| Identification | |
| Name: | Methyl Orange |
| Synonyms: | 4-[4-(Dimethylamino)phenylazo]benzenesulfonic acid, sodium salt; Acid Orange 52 C.I. 13025; C.I. 13025; Helianthise; MO; methyl orange for microscopy; METHYL ORANGE SODIUM SALT; sodium 4-(4-dimethylaminophenylazo)benzenesulphonate; Methyl Orange solution; Acid Orange 52; 4-Dimethylaminoazobenzene-4-sulfonic acid, sodium salt |
| CAS: | 547-58-0 |
| EINECS: | 208-925-3 |
| Molecular Formula: | C14H14N3NaO3S |
| Molecular Weight: | 327.33403 |
| InChI: | InChI=1S/C14H15N3O3S.Na/c1-17(2)13-7-3-11(4-8-13)15-16-12-5-9-14(10-6-12)21(18,19)20;/h3-10H,1-2H3,(H,18,19,20);/q;+1/p-1 |
| Molecular Structure: | ![(C14H14N3NaO3S) 4-[4-(Dimethylamino)phenylazo]benzenesulfonic acid, sodium salt; Acid Orange 52 C.I. 13025; C.I. 130...](https://img.guidechem.com/casimg/547-58-0.gif) |
| Properties | |
| Transport: | UN 2811 |
| Flash Point: | °C |
| Density: | 1 |
| Stability: | Stable. Incompatible with strong oxidizing agents. |
| Water Solubility: | slight |
| Solubility: | slight |
| Appearance: | orange-yellow powder |
| Specification: | orange-yellow powder Safety Statements:45-24/25-16-36/37/39 45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) 24/25:Avoid contact with skin and eyes 16:Keep away from sources of ignition - No smoking 36/37/39:Wear suitable protective clothing, gloves and eye/face protection |
| Packinggroup: | III |
| Flash Point: | °C |
| Storage Temperature: | Store at RT. |
| Color: | ORANGE-YELLOW POWDER OR CRYSTALLINE SCALES |
| Safety Data | |
| Hazard Symbols |
T:Toxic
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