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Metabolites & Degradation Products

N-Hydroxy Sulfamethoxazole

Reference StandardAvailable on request

N-Hydroxy Sulfamethoxazole (CAS 114438-33-4) supplier Zemixal: C10H11N3O4S, COA and SDS with every lot, worldwide shipping.

Pack sizes
N-Hydroxy Sulfamethoxazole chemical structure
CAS number114438-33-4
FormulaC10H11N3O4S
Molar mass269.28 g/mol
Physical formSolid
HS code38229090
InChIKeyMJAMPGKHIZXVFJ-UHFFFAOYSA-N
IUPAC name4-(hydroxyamino)-N-(5-methyl-1,2-oxazol-3-yl)benzenesulfonamide

About N-Hydroxy Sulfamethoxazole

Zemixal lists N-Hydroxy Sulfamethoxazole for laboratories that identify, quantify or control Sulfamethoxazole and its related substances. Identity at a glance (Reference Standard): CAS 114438-33-4, formula C10H11N3O4S and molar mass 269.28 g/mol. It is handled as a solid.

Where it is used

  • Metabolite identification
  • Stability-indicating methods
  • Impurity profiling

Handling and storage

It carries the GHS signal word Warning (H315, H317, H319 and H335), so wear gloves and eye protection and work with good ventilation.

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. Every shipment includes a certificate of analysis with characterisation data. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Sulfamethoxazole

See every impurity, metabolite and related compound we list for this API.

Sulfamethoxazole standards

Typical uses

  • Metabolite identification
  • Stability-indicating methods
  • Impurity profiling

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Specifications and identifiers

Specifications of N-Hydroxy Sulfamethoxazole
Product nameN-Hydroxy Sulfamethoxazole
Catalogue numberZX-036223
CAS number114438-33-4
IUPAC name4-(hydroxyamino)-N-(5-methyl-1,2-oxazol-3-yl)benzenesulfonamide
Molecular formulaC10H11N3O4S
Molar mass269.28 g/mol
Exact mass269.047
GradeReference Standard
Physical formSolid
XLogP31.1
H-bond donors / acceptors3 / 7
Topological polar surface area113 Ų
HS code38229090
InChIKeyMJAMPGKHIZXVFJ-UHFFFAOYSA-N
SMILESCC1=CC(=NO1)NS(=O)(=O)C2=CC=C(C=C2)NO
PubChem CID114821
SynonymsSulfamethoxazole hydroxylamine, Smx-HA, sulphamethoxazole hydroxylamine, 4-(Hydroxyamino)-N-(5-methyl-3-isoxazolyl)benzenesulfonamide, Benzenesulfonamide, 4-(hydroxyamino)-N-(5-methyl-3-isoxazolyl)-, 4-(hydroxyamino)-N-(5-methylisoxazol-3-yl)benzenesulfonamide, Sulfamethoxazole N4-Hydroxylamine, 4-(hydroxyamino)-N-(5-methyl-1,2-oxazol-3-yl)benzene-1-sulfonamide, Hydroxylamine-SMX, Hydroxylamine of sulfamethoxazole, Sulfamethoxazole-N4-hydroxylamine, 3-(4-hydroxylamino phenylsulfonamido)-5-methylisoxazole

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful

Signal word Warning

  • H315Causes skin irritation
  • H317May cause an allergic skin reaction
  • H319Causes serious eye irritation
  • H335May cause respiratory irritation

Precautionary statements P261, P264, P264 + P265, P271, P272, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P333 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of N-Hydroxy Sulfamethoxazole
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about N-Hydroxy Sulfamethoxazole

Which CAS number identifies N-Hydroxy Sulfamethoxazole?
N-Hydroxy Sulfamethoxazole is registered under CAS 114438-33-4. You may also see it listed as Sulfamethoxazole hydroxylamine, Smx-HA, sulphamethoxazole hydroxylamine. Our catalogue number for this item is ZX-036223.
What are the formula and molar mass of N-Hydroxy Sulfamethoxazole?
For N-Hydroxy Sulfamethoxazole, its formula is C10H11N3O4S and its molar mass is 269.28 g/mol. The systematic (IUPAC) name is 4-(hydroxyamino)-N-(5-methyl-1,2-oxazol-3-yl)benzenesulfonamide. InChIKey MJAMPGKHIZXVFJ-UHFFFAOYSA-N lets you match it in any structure database.
How is N-Hydroxy Sulfamethoxazole used in pharmaceutical QC?
N-Hydroxy Sulfamethoxazole is a characterised reference material linked to Sulfamethoxazole. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for N-Hydroxy Sulfamethoxazole?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with N-Hydroxy Sulfamethoxazole?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship N-Hydroxy Sulfamethoxazole to my country?
Yes. Because N-Hydroxy Sulfamethoxazole is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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