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| | Basic Red 2 Basic information |
| | Basic Red 2 Chemical Properties |
| Melting point | >240℃ (decompose) | | Boiling point | 507.14°C (rough estimate) | | 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 | | pka | 6.4(at 25℃) | | Colour Index | 50240 | | form | Solid | | color | S. No.: 967 | | PH | 10 (10g/l, H2O, 20℃) | | Water Solubility | soluble | | λmax | 530 nm | | BRN | 3924099 | | Stability: | Stable. | | Biological Applications | Hematotoxicity assays; measuring membrane potential; detecting microorganisms; treating diabetes-associated pain,mechanical allodynia,oncological diseases; food packaging materials | | EPA Substance Registry System | 3,7-Diamino-2,8-dimethyl-5-phenylphenazinium chloride (477-73-6) |
| | 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 of
cyanoacrylate-fumed friction ridges of human
digits.
| | Definition | A red dye that flu-
oresces when exposed to selected wavelengths of
light.
| | 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. | | 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.
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Standard( Cotton )
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Light Fastness
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Persperation Fastness
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Ironing Fastness
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Soaping
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Fading
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Stain
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Fading
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Stain
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Fading
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Stain
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C
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1-2
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2
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2-3
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2-3
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5
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| | 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 |
| | Basic Red 2 Preparation Products And Raw materials |
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