Methyl Red CAS#: 493-52-7; ChemWhat Code: 96497
Names & Identifiers |
| Product Name | Methyl Red |
| Synonyms | CI NO 13020;BROMOCRESOL GREEN-METHYL RED;BROMOCRESOL GREEN-METHYL RED ETHANOL;BROMOCRESOL GREEN/METHYL RED, MIXED INDICATOR;BROMOCRESOL GREEN/METHYL RED, MIX INDICATOR FOR ALKALINITY;METHYL RED;METHYL RED INDICATOR;METHYL RED MIXED SOLUTION |
| CAS Registry Number | 493-52-7 |
| Molecular Formula | C15H15N3O2 |
| Molecular Weight | 269.3 |
| EINECS | 207-776-1 |
| Other Registry Numbers | ; |
| More Identifiers on PubChem | IUPA Names, InChI, InChI Key, Canonical SMILES, etc. |
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Chemical & Physical Properties |
| Melting point | 178-182°C |
| Density | 0.839 g/mL at 25 °C |
| Flash Point | 11 °C |
| Storage | −20°C |
| Solubulity | ethanol: soluble1mg/mL |
| form | Solid |
| pka | 4.95(at 25℃) |
| Colour Index | 13020 |
| Color | Reddish-violet |
| PH Range | 4.4(red)-6.3(yellow) |
| Water Solubility | Practically insoluble in water. Soluble in alcohol, acetic acidSoluble in ethanol. Insoluble in water. |
| λmax | 410nm, 530nm, 427nm, 519nm |
| Merck | 14,6119 |
| BRN | 750102 |
| Stability: | Stable. Incompatible with strong oxidizing agents. |
| Major Application | Waveguides, LED sensors, photoresists, liquid crystals, sol-gel matrix, optical sensors, paints, toys, detection of thiols, food freshness sensors, dental product, saliva sampling method, detecting lactic acid, carbohydrates |
| NIST Chemistry Reference | Benzoic acid, 2-[[4-(dimethylamino)phenyl]azo]-(493-52-7) |
| EPA Substance Registry System | Benzoic acid, 2-[[4-(dimethylamino)phenyl] azo]-(493-52-7) |
Safety & Hazards(Codes & Phrases) |
| Hazard Codes | Xn,T,F,Xi,C,N |
| R Phrase | 10-20/21/22-68/20/21/22-68-36/38-23/25-11-36/37/38-34-51/53-39/23/24/25-23/24/25 |
| S Phrase | 36/37-24/25-22-45-33-24-16-7-36-26-36/37/39-61 |
| RIDADR | UN 1170 3/PG 2 |
| WGK Germany | 1 |
| RTECS | DG8960000 |
| TSCA | Yes |
| Storage Class | 3 |
| Packing Group | II |
| HS Code | 29270000 |
| Hazardous Substances Data | 493-52-7(Hazardous Substances Data) |
| More Safety & Hazards From PubChem | Signal, GHS Hazard Statements, Precautionary Statement Codes, etc. |
Literature |
| Literature on PubChem | Synthesis References, Metabolite References, etc. |
Patents |
| Patents on PubChem | Related Patents Of This Product |
Transportation, Storage & Usage |
| Transportation | No Information |
| Storage | No Information |
| Usage | No Information |
Spectral Properties |
| No Information |
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