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Eosin Y

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Identification
Molecular formula
C20H8Br4O5
CAS number
17372-87-1
IUPAC name
2',4',5',7'-tetrabromo-3',6'-dihydroxy-spiro[isobenzofuran-3,9'-xanthene]-1-one
State
State

At room temperature, Eosin Y is in a solid state, usually in the form of a crystalline powder.

Melting point (Celsius)
301.00
Melting point (Kelvin)
574.15
Boiling point (Celsius)
0.00
Boiling point (Kelvin)
273.15
General information
Molecular weight
647.89g/mol
Molar mass
0.0000g/mol
Density
0.0185g/cm3
Appearence

Eosin Y is typically a red or pink crystalline powder. It can form yellowish to reddish solutions in water and other solvents.

Comment on solubility

Solubility of 2',4',5',7'-tetrabromo-3',6'-dihydroxy-spiro[isobenzofuran-3,9'-xanthene]-1-one

The solubility of 2',4',5',7'-tetrabromo-3',6'-dihydroxy-spiro[isobenzofuran-3,9'-xanthene]-1-one is a critical aspect to understand when considering its applications and behavior in various environments. This compound is characterized by its highly brominated structure, which can significantly influence its solubility profile.

Key factors affecting the solubility include:

  • Bromination: The presence of multiple bromine atoms generally enhances solubility in organic solvents, although it may decrease aqueous solubility.
  • Hydroxyl Groups: The dihydroxy functionality can contribute to hydrogen bonding, potentially increasing solubility in polar solvents.
  • Structure: The spiro configuration introduces unique spatial characteristics that can affect intermolecular interactions.

Overall, this compound is expected to exhibit:

  • Limited solubility in water due to its hydrophobic nature from the brominated hydrocarbons.
  • Better solubility in organic solvents such as acetone, ethanol, and DMSO, particularly those with polar characteristics which can interact with its hydroxyl groups.

In summary, while the solubility of 2',4',5',7'-tetrabromo-3',6'-dihydroxy-spiro[isobenzofuran-3,9'-xanthene]-1-one may appear complex due to its diverse functional groups and structural features, it is essential to tailor solubility expectations based on the medium and environmental conditions. As noted, “Solubility is not just about the compound itself, but also about its interaction with the solvent.

Interesting facts

Interesting Facts about 2',4',5',7'-tetrabromo-3',6'-dihydroxy-spiro[isobenzofuran-3,9'-xanthene]-1-one

This fascinating compound is a member of the xanthene family and showcases an intricate molecular structure. Its unique combination of bromine and hydroxyl groups gives it distinctive properties that have piqued the interest of researchers in various fields.

Key Features:

  • Halogenation: The presence of four bromine atoms significantly enhances the compound's reactivity and potential applications in trying to develop materials with specific electronic properties.
  • Hydroxyl Groups: The two hydroxyl groups contribute to hydrogen bonding capability, which can influence solubility and biological activity.
  • Spiro Structure: The spiro configuration, where two fused rings share a single atom, adds a level of complexity and uniqueness to its geometry. This structural arrangement can affect the compound's optical and electronic properties.

Moreover, compounds with similar structures have been noted for their potential use in fluorescent dyes, optical sensors, and antioxidants. The spiro xanthene framework is particularly appealing for developing materials that exhibit luminescent properties. As a result, there is considerable interest in using this compound in photonics and biomedical fields.

In addition to its practical applications, synthesizing and characterizing complex compounds like this one challenges chemists, pushing the boundaries of our knowledge and understanding of organic chemistry. The study of such compounds continues to inspire innovation and creativity in the pursuit of new scientific breakthroughs.

Synonyms
15086-94-9
Solvent Red 43
Bromoeosin
2',4',5',7'-Tetrabromofluorescein
Bromeosin
C.I. Solvent Red 43
Eosine acid
Japan Red 223
Eosin acid
Eosin Y free acid
D and C Red No. 21
D & C Red no. 21
Japan Red No. 223
D&C Red No. 21
Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one, 2',4',5',7'-tetrabromo-3',6'-dihydroxy-
C.I. 45380:2
NSC 244436
3,6-Dihydroxy-2,4,5,7-tetrabromospiro(xanthene-9,3'-phthalide)
2',4',5',7'-tetrabromo-3',6'-dihydroxyspiro[2-benzofuran-3,9'-xanthene]-1-one
Fluorescein, 2',4',5',7'-tetrabromo-
CI 45380:2
DTXSID3044590
CHEBI:39078
2730CL9N7C
2',4',5',7'-Tetrabromo-3',6'-dihydroxy-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one
NSC-244436
2',4',5',7'- tetrabromofluorescein
Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one, 2',4',5',7'-tetrabromo-3',6'-dihydroxy-
2',4',5',7'-tetrabromo-3',6'-dihydroxy-3H-spiro[2-benzofuran-1,9'-xanthen]-3-one
Acid eosin
CCRIS 4904
Spiro(isobenzofuran-1(3H), 2',4',5',7'-tetrabromo-3',6'-dihydroxy-
Spiro[isobenzofuran-1(3H), 2',4',5',7'-tetrabromo-3',6'-dihydroxy-
11,13,14,16-tetrabromo-12,15-dihydroxyspiro[3-hydroisobenzofuran-3,9'-xanthene ]-1-one
tetrabromfluorescein
2',4',5',7'-TETRABROMO-3',6'-DIHYDROXY-3H-SPIRO(2-BENZOFURAN-1,9'-XANTHEN)-3-ONE
Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one,2',4',5',7'-tetrabromo-3',6'-dihydroxy-
Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one,2',4',5',7'-tetrabromo-3',6'-dihydroxy-
EINECS 239-138-3
Eosine (Salt/Mix)
Eosin Y, free acid
BRN 0063410
Eosine A (Salt/Mix)
Eosin Y alcohol solution
EOSINE [WHO-DD]
Eosine 3G (Salt/Mix)
Eosine 3Y (Salt/Mix)
Eosin yellowish (Salt/Mix)
Acid red 87 (Salt/Mix)
Fluorescein, 2',4',5',7'-tetrabromo- (VAN)
SCHEMBL113395
UNII-08744Z6JNY
UNII-2730CL9N7C
CHEMBL408917
DTXCID1024590
EOSIN Y FREE ACID [MI]
Eosin Y, Dye content ~99 %
SCHEMBL29350830
SCHEMBL29381252
Bromofluoresceic acid (Salt/Mix)
2',5',7'-Tetrabromofluorescein
08744Z6JNY
HY-D0505
Tox21_301553
BDBM50376168
D & C Red no. 22 (Salt/Mix)
Fluorescein,4',5',7'-tetrabromo-
NSC244436
SBB058151
AKOS024374936
2',4',5',7'-tetrabromo fluorescein
2',4',5',7'-Tetrabromo-3',6'-dihydroxyspiro(isobenzofuran-1(3H),9- '-(9H)xanthen)-3-one
NCGC00255782-01
DA-63219
Spiro(isobenzofuran-1(3H),9'-(9H)-xanthen)-3-one, 2',4',5',7'-tetrabromo-3',6'-dihydroxy-
SY055963
CAS-15086-94-9
CS-0010597
NS00007125
ST51014998
C19416
EC 239-138-3
H11259
4-19-00-02917 (Beilstein Handbook Reference)
EN300-19631807
Eosin Acid C.I. No. 45380 (Technical Grade)
Q27118125
WLN: T C666 BO EVJ DE FE IR BVQ& LE MQ NE
2-(2,4,5,7-Tetrabromo-6-hydroxy-3-oxo-3H-xanthen-9-yl)benzoic acid #