Eosin b(2-)

Base Information

Chemical Name:Eosin b(2-)
CAS No.:56360-46-4
Molecular Formula:C20H8 Br2 N2 O9
Molecular Weight:578.0787
Hs Code.:32041200
Wikidata:Q27137049
Mol file:56360-46-4.mol

Synonyms:eosin b(2-);56360-46-4;4',5'-dibromo-2',7'-dinitro-3-oxospiro[2-benzofuran-1,9'-xanthene]-3',6'-diolate;CHEBI:68617;Q27137049;4',5'-dibromo-2',7'-dinitro-3-oxo-3H-spiro[2-benzofuran-1,9'-xanthene]-3',6'-diolate

Suppliers and Price of Eosin b(2-)

Supply Marketing:

Business phase:: The product has achieved commercial mass production^*data from LookChem market partment

Manufacturers and distributors:

Manufacture/Brand
Chemicals and raw materials
Packaging
price

TRC
EosinBSpiritSoluble
2.5g
$ 75.00

Sigma-Aldrich
Eosin B certified by the Biological Stain Commission, Dye content 90?%
100 g
$ 490.00

Sigma-Aldrich
Eosin B for microscopy (Fl., Hist.), adsorption and fluorescent indicator
100 g
$ 347.00

Sigma-Aldrich
Eosin B for microscopy (Fl., Hist.), adsorption and fluorescent indicator
25 g
$ 130.00

Sigma-Aldrich
Eosin B certified by the Biological Stain Commission, Dye content 90?%
25 g
$ 130.00

Sigma-Aldrich
Eosin B Dye content 95%
25g
$ 120.00

Sigma-Aldrich
Eosin B certified by the Biological Stain Commission, Dye content 90?%
10 g
$ 50.00

Chem-Impex
EosinBSpiritSoluble?,Dyecontent:95% Dyecontent:95%
25G
$ 33.60

Chem-Impex
EosinBSpiritSoluble?,Dyecontent:≥95% Dyecontent:≥95%
1KG
$ 757.12

Chem-Impex
EosinBSpiritSoluble?,Dyecontent:≥95% Dyecontent:≥95%
100G
$ 104.83

Total 16 raw suppliers

Chemical Property of Eosin b(2-)

Chemical Property:

Melting Point:275 °C (dec.)(lit.)
Boiling Point:663.6 °C at 760 mmHg
PKA:5.98±0.20(Predicted)
Flash Point:355.1 °C
PSA：179.38000
Density:g/cm³
LogP:6.35640
Solubility.:spirit: soluble
XLogP3:5.8
Hydrogen Bond Donor Count:0
Hydrogen Bond Acceptor Count:9
Rotatable Bond Count:0
Exact Mass:577.84196
Heavy Atom Count:33
Complexity:804

Purity/Quality:

99.0% ^*data from raw suppliers

EosinBSpiritSoluble ^*data from reagent suppliers

Safty Information:

Pictogram(s): Xn
Hazard Codes:Xn
Statements: 22-21/22
Safety Statements: 22-24/25-36/37

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

Canonical SMILES:C1=CC=C2C(=C1)C(=O)OC23C4=CC(=C(C(=C4OC5=C(C(=C(C=C35)[N+](=O)[O-])[O-])Br)Br)[O-])[N+](=O)[O-]

Technology Process of Eosin b(2-)

There total 8 articles about Eosin b(2-) which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 90.0%