Solvent Red 49
Synonym(s):Solvent Red 49
- CAS NO.:509-34-2
- Empirical Formula: C28H30N2O3
- Molecular Weight: 442.55
- MDL number: MFCD00066967
- EINECS: 208-096-8
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-11-13 19:05:53
What is Solvent Red 49?
Chemical properties
LILAC FINE CRYSTALLINE POWDER
The Uses of Solvent Red 49
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
What are the applications of Application
Rhodamine B base is a fluorescent biological staining dye
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.]
Properties and Applications
TEST ITEMS |
SPECIFICATION |
APPEARANCE |
PINK POWDER |
SHADE |
BLUISH |
HEAT RESISTANCE |
180 °C min |
LIGHT FASTNESS |
4-5 |
ACID RESISTANCE |
4 |
ALKALI RESISTANCE |
5 |
WATER RESISTANCE |
5 |
DENSITY |
1.30 g/cm 3 |
RESIDUE ON 80 MESH |
5.0% max |
WATER SOLUBLE |
1.0% max |
VOLATITE 105 °C |
1.0% max |
TINTING STRENGTH |
100-105 % |
Properties of Solvent Red 49
Boiling point: | 553.14°C (rough estimate) |
Density | 1.1536 (rough estimate) |
vapor pressure | 0Pa at 25℃ |
refractive index | 1.5800 (estimate) |
Colour Index | 45170:1 |
pka | 5.80±0.20(Predicted) |
form | Fine Crystalline Powder |
color | Lilac |
Water Solubility | 4.83g/L at 30℃ |
CAS DataBase Reference | 509-34-2(CAS DataBase Reference) |
EPA Substance Registry System | C.I. Solvent Red 49 (509-34-2) |
Safety information for Solvent Red 49
Signal word | Danger |
Pictogram(s) |
Corrosion Corrosives GHS05 Exclamation Mark Irritant GHS07 |
GHS Hazard Statements |
H302:Acute toxicity,oral H315:Skin corrosion/irritation H318:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for Solvent Red 49
Abamectin manufacturer
Mehul Dye Chem Industries
Unilex Colours and Chemicals Ltd
Colorants Chem Pvt Ltd
Jagson Colorchem Limited
Hariram Industries
Tapi Pigment
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