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Rhodamine B

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Identification
Molecular formula
C28H31N2O3Cl
CAS number
81-88-9
IUPAC name
[9-(2-carboxyphenyl)-6-(diethylamino)xanthen-3-ylidene]-diethyl-ammonium
State
State

At room temperature, Rhodamine B is typically in a solid state and is known for its bright, vivid coloration. It is often provided in powdered form for use as a dye or laboratory reagent, showcasing high solubility in water and alcohols.

Melting point (Celsius)
210.00
Melting point (Kelvin)
483.15
Boiling point (Celsius)
433.90
Boiling point (Kelvin)
707.05
General information
Molecular weight
479.02g/mol
Molar mass
479.0190g/mol
Density
1.1500g/cm3
Appearence

Rhodamine B appears as a deep pink to red crystalline powder. It is often used as a dye and appears vividly fluorescent under ultraviolet light. When dissolved, it provides a bright pink solution. The intensity of its color and fluorescence makes it useful in a variety of scientific and industrial applications.

Comment on solubility

Solubility of [9-(2-carboxyphenyl)-6-(diethylamino)xanthen-3-ylidene]-diethyl-ammonium

The compound [9-(2-carboxyphenyl)-6-(diethylamino)xanthen-3-ylidene]-diethyl-ammonium demonstrates intriguing solubility characteristics, largely influenced by its chemical structure. Here are some key points to consider:

  • Polar Groups: The presence of the carboxyphenyl moiety introduces polar characteristics, enhancing its solubility in polar solvents, particularly water.
  • Ammonium Ion: The diethyl-ammonium functional group contributes to solubility in polar solvents due to ionic interactions.
  • Diethylamino Group: This group can further enhance solubility in organic solvents, making the compound more versatile.
  • Hydrogen Bonding: Potential hydrogen bonding between the carboxylic acid groups and surrounding solvent molecules increases solubility in water.

However, it's important to note that the overall solubility can vary significantly based on various factors, including:

  • Temperature
  • pH of the solution
  • Presence of other ionic or non-ionic species in the solvent

In practical applications, understanding the solubility of this compound is essential for determining its behavior in biological systems and its use in various chemical reactions or formulations.

Interesting facts

Interesting Facts about [9-(2-carboxyphenyl)-6-(diethylamino)xanthen-3-ylidene]-diethyl-ammonium

This fascinating compound is a derivative of xanthenes, which are well-known for their intriguing properties and applications in various fields of science. Here are some captivating aspects to consider:

  • Versatile Applications: The compound has garnered attention in the field of fluorescent dyes and biological imaging, making it a valuable tool in research and diagnostics.
  • Color Change: It is known for its striking colorimetric properties, which can change based on variations in pH. This makes it an excellent choice for indicators in various chemical environments.
  • Interaction with Biological Systems: Researchers have pointed out its potential interaction with biological systems, enabling the exploration of cellular processes and even the development of drug delivery systems.
  • Synthetic Pathways: The synthesis of this compound allows chemists to explore complex reactions and the formation of advanced organic structures, serving as a playground for synthetic organic chemistry.
  • Research Gateway: It acts as a gateway compound for the design of various derivatives, which can be tailored for specific applications in fields ranging from optoelectronics to photovoltaics.

Notably, the incorporation of the diethylamino group enhances its *electron-donating capacity*, thereby increasing its photostability and fluorescence quantum yield. As noted in studies, such compounds are often hailed for their **enhanced sensitivity** in analytical applications, making them indispensable in modern chemistry.

In conclusion, [9-(2-carboxyphenyl)-6-(diethylamino)xanthen-3-ylidene]-diethyl-ammonium is more than just a chemical compound; it represents the intersection of innovation in organic synthesis and practical applications in various scientific disciplines.

Synonyms
Rhodamine B cation
Rhodamine
Rhodamine 610
Rhodamine B(1+)
Rhodamine B monocation
Rhodamine B ion(1+)
Rhodamine B ion
64381-98-2
D and C Red 19
Basazol Red 71P
[9-(2-carboxyphenyl)-6-(diethylamino)xanthen-3-ylidene]-diethylazanium
Xanthylium, 9-(2-carboxyphenyl)-3,6-bis(diethylamino)-
14899-08-2
Cerise Toner X 1127
CHEBI:52896
9-(2-Carboxyphenyl)-3,6-bis(diethylamino)xanthylium
N-[9-(2-carboxyphenyl)-6-(diethylamino)-3H-xanthen-3-ylidene]-N-ethylethanaminium
1326-03-0
NSC41837
Pilot 578
Ethanaminium, N-(9-(2-carboxyphenyl)-6-(diethylamino)-3H-xanthen-3-ylidene)-N-ethyl-
SCHEMBL3903552
CHEMBL1185708
DTXSID2047981
SCHEMBL12960386
CVAVMIODJQHEEH-UHFFFAOYSA-
CVAVMIODJQHEEH-UHFFFAOYSA-O
81-88-9 (CHLORIDE)
STK870179
AKOS001703914
9-(2-Carboxyphenyl)-3,6-bis(diethylamino)-Xanthylium
Q27123676
9-(2-Carboxyphenyl)-3,6-bis(diethylamino)xanthylium(1+), 9CI
[9-(2-carboxyphenyl)-6-(diethylamino)xanthen-3-ylidene]-diethyl-ammonium
9-(2-carboxyphenyl)-6-(diethylamino)-N,N-diethyl-3H-xanthen-3-iminium
[9-(2-carboxyphenyl)-6-diethylaminoxanthen-3-ylidene]-diethylazanium chloride
InChI=1/C28H30N2O3/c1-5-29(6-2)19-13-15-23-25(17-19)33-26-18-20(30(7-3)8-4)14-16-24(26)27(23)21-11-9-10-12-22(21)28(31)32/h9-18H,5-8H2,1-4H3/p+1
N-[9-(2-Carboxyphenyl)-6-(diethylamino)-3H-xanthen-3-ylidene]-N-ethylethanaminium(1+), 9CI