| Chinese alias | 偶氮紫, 4-（4-硝基苯偶氮）间苯二酚、镁离子 I、4-(4-NITROPHENYLAZO)RESORCINOL |
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| CAS | 74-39-5 |
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| Formula | C12H9N3O4 |
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| MW | 259.22 |
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| Appearance | red powder |
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| MDL | MFCD00007310 |
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| Melting point | 195-200 °C (lit.) |
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| Boiling point | 402.47°C (rough estimate) |
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| Storage condition | room temp |
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| Chemical Stability | Stable. Incompatible with strong oxidizing agents, strong bases. |
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| Safe Property | S26-S36 |
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| Hazard Category Code | R36/38 |
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| Water Solubility | Insoluble in water，Soluble in dilute sodium hydroxide. |
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| 特性 | * |
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| 用途 | 镁的测定，吸附指示剂。 |
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| Storage | room temp |
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| Smiles | N(=NC1=C(O)C=C(O)C=C1)C2=CC=C(N(=O)=O)C=C2 |
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| InchiKey | NGPGYVQZGRJHFJ-UHFFFAOYSA-N |
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