Order number: 573-58-0
Part number: AC100017264
This Congo Red (C.I. 22120), available in a 25 gram quantity, is classified under the category of Chromogenic Dyes. It is identified as C.I. Direct Red 28 with the CAS Number 573-58-0. Its molecular formula is C32H22N6Na2O6S2, and its Molecular Weight is 696.66 g/mol. This substance belongs to several groups, including Sulphonates (salts), Azo compounds and diazo compounds, Amino compounds, aromatic (amino group on the ring), and Sodium compounds. In the workplace, it is subject to various precautions such as prohibition labels, no smoking signs, no admittance for unauthorized persons, no eating and drinking, use of safety goggles, and wearing safety gloves.
| Name | Value | |
|---|---|---|
| WGK | : | 3 |
| EG-Nr. | : | 209-358-4 |
| CAS No. | : | 573-58-0 |
| Molar mass (M) | : | 696,66 g/mol |
| Colour conversion | : | blue - red |
| Empirical formula | : | C32H22N6Na2O6S2 |
| Melting point (mp) | : | 360 °C |
| Transition range pH | : | 3,0 - 5,2 |
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© 2026 Copyright. All Rights Reserved.