Sulfamethoxazole 723-46-6 99% purity
Sulfamethoxazole Basic information
Product Name: Sulfamethoxazole
Synonyms: 3-(p-aminophenylsulfonamido)-5-methylisoxazole;3-(para-Aminophenylsulphonamido)-5-methylisoxazole;3-Sulfanilamido-5-methylisoxazole;3-Sulphanilamido-5-methylisoxazole;4-amino-n-(5-methyl-3-isoxazolyl)-benzenesulfonamid;5-Methyl-3-sulfanilamidoisoxazole;5-methyl-3-sulfanylamidoisoxazole;5-Methyl-3-sulfonylamidoisoxazole
CAS: 723-46-6
MF: C10H11N3O3S
MW: 253.28
EINECS: 211-963-3
Product Categories:
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. 0-6°C
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)
Water Solubility Soluble in ethanol or acetone. Very slightly soluble in water
Sensitive Light Sensitive
Merck 14,8918
BRN 6732984
Stability: Stable, but light sensitive. Incompatible with strong oxidizing agents.
InChIKey JLKIGFTWXXRPMT-UHFFFAOYSA-N
CAS DataBase Reference 723-46-6(CAS DataBase Reference)
IARC 3 (Vol. Sup 7, 79) 2001
NIST Chemistry Reference Sulfanilamide, n1-(5-methyl-3-isoxazolyl)-(723-46-6)
EPA Substance Registry System Sulfamethoxazole (723-46-6)
Safety Information
Hazard Codes Xi,Xn
Risk Statements 36/37/38-43-22
Safety Statements 26-36-36/37/39-22
WGK Germany 2
RTECS WP0700000
Hazard Note Irritant
TSCA Yes
HazardClass IRRITANT
HS Code 29350090
Hazardous Substances Data 723-46-6(Hazardous Substances Data)
Toxicity LD50 orally in mice: 3662 mg/kg (Yamamoto)
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