4-Amino-N-(5-methyloxazol-2-yl)benzenesulfonamide
- CAS
- 51821-47-7
- Formula
- C10H11N3O3S
- MW
- 253.28 g/mol
ZX-027044
Nitrosamine Impurities
4-Nitroso Sulfamethoxazole
Reference StandardAvailable on request
Buy 4-Nitroso Sulfamethoxazole (CAS 131549-85-4) from Zemixal. Request a quote with price, lead time and documents. Exported from India with full paperwork.
CAS number131549-85-4
FormulaC10H9N3O4S
Molar mass267.26 g/mol
Physical formSolid
HS code38229090
InChIKeyGHNQGDUYHCZZPT-UHFFFAOYSA-N
IUPAC nameN-(5-methyl-1,2-oxazol-3-yl)-4-nitrosobenzenesulfonamide
About 4-Nitroso Sulfamethoxazole
Zemixal lists 4-Nitroso Sulfamethoxazole for laboratories that identify, quantify or control Sulfamethoxazole and its related substances. Key data (Reference Standard): CAS 131549-85-4, formula C10H9N3O4S and molar mass 267.26 g/mol. It is handled as a solid.
Typical applications
- Nitrosamine risk assessment
- Trace LC-MS/MS quantitation
- Method validation (AMV)
- Regulatory submissions
Storage and safety notes
Hazard communication follows GHS (Warning: H315, H317, H319 and H335). Our SDS lists exposure controls and first-aid measures.
Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. You receive a certificate of analysis with characterisation data with each order. Request pricing online and we confirm availability, documentation and freight to your country.
Reference standards for Sulfamethoxazole
See every impurity, metabolite and related compound we list for this API.
Sulfamethoxazole standardsTypical uses
- Nitrosamine risk assessment
- Trace LC-MS/MS quantitation
- Method validation (AMV)
- Regulatory submissions
Applications
Specifications and identifiers
| Product name | 4-Nitroso Sulfamethoxazole |
|---|---|
| Catalogue number | ZX-032585 |
| CAS number | 131549-85-4 |
| IUPAC name | N-(5-methyl-1,2-oxazol-3-yl)-4-nitrosobenzenesulfonamide |
| Molecular formula | C10H9N3O4S |
| Molar mass | 267.26 g/mol |
| Exact mass | 267.0314 |
| Grade | Reference Standard |
| Physical form | Solid |
| XLogP3 | 0.9 |
| H-bond donors / acceptors | 1 / 7 |
| Topological polar surface area | 110 Ų |
| HS code | 38229090 |
| InChIKey | GHNQGDUYHCZZPT-UHFFFAOYSA-N |
| SMILES | CC1=CC(=NO1)NS(=O)(=O)C2=CC=C(C=C2)N=O |
| PubChem CID | 125483 |
| Synonyms | N-(5-Methyl-3-isoxazolyl)-4-nitrosobenzenesulfonamide, Benzenesulfonamide, N-(5-methyl-3-isoxazolyl)-4-nitroso-, nitroso sulphamethoxazole, SMX-NO, N-(5-methylisoxazol-3-yl)-4-nitrosobenzenesulfonamide, N-(5-methyl-1,2-oxazol-3-yl)-4-nitrosobenzene-1-sulfonamide, 4-nitroso-SMX, Nitroso-sulfamethoxazole, 4-Nitroso Sulfamethoxazole, > 90per cent, N-(5-methylisoxazol-3-yl)-4-nitroso-benzenesulfonamide |
Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.
Safety and GHS hazards
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
| 10 mg | Quoted on request | |
| 25 mg | Quoted on request | |
| 50 mg | Quoted on request | |
| 100 mg | Quoted on request |
Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.
Questions about 4-Nitroso Sulfamethoxazole
Which CAS number identifies 4-Nitroso Sulfamethoxazole?
4-Nitroso Sulfamethoxazole is registered under CAS 131549-85-4. You may also see it listed as N-(5-Methyl-3-isoxazolyl)-4-nitrosobenzenesulfonamide, Benzenesulfonamide, N-(5-methyl-3-isoxazolyl)-4-nitroso-, nitroso sulphamethoxazole. Our catalogue number for this item is ZX-032585.
What are the formula and molar mass of 4-Nitroso Sulfamethoxazole?
For 4-Nitroso Sulfamethoxazole, its formula is C10H9N3O4S and its molar mass is 267.26 g/mol. The systematic (IUPAC) name is N-(5-methyl-1,2-oxazol-3-yl)-4-nitrosobenzenesulfonamide. InChIKey GHNQGDUYHCZZPT-UHFFFAOYSA-N lets you match it in any structure database.
How is 4-Nitroso Sulfamethoxazole used in pharmaceutical QC?
4-Nitroso 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 4-Nitroso 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 4-Nitroso 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 4-Nitroso Sulfamethoxazole to my country?
Yes. Because 4-Nitroso 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.
More Sulfamethoxazole standards
More in Nitrosamine Impurities
Sulfamethoxazole N4-glucoside (alpha/beta mixture)
- CAS
- 119691-75-7
- Formula
- C16H21N3O8S
- MW
- 415.4 g/mol
ZX-027043
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