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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
Product Name
Sulfamethoxazole impurity A, European Pharmacopoeia (EP) Reference 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
pharmaceutical primary standard
API family
sulfamethoxazole
manufacturer/tradename
EDQM
application(s)
pharmaceutical (small molecule)
format
neat
storage temp.
2-8°C
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Application
Sulfamethoxazole impurity A EP Reference standard, intended for use in laboratory tests only as specifically prescribed in the European Pharmacopoeia.
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.
Other Notes
Sales restrictions may apply.
Packaging
The product is delivered as supplied by the issuing Pharmacopoeia. For the current unit quantity, please visit the EDQM reference substance catalogue.
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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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, 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, 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
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
O Spreux-Varoquaux et al.
Journal of chromatography, 274, 187-199 (1983-05-13)
A normal-phase high-performance liquid chromatographic method was developed to determine therapeutic concentrations of trimethoprim, sulphamethoxazole, and its N4-acetyl derivative in biological fluids. The compounds are extracted at pH 6.2 using ethyl acetate--chloroform in a single extraction. The detection limit is
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