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Merck
CN

90115

N4-Acetylsulfamethoxazole

analytical standard

Synonym(s):

N-{4-{[(5-Methyl-3-isoxazolyl)amino]sulfonyl}phenyl}acetamide, Sulfisomezole-N4-acetate

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About This Item

Empirical Formula (Hill Notation):
C12H13N3O4S
CAS Number:
Molecular Weight:
295.31
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
MDL number:
Beilstein/REAXYS Number:
285801
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Product Name

N4-Acetylsulfamethoxazole, analytical standard

InChI key

GXPIUNZCALHVBA-UHFFFAOYSA-N

SMILES string

O=S(NC1=NOC(C)=C1)(C2=CC=C(NC(C)=O)C=C2)=O

InChI

1S/C12H13N3O4S/c1-8-7-12(14-19-8)15-20(17,18)11-5-3-10(4-6-11)13-9(2)16/h3-7H,1-2H3,(H,13,16)(H,14,15)

grade

analytical standard

assay

≥98.5% (HPLC)

shelf life

limited shelf life, expiry date on the label

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

impurities

≤0.5% water

application(s)

forensics and toxicology
pharmaceutical (small molecule)

format

neat

Quality Level

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Application

N4-Acetylsulfamethoxazole may be used as a reference standard for the determination of N4-acetylsulfamethoxazole in biological fluids by high-performance liquid chromatographic method.
Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

wgk

WGK 3

Storage Class

11 - Combustible Solids

flash_point_f

Not applicable

flash_point_c

Not applicable


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High-performance liquid chromatographic quantitation of trimethoprim, sulfamethoxazole, and N4-acetylsulfamethoxazole in body fluids.
Weber A, et al.
Journal of Chromatography. B, Biomedical Applications, 278, 337-345 (1983)

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