Plot No. C40, Road No. 21Y, MIDC, Wagle Industrial Estate, Thane(W)-400604, MH, India
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Congo red, Hi-Cert™/ACS
SKU:
GRM508
Availability:
Out of stock
Currently out of stock — you can still place your order, and the quantity will be fulfilled on backorder.
Only %1 left
As low as
$30.00
CAS Number :
573-58-0
Molecular Formula :
C₃₂H₂₂Na₂N₆O₆S₂
Congo red is an organic compound, the sodium salt of 3,3′-([1,1′-biphenyl]-4,4′-diyl)bis(4-aminonaphthalene-1-sulfonic acid). It is an azo dye. Congo red is water-soluble, yielding a red colloidal solution; its solubility is greater in organic solvents.
Product Identifier
| CAS No. | 573-58-0 |
|---|---|
| EC No. | 209-358-4 |
| C.I. No. | 22120 |
| Molecular Formula | C₃₂H₂₂Na₂N₆O₆S₂ |
| Molecular Weight | 696.66 |
| HS Code | 3212 90 90 |
| Storage | Below 30°C |
| Shelf life | 4 years |
Technical Specification
| Appearance | Red to brown powder |
|---|---|
| Solubility | 20 ppm in water yields clear to slightly turbid solution |
| Visual pH Transition | pH 3.0 (violet) - pH 5.2 (Orange-red) |
| Absorption maxima | 497 - 500 nm (20 ppm in water at pH 5.2) |
| Loss on drying (at 105°C, 2 hr) | <= 8.0% |
Safety Information
| Signal Word | Danger |
|---|---|
| Hazard Statement(s) | H350-H361d |
| Precautionary Statement(s) | P201-P280-P308+P313 |
| UN No. | Not dangerous goods |
| Class | - |
| Packing Group | - |
| RTECS | QK1400000 |
| WGK | 3 |
| Product Name | Congo red, Hi-Cert™/ACS |
|---|---|
| SKU | GRM508 |
| CAS No | 573-58-0 |
| EC No. | 209-358-4 |
| Molecular formula | C₃₂H₂₂Na₂N₆O₆S₂ |
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