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Rhodamine B
Rhodamine B
Rhodamine B
Thermo Scientific Chemicals

Rhodamine B

CAS: 81-88-9 | C28H31ClN2O3 | 479.02 g/mol
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Catalog number A13572.18
also known as A13572-18
Price (EUR)
28,60
Each
Quantity:
50 g
Request bulk or custom format
Price (EUR)
28,60
Each
Chemical Identifiers
CAS81-88-9
IUPAC Name9-(2-carboxyphenyl)-3,6-bis(diethylamino)-10λ⁴-xanthen-10-ylium chloride
Molecular FormulaC28H31ClN2O3
InChI KeyPYWVYCXTNDRMGF-UHFFFAOYSA-N
SMILES[Cl-].CCN(CC)C1=CC2=[O+]C3=CC(=CC=C3C(C3=CC=CC=C3C(O)=O)=C2C=C1)N(CC)CC
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SpecificationsSpecification SheetSpecification Sheet
Loss on Drying≤10.0% (105?C)
lambda-max (UV-Vis)545-560 nm (50:50 IMS:water)
Specific Absorbance (E 1%/1cm)≥1700 (at lambda max, 50:50 IMS:water, UK-sourced material)
CommentMaterial sourced in UK and US
Appearance (Color)Purple or dark green
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Suitable for fluorescent labellingRhodamine B is used as a laser dye, metal chelating agent and an additive to drugs and cosmetics. It also serves as a staining fluorescent dye, which is used as a colorant in inks, paper and plastics. Further, it is used to make pink fluorescent pigments. It is also employed as a biomarker in oral rabies vaccines for wildlife such as raccoons. In addition to this, it is a useful fluorochrome for histology, fluorescence resonance energy transfer (FRET) and mitochondrial probe.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Suitable for fluorescent labellingRhodamine B is used as a laser dye, metal chelating agent and an additive to drugs and cosmetics. It also serves as a staining fluorescent dye, which is used as a colorant in inks, paper and plastics. Further, it is used to make pink fluorescent pigments. It is also employed as a biomarker in oral rabies vaccines for wildlife such as raccoons. In addition to this, it is a useful fluorochrome for histology, fluorescence resonance energy transfer (FRET) and mitochondrial probe.

Solubility
Soluble in water, benzene and ethanol. Slightly soluble in acetone, hydrochloric acid, sodium hydroxide, methyl cellosolve and alcohol.

Notes
Incompatible with strong oxidizing agents.
RUO – Research Use Only

General References:

  1. Biological stain.
  2. Reagent for determination of Cd and Zn: Anal. Chem., 176, 285 (1960); also for various other metals.
  3. Meng, Q.; Xin, X.; Zhang, L.; Dai, F.; Wang, R.; Sun, D. A multifunctional Eu MOF as a fluorescent pH sensor and exhibiting highly solvent-dependent adsorption and degradation of rhodamine B. J. Mater. Chem. A 2015, 3 (47), 24016-24021.
  4. Shen, S. L.; Chen, X. P.; Zhang, X. F.; Miao, J. Y.; Zhao, B. X. A rhodamine B-based lysosomal pH probe. J. Mater. Chem. B 2015, 3 (5), 919-925.