| Product | Chromotropic Acid |
| Synonyms | 4,5 – dihydroxynaphthalene-2,7 Disulfonic Acid |
| CAS # | 148-25-4 |
| Molecular Formula | C10H6O8S2 Na2 |
| Molecular Weight | 320 |
| Physical Appearance | Greyish Colored Wet Material |
| Purity | Min. 60.00% |
| Insolubles | Max. 0.20% |
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