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Sulfamethoxazole 723-46-6

3-(p-aminophenylsulfonamido)-5-methylisoxazole;3-(para-Aminophenylsulphonamido)-5-methylisoxazole;3-Sulfanilamido-5-methylisoxazole;3-Sulphanilamido-5-methylisoChemicalbookxazole;4-amino-n-(5-methyl-3-isoxazolyl)-benzenesulfonamid;5-Methyl-3-sulfanilamidoisoxazole;5-methyl-3-sulfanylamidoisoxazole;5-Methyl-3-sulfonylamidoisoxazole
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  • 723-46-6

  • bosschemical

  • 723-46-6

Sulfamethoxazole Basic information
Product Name: Sulfamethoxazole
CAS: 723-46-6
MF: C10H11N3O3S
MW: 253.28
EINECS: 211-963-3
Mol File: 723-46-6.mol
Sulfamethoxazole Chemical Properties
Melting point 166 °C
Boiling point 482℃
density 1.3915 (rough estimate)
refractive index 1.6630 (estimate)
Fp >110°(230°F)
storage temp. Keep in dark place,Inert atmosphere,Room temperature
solubility Practically insoluble in water, freely soluble in acetone, sparingly soluble in ethanol (96 per cent). It dissolves in dilute solutions of sodium hydroxide and in dilute acids.
form neat
pka pKa 5.60±0.05 (Uncertain)
color White to Pale Yellow
Water Solubility Soluble in ethanol or acetone. Very slightly soluble in water
Sensitive Light Sensitive
Merck 148,918
BRN 6732984
BCS Class 2,4
Stability: Stable, but light sensitive. Incompatible with strong oxidizing agents.
InChIKey JLKIGFTWXXRPMT-UHFFFAOYSA-N
CAS DataBase Reference 723-46-6(CAS DataBase Reference)
NIST Chemistry Reference Sulfanilamide, n1-(5-methyl-3-isoxazolyl)-(723-46-6)
IARC 3 (Vol. Sup 7, 79) 2001
EPA Substance Registry System Sulfamethoxazole (723-46-6)

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