Introduction：Basic information about Basic Red 2 CAS 477-73-6, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
Basic Red 2 Basic information
| Product Name: | Basic Red 2 |
| Synonyms: | S NO 967;SAFRANIN A;SAFRANIN;SAFRANINE;SAFRANINE A,O,T,Y;SAFRANINE B;SAFRANINE O;SAFRANINE ''O'' |
| CAS: | 477-73-6 |
| MF: | C20H19ClN4 |
| MW: | 350.85 |
| EINECS: | 207-518-8 |
| Product Categories: | Phenazine;S;Stains and Dyes;Stains&Dyes, A to |
| Mol File: | 477-73-6.mol |
|
Basic Red 2 Chemical Properties
| Melting point | >240℃ (decompose) |
| Boiling point | 507.14°C (rough estimate) |
| bulk density | 400kg/m3 |
| density | 1.00 g/mL at 20 °C |
| refractive index | n20/D 1.339 |
| Fp | 46 °C |
| storage temp. | Keep in dark place,Inert atmosphere,Room temperature |
| solubility | H2O: soluble1mg/mL |
| form | Solid |
| pka | 6.4(at 25℃) |
| Colour Index | 50240 |
| color | S. No.: 967 |
| PH | 10 (10g/l, H2O, 20℃) |
| Water Solubility | soluble |
| λmax | 530 nm |
| BRN | 3924099 |
| Stability: | Stable. |
| Major Application | diagnostic assay manufacturing
hematology
histology |
| Biological Applications | Hematotoxicity assays; measuring membrane potential; detecting microorganisms; treating diabetes-associated pain,mechanical allodynia,oncological diseases; food packaging materials |
| Cosmetics Ingredients Functions | HAIR DYEING |
| InChI | 1S/C20H18N4.ClH/c1-12-8-17-19(10-15(12)21)24(14-6-4-3-5-7-14)20-11-16(22)13(2)9-18(20)23-17;/h3-11H,1-2H3,(H3,21,22);1H |
| InChIKey | OARRHUQTFTUEOS-UHFFFAOYSA-N |
| SMILES | [Cl-].Cc1cc2nc3cc(C)c(N)cc3[n+](-c4ccccc4)c2cc1N |
| EPA Substance Registry System | 3,7-Diamino-2,8-dimethyl-5-phenylphenazinium chloride (477-73-6) |
Safety Information
| Hazard Codes | Xi |
| Risk Statements | 41-36/38-37/38-10-36/37/38 |
| Safety Statements | 26-39-24/25-36-16 |
| RIDADR | UN 1170 3/PG 3 |
| WGK Germany | 3 |
| RTECS | SG1623000 |
| TSCA | TSCA listed |
| HS Code | 32041300 |
| Storage Class | 3 - Flammable liquids |
| Hazard Classifications | Flam. Liq. 3 |
| Hazardous Substances Data | 477-73-6(Hazardous Substances Data) |
Basic Red 2 Usage And Synthesis
| Chemical Properties | Dark red to violet powder |
| Uses | A biological stain used to stain Gram negative bacteria, chromosomes, mucin, cartilage and mast cells. Dyes and metabolites, Environmental Testing |
| Uses | In forensics to visualize details ofcyanoacrylate-fumed friction ridges of humandigits. |
| Definition | A red dye that flu-oresces when exposed to selected wavelengths oflight. |
| Preparation | commonly known as Safranine T. Such molecular ratio of 2-Methylbenzene-1 ,4-diamine, and O-Methylaniline oxidation, the resulting condensation product of aniline and purified by precipitation segmented dye, and then converted to the chloride. |
| Application | Basic Red 2 is disclosed as colored charge-controlling agent in toners for electrophotography and as photosensitizer in solar cells. Safranine dyes are also suitable for use in photoelectric processes. Further more,they can be used as desensitizers indirect positive printing-out emulsions, for photopolymerization using visible light,a slight filters with variable optical density, and as dye components in soluble complex-forming molecules used in affinity-specific separation of nucleic acids. |
| Purification Methods | Crystallise it from *benzene/MeOH (1:1) or water. Dry it in vacuo over H2SO4. It has UV: at 520nm (H2O) and 530nm (EtOH). [Beilstein 25 H 403, 25 I 657, 25 III/IV |
| Properties and Applications | bright blue light pink. Soluble in water for red, soluble in ethanol with yellow red fluorescent red. The strong sulfuric acid for green, diluted by blue to become red. The dye solution to join sodium hydroxide produce light brown red precipitate; Join the hydrochloric acid into blue purple. Used for paper making industry and color up manufacturing. Also used in acrylic, linen, silk products dyeing.
| Standard( Cotton ) | Light Fastness | Persperation Fastness | Ironing Fastness | Soaping | | Fading | Stain | Fading | Stain | Fading | Stain | | C | 1-2 | 2 | | 2-3 | | 2-3 | 5 | |
Basic Red 2 Preparation Products And Raw materials
| Raw materials | o-Toluidine-->2,5-Diaminotoluene-->2,5-Diaminotoluene-->o-Toluidine |
| Preparation Products | INDOINE BLUE |
