| Customization: | Available |
|---|---|
| CAS No.: | 74-39-5 |
| Formula: | C12h9n3o4 |
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| Product Name: | 4-(4-Nitrophenyl)azoreso-rcinol |
| Synonyms: | 3-Benzenediol,4-[(4-nitrophenyl)azo]-1;Magneson I;1,3-Ben zenediol,4-[(4-nitrophenyl)azo]-;2,4-Dihydroxy-4-nitroazobenzene;MAGNESON;MAGNESON I;LABOTEST-BB LT00455004;AZO VIOLET |
| CAS: | 74-39-5 |
| MF: | C12H9N3O4 |
| MW: | 259.22 |
| EINECS: | 200-808-5 |
| Product Categories: | Analytical Chemistry;Azo Compounds;Azobennzenes, etc. (Chelating Reagents);Chelating Reagents |
| Mol File: | 74-39-5.mol |
| 4-(4-Nitrophenyl)azoreso-rcinol Chemical Properties |
| Melting point | 195-200 °C (dec.)(lit.) |
| Boiling point | 402.47°C (rough estimate) |
| density | 1.3450 (rough estimate) |
| refractive index | 1.5700 (estimate) |
| storage temp. | Store below +30°C. |
| form | Powder |
| pka | 8.05±0.35(Predicted) |
| color | Orange-red to red |
| Odor | Odorless |
| Water Solubility | Soluble in dilute sodi-um hydr-oxide. Insoluble in water. |
| Merck | 14,5695 |
| BRN | 674709 |
| Stability: | Stable. Incompatible with strong oxidizing agents, strong bases. |
| CAS DataBase Reference | 74-39-5(CAS DataBase Reference) |
| EPA Substance Registry System | 1,3-Benz enediol, 4-[(4-nitrophenyl)azo]- (74-39-5) |
| Safety Information |
| Hazard Codes | Xi |
| Risk Statements | 36/38 |
| Safety Statements | 26-36 |
| WGK Germany | 3 |
| RTECS | VH2810000 |
| TSCA | Yes |
| HS Code | 29270000 |
| 4-(4-Nitrophenyl)azoreso-rcinol Usage And Synthesis |
| Description | Oxygen violet can be prepared by one-step reaction of p-nitroa niline and 1,3-benz enediol. Azo violet can be used to prepare an azobenzene photochromic liquid crystal compound. Photochromic liquid crystal compounds have both photochromic properties and liquid crystallinity, which has become a research hotspot in the field of information storage. Azobenzene-based liquid crystals are the most interesting photochromic liquid crystal materials in recent years due to their unique photoinduced cis-trans isomerism. Azobenzene compounds undergo reversible cis-trans isomerization under the action of light, which makes them have great potential applications in many aspects such as optical storage, photo-holography and optical information processing. |
| Chemical Properties | dark red to brown crystalline powder |
| Uses | 4-(4-Nitrophenyl)azoreso-rcinol is used for the detection of magnesium with which it yields a bright blue color in alkaline solution and it also used to determine molybdenum with which it forms a red-violet complex: Nikitina, Andrianova, C.A. 75, 136789v (1971). |
| Uses | It is a derivitized resorc-nol dye compound with an absorption maximum of 432 nm. Used as a pH indicator. |
| Definition | ChEBI: An azobenzene in which the phenyl rings are 4-nitro- and 2,4-dihydroxy-substituted respectively. |
| Biochem/physiol Actions | 4-(4-Nitrophenylazo)res-orcinol is a pH indicator. |
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