Solvent Red 23 CAS#: 85-86-9

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Solvent Red 23

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Solvent Red 23 Basic information

Solvent Red 23 Chemical Properties

Melting point:199 °C (dec.)(lit.)
Boiling point:486.01°C (rough estimate)
Density 1.2266 (rough estimate)
refractive index 1.6620 (estimate)
storage temp. Amber Vial, Refrigerator
solubility Insoluble in water; soluble in benzene, chloroform; moderately soluble in acetone, ether, petroleum ether; slightly soluble in ethanol, xylene
Colour Index 26100
pka13.45±0.50(Predicted)
form Powder
color Red-brown
λmax507 nm, 354 nm
Merck 14,8884
BRN 2016384
Stability:Stable. Incompatible with strong oxidizing agents.
Biological ApplicationsAntiseptic; preventing prostate cancer; medical devices; dental impression materials
InChIKeyFHNINJWBTRXEBC-HXEHWPEMSA-N
CAS DataBase Reference85-86-9(CAS DataBase Reference)
EPA Substance Registry SystemC.I. Solvent Red 23 (85-86-9)

Safety Information

MSDS

Solvent Red 23 Usage And Synthesis

Chemical Propertiesreddish brown powder
UsesWeakly acidic azo dye. Biological stain.
UsesDye. Biological stain.
DefinitionChEBI: A bis(azo) compound that is 2-naphthol substituted at position 1 by a 4-{[(2-methylphenyl)diazenyl]phenyl}diazenyl group. A fat-soluble dye predominantly used for demonstrating triglycerides in frozen sections, but which may also stain some protein bound l pids in paraffin sections.
Contact allergensSolvent Red 23 is an oil-soluble red azo-dye used in cosmetic products in Japan. Cases were reported in hairdressers, who also reacted to PPD (the molecule is likely to be hydrolyzed into PPD) and to p-aminoazobenzene. One case of contact dermatitis was reported in the metal industry.
Safety ProfilePoison by intraperitoneal route. Moderately toxic by subcutaneous and intrapleural routes. Questionable carcinogen. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx.
Purification MethodsCrystallise the dye from EtOH, EtOH/water or *benzene/absolute EtOH (1:1). [Beilstein 16 II 75, 16 III 148, 16 IV 248.]

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