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Name |
4',5'-Dibromofluorescein |
EINECS | 209-876-0 |
CAS No. | 596-03-2 | Density | 2.1 g/cm3 |
PSA | 75.99000 | LogP | 5.19080 |
Solubility | slightly soluble in Water | Melting Point |
270-273 °C(lit.) |
Formula | C20H10 Br2 O5 | Boiling Point | 633.7 °C at 760 mmHg |
Molecular Weight | 490.104 | Flash Point | 337 °C |
Transport Information | UN 2811 6 | Appearance | Orange Powder. |
Safety | 22-24/25-45 | Risk Codes | 36-25 |
Molecular Structure | Hazard Symbols | Xi | |
Synonyms |
Fluorescein,4',5'-dibromo- (6CI,8CI); 4',5'-Dibromofluorescein; C.I. 45370:1; C.I. SolventRed 72; D & C Orange 5; D and C Orange No. 5; D&C Orange No. 5; Eosinicacid; Japan Orange 201; Japan Orange No. 201; Orange No. 201; Solvent Red 72 |
Article Data | 7 |
IUPAC Name: 4',5'-Dibromo-3',6'-dihydroxyspiro[2-benzofuran-3,9'-xanthene]-1-one
Molecular Formula: C20H10Br2O5
Molecular Weight: 490.1g/mol
EINECS: 209-876-0
Density: 2.1 g/cm3
Melting Point: 270-273 °C(lit.)
Boiling Point: 633.7 °C at 760 mmHg
Flash Point: 337 °C
Solubility: slightly soluble in water
Appearance: orange powder
Liansport Information: UN 2811 6
Freely Rotating Bonds: 2
Polar Surface Area: 53.99 Å2
Index of Refraction: 1.842
Molar Refractivity: 103.43 cm3
Molar Volume: 232.9 cm3
Polarizability: 41 ×10-24 cm3
Surface Tension: 102.8 dyne/cm
Enthalpy of Vaporization: 97.09 kJ/mol
Vapour Pressure: 1.18E-16 mmHg at 25°C
The chemical synonyms of Dibromofluorescein (596-03-2) are olvent red 72 ; 4’,5’-Dibromo-fluorescei ; 4’,5’-Dibromofluororescein ; 9’-(9H)Xanthen)-3-one,4’,5’-dibromo-3’,6’-dihydroxy-spiro(isobenzofuran-1(3H) ; Acidorange11 ; Eosinicacid.The molecular structure of Dibromofluorescein (596-03-2) is .
Dibromofluorescein (596-03-2) is used as light-emitting material.
1. | mmo-sat 100 ng/plate | ENMUDM Environmental Mutagenesis. 1 (1979),116. | ||
2. | orl-rat TDLo:15,556 mg/kg/21D-C | TRENAF Kenkyu Nenpo-Tokyo-toritsu Eisei Kenkyusho. Annual Report of Tokyo Metropolitan Research Laboratory of Public Health. 27 (1976),145. |
Reported in EPA TSCA Inventory.
Experimental reproductive effects. Mutation data reported. When heated to decomposition it emits toxic fumes of Br−.
Hazard Codes: Xi,T
Xi: Irritant
T: Toxic
Risk Statements: 36-25-36/37/38
25: Toxic if swallowed
36: Irritating to the eyes
36/37/38: Irritating to eyes, respiratory system and skin
Safety Statements: 22-24/25-45-36-26
22: Do not breathe dust
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36: Wear suitable protective clothing
45: In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)
24/25: Avoid contact with skin and eyes