Description

N(4)-Acetylsulfisoxazole is a key pharmaceutical intermediate and chemical building block, primarily recognized for its role in the synthesis of sulfonamide antibiotics. This compound is valued for its high purity and consistent quality, which are critical for ensuring the efficacy and safety of downstream pharmaceutical products. It is essential for manufacturers and research institutions in the pharmaceutical, biotechnology, and fine chemical sectors engaged in antibiotic development and advanced organic synthesis.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of Sulfisoxazole and related sulfonamide antibiotic agents.
• Antibiotic Research & Development: Used in medicinal chemistry for developing and testing new antimicrobial compounds.
• Fine Chemical Synthesis: Serves as a specialized building block for constructing complex molecules in laboratory and industrial settings.
• Biochemical Studies: Employed in research to study the mechanism of action and resistance of sulfonamide drugs.
• Reference Standard: Utilized as an analytical standard in quality control laboratories for HPLC, LC-MS, or NMR analysis.

Basic Information

Product Name	N(4)-Acetylsulfisoxazole
CAS No.	4206-74-0
Molecular Formula	C13H15N3O4S
Molecular Weight	309.34 g/mol
Synonyms	4-Acetamido-N-(3,4-dimethyl-5-isoxazolyl)benzenesulfonamide; N4-Acetylsulfisoxazole; N4-Acetyl Sulfisoxazole; N-Acetylsulfisoxazole; Sulfisoxazole Acetyl; Acetylsulfisoxazole; 1-(4-((3,4-Dimethylisoxazol-5-yl)sulfamoyl)phenyl)ethan-1-one
EINECS	224-124-8

Quality Control

Our N(4)-Acetylsulfisoxazole is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, identity confirmation by IR and NMR, and residual solvent analysis, to ensure it meets stringent specifications for pharmaceutical intermediates. A detailed Certificate of Analysis (COA) is provided with every shipment, and we support compliance with cGMP, ISO, and other relevant regulatory frameworks for global supply.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept tightly sealed and away from direct light to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.