4',5'-DIBROMOFLUORESCEIN
4',5'-DIBROMOFLUORESCEIN Basic information
- Product Name:
- 4',5'-DIBROMOFLUORESCEIN
- Synonyms:
-
- Dibromofluorescein (contains Mono-, Tri- and Tetra-)
- 4′,5′-Dibromofluorescein,Solvent Red72
- SOLVENT RED 72
- 4',5'-Dibromof
- 4',5'-DibroMofluorescein, ca. 95% dye content
- 4',5'-dibromo-3',6'-dihydroxyspiro[2-benzofuran-3,9'-xanthene]-1-one
- 4’,5’-dibromo-fluorescei
- 4’,5’-dibromofluororescein
- CAS:
- 596-03-2
- MF:
- C20H10Br2O5
- MW:
- 490.1
- EINECS:
- 209-876-0
- Mol File:
- 596-03-2.mol
4',5'-DIBROMOFLUORESCEIN Chemical Properties
- Melting point:
- 270-273 °C(lit.)
- Boiling point:
- 633.7±55.0 °C(Predicted)
- Density
- 1.6743 (rough estimate)
- vapor pressure
- 0Pa at 25℃
- refractive index
- 1.5010 (estimate)
- storage temp.
- Sealed in dry,Room Temperature
- form
- powder to crystal
- pka
- 8.14±0.20(Predicted)
- Colour Index
- 45370
- color
- Light yellow to Brown
- Water Solubility
- 153.49μg/L at 25℃
- Merck
- 14,3022
- BRN
- 57189
- CAS DataBase Reference
- 596-03-2(CAS DataBase Reference)
- EPA Substance Registry System
- Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one, 4',5'-dibromo-3',6'-dihydroxy- (596-03-2)
Safety Information
- Hazard Codes
- Xi,T
- Risk Statements
- 36-25-36/37/38
- Safety Statements
- 22-24/25-45-36-26
- RIDADR
- UN 2811 6.1/PG 3
- WGK Germany
- 3
- RTECS
- LM5200000
- TSCA
- Yes
- HS Code
- 32129000
MSDS
- Language:English Provider:SigmaAldrich
- Language:English Provider:ACROS
- Language:English Provider:ALFA
4',5'-DIBROMOFLUORESCEIN Usage And Synthesis
Chemical Properties
orange powder
Uses
4'',5''-Dibromofluorescein is a stain with an absorption maximum of 450 nm. Dyes and metabolites, Environmental Testing
Preparation
Fluorescein (C.I. Acid Yellow 73, C.I. 45350) in the sodium hydroxide solution two bromination, and??made into a free acid form.
Safety Profile
Poison by ingestion and intravenous routes. An herbicide. When heated to decomposition it emits highly toxic fumes of NOx, CN-, and Br-. See also NITRILES.
Properties and Applications
brilliant yellow light yellow. Slightly soluble in water for orange, with weak yellow fluorescence, soluble in ethanol for orange, with green yellow fluorescence, soluble in acetone peachblossom, with yellow fluorescence, soluble in Tetrahydrofurfuryl alcohol. In concentrated sulfuric acid to red light yellow, dilution after yellow brown, with orange precipitation. Dye aqueous solution to join sodium hydroxide as red edge; In the glycerol and liquid paraffin in good dispersibility. Used in medicines and cosmetics coloring.
Purification Methods
Crystallise it from aqueous 30% EtOH. [Beilstein 19/6 V 462.]
4',5'-DIBROMOFLUORESCEINSupplier
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4',5'-DIBROMOFLUORESCEIN(596-03-2)Related Product Information
- MERCURY DIBROMOFLUORESCEIN,Mercury dibromofluorescein disodium salt
- CALCOCHROME ORANGE R,CHROME ORANGE
- c.i. pigment orange 41,C.I. Pigment Orange 40
- c.i. pigment orange 43
- EOSIN
- Acid Red 87
- 4',5'-DIBROMOFLUORESCEIN
- 2',4',5',7'-TETRABROMO-3,4,5,6-TETRACHLOROFLUORESCEIN
- Acid Red 92
- dipotassium 3,6-dichloro-2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate
- 10-NONYLACRIDINE ORANGE BROMIDE
- CHROMOLAN ORANGE
- 4',5'-Dibromofluorescein disodium
- CALCOCID FAST LIGHT ORANGE 2G
- CHROME ORANGE
- CHROME ORANGE
- C.I. Pigment Orange 77
- CALCOCID FAST LIGHT ORANGE 2G