| Identification | More | [Name]
Solvent Red 49 | [CAS]
509-34-2 | [Synonyms]
CI 45170
CI 45170.1
CI 45170:1
D AND C RED NO 19
D AND C RED NO 37
RHODAMINE B BASE
RHODAMINE B BASE, ALCOHOL SOLUBLE
RHODAMINE B STEARATE
SOLVENT RED 49
9’-(9H)xanthen]-3-one,3’,6’-bis(diethylamino)-Spiro[isobenzofuran-1(3H)
9’-[9h]xanthen]-3-one,3’,6’-bis(diethylamino)-spiro[isobenzofuran-1(3h
abcolrhodaminebbase
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
3',6'-bis(diethylamino)-Spiro[isobenzofuran-1(3H),9'-(9H)xanthen]-3-one
Solvent red 49 (C.I. 45170:1) | [EINECS(EC#)]
208-096-8 | [Molecular Formula]
C28H30N2O3 | [MDL Number]
MFCD00066967 | [Molecular Weight]
442.55 | [MOL File]
509-34-2.mol |
| Chemical Properties | Back Directory | [Appearance]
LILAC FINE CRYSTALLINE POWDER | [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 | [Colour Index ]
45170:1 | [form ]
Fine Crystalline Powder | [pka]
5.80±0.20(Predicted) | [color ]
Lilac | [Water Solubility ]
4.83g/L at 30℃ | [ε(extinction coefficient)]
≥103000 at 542-546nm in methanol at 0.0025g/L | [λmax]
544 nm | [LogP]
3.649 at 25℃ | [CAS DataBase Reference]
509-34-2(CAS DataBase Reference) | [EPA Substance Registry System]
509-34-2(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
Xn | [Risk Statements ]
R22:Harmful if swallowed.
R37/38:Irritating to respiratory system and skin .
R41:Risk of serious damage to eyes. | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37:Wear suitable protective clothing and gloves . | [WGK Germany ]
3
| [HS Code ]
32041300 |
| Hazard Information | Back Directory | [Chemical Properties]
LILAC FINE CRYSTALLINE POWDER | [Uses]
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. | [Properties and Applications]
|
TEST ITEMS
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SPECIFICATION
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APPEARANCE
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PINK POWDER
|
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SHADE
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BLUISH
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HEAT RESISTANCE
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180 °C min
|
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LIGHT FASTNESS
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4-5
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ACID RESISTANCE
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4
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ALKALI RESISTANCE
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5
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WATER RESISTANCE
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5
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DENSITY
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1.30 g/cm
3
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RESIDUE ON 80 MESH
|
5.0% max
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WATER SOLUBLE
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1.0% max
|
|
VOLATITE 105 °C
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1.0% max
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TINTING STRENGTH
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100-105 %
|
| [Purification Methods]
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.] |
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