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| OEM | OEM Services Provided |
| Feature | Good stability,Easy to Use |
| Classification | Dyes and Pigments |
| Advantage | Professional, Fast Delivery, Customizable | Samples | Apply for free，Contact us now. |
| Product Name: | Solvent Red 49 |
| Synonyms: | D AND C RED NO 19;D AND C RED NO 37;3',6'-bis(diethylamino)spiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one;RHODAMINE B BASE 99%;Oil Pink B;Spiroisobenzofuran-1(3H),9-9Hxanthen-3-one, 3,6-bis(diethylamino)-;SOLVENT RED BN;3',6'-bis(diethylamino)- Spiro[isobenzofuran-1(3H),9'-(9H)xanthen]-3-one |
| CAS: | 509-34-2 |
| MF: | C28H30N2O3 |
| MW: | 442.55 |
| EINECS: | 208-096-8 |
| Product Categories: | Solvent Dyestuff;Organics |
| Mol File: | 509-34-2.mol |
| Boiling point | 553.14°C (rough estimate) |
| density | 1.1536 (rough estimate) |
| vapor pressure | 0Pa at 25℃ |
| refractive index | 1.5800 (estimate) |
| storage temp. | room temp |
| solubility | ethanol: 1mg/mL |
| form | Fine Crystalline Powder |
| Colour Index | 45170:1 |
| pKa | 5.80±0.20(Predicted) |
| color | Lilac |
| Water Solubility | 4.83g/L at 30℃ |
| λmax | 544 nm |
| ε(extinction coefficient) | ≥103000 at 542-546nm in methanol at 0.0025g/L |
| LogP | 3.649 at 25℃ |
| CAS DataBase Reference | 509-34-2(CAS DataBase Reference) |
| EPA Substance Registry System | C.I. Solvent Red 49 (509-34-2) |
| Hazard Codes | Xn |
| Risk Statements | 22-37/38-41 |
| Safety Statements | 26-36/37 |
| WGK Germany | 3 |
| HS Code | 32041300 |
| Provider | Language |
|---|---|
| 3',6'-Bis(diethylamino)spiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one | English |
| ACROS | English |
| SigmaAldrich | English |
| Chemical Properties | LILAC FINE CRYSTALLINE POWDER | ||||||||||||||||||||||||||
| Rhodamine B base is a fluorescent biological staining dye. Rhodamine B base is also used as a laser dye, tunable around 610 nm with the fluorescence yield being temperature dependent. Dyes and metabolites, Environmental Testing | |||||||||||||||||||||||||||
| Biological Activity | Rhodamine B base has been used as a marker in the experiment to determine the mating of B. thuringiensis-resistant females with B. thuringiensis-resistant and B. thuringiensis-susceptible males in reciprocal orders. | ||||||||||||||||||||||||||
| Major impurities are partially dealkylated compounds not removed by recrystallisation. Purify the dye by chromatography, using ethyl acetate/isopropanol/ammonia (conc)(9:7:4, RF 0.75 on Kieselgel G). It has also been crystallised from a concentrated solution in MeOH by slow addition of dry diethyl ether; or from EtOH containing a drop of conc HCl by slow addition of ten volumes of dry diethyl ether. The solid is washed with ether and air dried. The dried material has also been extracted with *benzene to remove oil-soluble material prior to recrystallisation. Store it in the dark. [Beilstein 18 II 486, 18 III/IV 8246, 19/8 V 669.] | |||||||||||||||||||||||||||
| Properties and Applications |
|
| Raw materials | Phthalic anhydride-->2-Cyclohexyl-2-geranylmalonic acid-->FLUORESCEIN CHLORIDE-->3-Diethylaminophenol-->Diethylamine-->Phthalic anhydride |
| Preparation Products | 2-(4-Diethylamino-2-hydroxybenzoyl)benzoic acid |
Declaration: The products displayed on this website are intended exclusively for industrial applications or scientific research. They are not intended for medical, pharmaceutical, or food use. In accordance with applicable laws and regulations, purchasing organizations must hold valid qualifications and approvals.
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