H₉NO₄S
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Registry Numbers
EC Number
204-147-3
MDL Number
MFCD00004019
thermostat
Physical Properties
Melting Point
290 °C (dec.)(lit.)
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Storage & Handling
Storage
room temperature
description Product Description
Widely used as an intermediate in the synthesis of azo dyes, it plays a crucial role in producing vibrant and colorfast dyes for textiles, paper, and leather industries. Its sulfonic acid group enhances water solubility, making it suitable for dye formulations. Additionally, it serves as a reagent in analytical chemistry for detecting and quantifying various metal ions due to its chelating properties. In the pharmaceutical sector, it is utilized in the preparation of certain active compounds and intermediates. Its versatility also extends to the production of organic pigments and as a component in photographic developers.
format_list_bulleted Product Specification
| Test Parameter | Specification |
|---|---|
| Loss on Drying | 0-3 |
| Purity (Titration by NaOH) (Calculated on Dried Substance) | 94.5-100 |
| Purity (Titration by NaOH) (Calculated on Dried Substance) | 94.5-100 |
| Appearance | White to red and pink to purple powder |
| Dissolving Sodium Sulfite Test | Pass |
| Infrared Spectrum | Conforms to Structure |
| Melting Point | 290°C |
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