4-Amino-N-(5-methyloxazol-2-yl)benzenesulfonamide
- CAS
- 51821-47-7
- Formula
- C10H11N3O3S
- MW
- 253.28 g/mol
VQ-028144
Impurity reference standards
Sulfamethoxazole impurities & reference standards
Characterised Sulfamethoxazole impurities, degradation products and related compounds for analytical method development, validation, QC release and regulatory filings.
10reference materials
1nitrosamine impurities
2isotope-labelled
COAHPLC · NMR · MS on request
4-Amino-N-(5-methyloxazol-4-yl)benzenesulfonamide
- CAS
- 1258421-06-5
- Formula
- C10H11N3O3S
- MW
- 253.3 g/mol
VQ-028145
Sulfamethoxazole N4-glucoside (alpha/beta mixture)
- CAS
- 119691-75-7
- Formula
- C16H21N3O8S
- MW
- 415.4 g/mol
VQ-028143
FAQs — Sulfamethoxazole impurities
Which Sulfamethoxazole impurities do you supply?
We list 10 Sulfamethoxazole-related reference materials, including process impurities, degradation products, nitrosamine impurities, stable-isotope-labelled standards and related compounds. Each is supplied with a COA, and characterisation data (HPLC, 1H-NMR, MS, IR) can be provided on request.
What are Sulfamethoxazole impurity standards used for?
They are used for analytical method development and validation, impurity identification and quantification, forced-degradation and stability studies, and to support ANDA, DMF and other regulatory submissions under ICH Q3A/Q3B (and ICH M7 for mutagenic impurities).
Can you synthesise a Sulfamethoxazole impurity that is not listed?
Yes. Our custom synthesis service can prepare and characterise unlisted impurities, metabolites and labelled analogues from milligram to gram scale. Share the structure or name and required quantity for a quotation.
Request Sulfamethoxazole impurity standards
We reply within one business day with price, pack options, lead time and documentation.