Acid Red 92

Acid Red 92 Basic information
Product Name:Acid Red 92
Synonyms:11969red;3,4,5,6-Tetrachloro-2-(1,4,5,8-tetrabromo-6-hydroxy-3-oxoxanthen-9-yl)benzoic acid disodium salt;2′,4′,5′,7′-TETRABROMO-3,4,5,6-TETRACHLOROFLUORESCEIN SODIUM SALT;2′,4′,5′,7′-TETRABROMO-4,5,6,7-TETRACHLOROFLUORESCEIN DISODIUM SALT;3,4,5,6-tetrachloro-2-(1,4,5,8-tetrabromo-6-hydroxy-3-oxoxanthen-9-yl)benzoic acid;AKA231;RED 28;PHLOXINE B, CERTIFIED
CAS:18472-87-2
MF:C20H5Br4Cl4NaO5
MW:809.66
EINECS:242-355-6
Product Categories:Organics;Analytical Chemistry;Food Colors by Food Sanitation Law in Japan;Fluorescent;Xanthene
Mol File:18472-87-2.mol
Acid Red 92 Structure
Acid Red 92 Chemical Properties
Melting point >250°C
density 0.871[at 20℃]
vapor pressure 0Pa at 25℃
storage temp. Store at RT.
solubility 100g/l
Colour Index 45410
form Powder/Solid
color Red Brown
PH9.7 (1g/l, H2O, 20℃)
PH RangeNonQ uorescence (2.5) to yellowish-blue Q uorescence (4.0)
λmax548nm, 510nm
BRN 3887100
Stability:Stable. Incompatible with strong oxidizing agents.
Biological ApplicationsDetecting proteins; treating microbial infection,parasitic infection,skin,mouth,digestive tract,urinary tract,reproductive tract,respiratory tract,circulatory system,head,neck,endocrine system
Major ApplicationOptical waveguides, color filter, lithographic printing plates, display device, visualization of dentaldevice, inks, highlighters, textiles, hair dyes, cosmetics, visualization of dentalplaque, treatment of infectitious diseases, antitumor agents
LogP0.165 at 25℃
CAS DataBase Reference18472-87-2(CAS DataBase Reference)
EPA Substance Registry SystemPhloxine B (18472-87-2)
Safety Information
Hazard Codes Xi
Risk Statements 36
Safety Statements 22-24/25-37/39-26
WGK Germany 2
RTECS LM5900000
HS Code 32041200
ToxicityLD50 orally in Rabbit: 2870 mg/kg
MSDS Information
ProviderLanguage
3,4,5,6-Tetrachloro-2-(1,4,5,8-tetrabromo-6-hydroxy-3-oxoxanthen-9-yl)benzoic acid disodium saltEnglish
SigmaAldrichEnglish
ACROSEnglish
Acid Red 92 Usage And Synthesis
Chemical Propertiesred-brown powder
UsesPhloxine B acts as the sensitizers of dye-sensitized solar cells. Also, it is a fluorescein photoactive dye. Dyes and metabolites, Environmental Testing.
Preparationthe Resorcinol and 4,5,6,7-Tetrachloroisobenzofuran-1,3-dione condensation, get 3,4,5,6-Tetrachlorophthalic acid four bromination, and translated into sodium salt.
Flammability and ExplosibilityNonflammable
Safety ProfilePoison by intravenous route. An experimental teratogen. Other experimental reproductive effects. When heated to decomposition it emits very toxic fumes of Br-, Cl-, and NazO.
Properties and Applicationsbrilliant pink. Soluble in water for red light blue, with weak dark green fluorescent, soluble in ethanol for blue light red, with a brick red fluorescence. In concentrated sulfuric acid for yellow, diluted into yellow red precipitation.
StandardLight FastnessSoapingPersperation FastnessOxygen bleachingFastness to seawaterFadingStainFadingStainFadingStainAATCC13
Acid Red 92 Preparation Products And Raw materials
Raw materialsFormaldehyde–>Resorcinol–>Melamine–>p-Toluenesulfonamide–>Tetrachlorophthalic anhydride–>Tetrachlorofluorescein–>Tetrachlorophthalic anhydride–>Resorcinol–>Chlorthal
Preparation ProductsAcid Red 94

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