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Eosin B

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Name

Eosin B

EINECS 208-943-1
CAS No. 548-24-3 Density N/A
PSA 185.04000 LogP 5.45990
Solubility Soluble in water (390 g/L at 20°C), and ethanol. Melting Point 275 °C (dec.)(lit.)
Formula C20H6Br2N2Na2O9 Boiling Point 694.1 °C at 760 mmHg
Molecular Weight 624.06 Flash Point 373.6 °C
Transport Information N/A Appearance odourless green to reddish-brown solid
Safety 22-24/25 Risk Codes 22
Molecular Structure Molecular Structure of 548-24-3 (EOSIN B) Hazard Symbols HarmfulXn
Synonyms

4',5'-Dibromo-2',7'-dinitrofluorescein Disodium Salt;4',5'-Dibromo-3',6'-dihydroxy-2',7'-dinitrospiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one Disodium Salt;benzoic acid, 2-(4,5-dibromo-6-hydroxy-2,7-dinitro-3-oxo-3H-xanthen-9-yl)-, sodium salt (1:2);C.I. Acid Red 91;Disodium 2-(4,5-dibromo-2,7-dinitro-6-oxido-3-oxo-3H-xanthen-9-yl)benzoate;Eosine I Bluish;Hydroxydibromodinitro-o-carboxyphenylfluorone Sodium;

 

Eosin B Specification

The Eosin B, with the CAS registry number 548-24-3, is also known as Dibromodinitrofluorescein sodium. It belongs to the product category of Organics. Its EINECS registry number is 208-943-1. This chemical's molecular formula is C20H6Br2N2Na2O9 and molecular weight is 624.06. Its systematic name is called disodium 2-(4,5-dibromo-2,7-dinitro-6-oxido-3-oxo-3H-xanthen-9-yl)benzoate. Eosin B is a form of eosin which is odourless green to reddish-brown solid. This chemical's classification codes are Coloring Agents; Fluorescent Dyes; Indicators and Reagents; Luminescent Agents.

Physical properties of Eosin B: (1)ACD/LogP: 5.38; (2)# of Rule of 5 Violations: 3; (3)ACD/LogD (pH 5.5): 1.72; (4)ACD/LogD (pH 7.4): 1.23; (5)ACD/BCF (pH 5.5): 1.58; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 4.41; (8)ACD/KOC (pH 7.4): 1.43; (9)#H bond acceptors: 11; (10)#H bond donors: 2; (11)#Freely Rotating Bonds: 5; (12)Flash Point: 373.6 °C; (13)Enthalpy of Vaporization: 106.79 kJ/mol; (14)Boiling Point: 694.1 °C at 760 mmHg; (15)Vapour Pressure: 3.15E-20 mmHg at 25°C.

When you are using this chemical, please be cautious about it as the following:
This chemical may cause damage to health. It is harmful if swallowed. You should not breathe its dust. Besides, you must avoid contact with skin and eyes.

You can still convert the following datas into molecular structure:
(1)SMILES: [Na+].[Na+].[O-]C(=O)c4ccccc4C=1c3cc([N+]([O-])=O)c([O-])c(Br)c3OC=2C=1\C=C(/C(=O)C=2Br)[N+]([O-])=O
(2)InChI: InChI=1/C20H8Br2N2O9.2Na/c21-14-16(25)11(23(29)30)5-9-13(7-3-1-2-4-8(7)20(27)28)10-6-12(24(31)32)17(26)15(22)19(10)33-18(9)14;;/h1-6,25H,(H,27,28);;/q;2*+1/p-2
(3)InChIKey: GYYTYUGGVBYJHE-NUQVWONBAQ

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