Description

4-Methoxy-2-(3-Oxobutanamido)Benzenesulfonic Acid is a specialized organic intermediate featuring a benzenesulfonic acid core functionalized with methoxy and acetoacetamide groups. This unique molecular structure makes it a valuable building block for the synthesis of more complex molecules, particularly in fine chemical and pharmaceutical manufacturing. It is primarily sought after by research and development chemists and industrial manufacturers in the life sciences sector for creating novel compounds with targeted properties.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring a sulfonated aromatic scaffold.
• Dye and Pigment Synthesis: Used in the production of specialized azo dyes and organic pigments, where the sulfonic acid group enhances water solubility.
• Chemical Research & Development: Serves as a versatile building block in organic synthesis for creating libraries of new chemical entities in drug discovery programs.
• Ligand and Chelating Agent Precursor: The functional groups can be modified to create ligands for metal catalysis or chelating agents.
• Fine Chemical Production: Employed in the manufacture of other high-value, low-volume specialty chemicals used in various industrial processes.

Basic Information

Product Name	4-Methoxy-2-(3-Oxobutanamido)Benzenesulfonic Acid
CAS No.	6375-00-4
Molecular Formula	C11H13NO6S
Molecular Weight	287.29 g/mol
Synonyms	2-Acetoacetamido-5-methoxybenzenesulfonic acid; 5-Methoxy-2-acetoacetamidobenzenesulfonic acid; Acetoacet-m-anisidide-6-sulfonic acid; N-(5-Methoxy-2-sulfophenyl)acetoacetamide; 4-Methoxy-2-acetoacetamidobenzenesulfonic acid; AA-m-ans-6-SA; Benzenesulfonic acid, 4-methoxy-2-(3-oxobutanamido)-
EINECS	228-926-6

Quality Control

Our production of 4-Methoxy-2-(3-Oxobutanamido)Benzenesulfonic Acid adheres to stringent in-process controls and final batch testing to ensure consistent quality and purity. Each lot is analyzed against established specifications, with a comprehensive Certificate of Analysis (COA) provided to confirm identity, potency, and impurity profiles. We support compliance with global regulatory frameworks, and specifications can be aligned with customer-specific requirements for research or cGMP manufacturing.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture, which can affect product stability and handling properties.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 2.0%

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