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Merck

Y0000412

Sulfamethoxazole impurity A

European Pharmacopoeia (EP) Reference Standard

Sinónimos:

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

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About This Item

Fórmula empírica (notación de Hill):
C12H13N3O4S
Número de CAS:
Peso molecular:
295.31
Beilstein/REAXYS Number:
285801
MDL number:
UNSPSC Code:
41116107
PubChem Substance ID:
NACRES:
NA.24

grade

pharmaceutical primary standard

API family

sulfamethoxazole

manufacturer/tradename

EDQM

application(s)

pharmaceutical (small molecule)

format

neat

storage temp.

2-8°C

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)

InChI key

GXPIUNZCALHVBA-UHFFFAOYSA-N

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General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the Issuing Pharmacopoeia. For further information and support please go to the website of the issuing Pharmacopoeia.

Application

Sulfamethoxazole impurity A EP Reference standard, intended for use in laboratory tests only as specifically prescribed in the European Pharmacopoeia.

Packaging

The product is delivered as supplied by the issuing Pharmacopoeia. For the current unit quantity, please visit the EDQM reference substance catalogue.

Other Notes

Sales restrictions may apply.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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T B Vree et al.
The Veterinary quarterly, 9(4), 378-381 (1987-10-01)
The snail Cepaea hortensis is able to acetylate and hydroxylate sulphamethoxazole in a similar way to man. About one percent deacetylation, but no hydroxylation of N4-acetysulphamethoxazole takes place. The relative rates of the metabolic pathways for hydroxylation and acetylation of
T B Vree et al.
The Veterinary quarterly, 9(4), 381-384 (1987-10-01)
The turtle Pseudemys scripta elegans is able to hydroxylate and acetylate Sulphamethoxazole in a way that is comparable to man, i.e. the rate and yield of hydroxylation equals that of the acetylation. The hydroxy metabolites 5-hydroxy- and N4-acetyl-5-hydroxysulphamethoxazole are not
A Weber et al.
Journal of chromatography, 278(2), 337-345 (1983-12-09)
We describe a rapid, precise and simple procedure for the quantitative determination of trimethoprim, sulfamethoxazole, and N4-acetylsulfamethoxazole in body fluids by reversed-phase high-performance liquid chromatography. This method utilizes antipyrine as an internal standard with the compounds detected by dual-wavelength monitoring
Y Zhang et al.
Analytical biochemistry, 212(2), 481-486 (1993-08-01)
We present gas chromatographic-mass spectrometric assays for (i) the concentration of sulfamethoxazole and (ii) the concentration and molar percentage enrichment of acetyl-sulfamethoxazole in biological fluids. The compounds are extracted with ethyl acetate, derivatized with either diazomethane or pentafluorobenzyl bromide, and
T B Vree et al.
The Veterinary quarterly, 6(3), 169-173 (1984-07-01)
Sulfamethoxazole and N4-acetylsulfamethoxazole are excreted by fresh water turtles Pseudemys scripta elegans in a biphasic mode, characterized half-lives of 5 and 100 min. Acetylation and deacetylation reactions cannot be detected below a dose of 50 mg/kg. The mass balance of

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