Description

3-Amino-4-Methyl-5-(3-Aminobenzamido)Benzene Sulfonic Acid is a specialized aromatic sulfonic acid derivative featuring dual amino functionalities, making it a valuable intermediate for advanced synthesis. This compound is critical for applications requiring precise molecular architecture and specific functional group interactions, such as in the production of high-performance dyes and functional polymers. It is primarily sought by research institutions and industrial manufacturers in the fine chemical, pharmaceutical, and advanced materials sectors for its role in creating complex, target-specific molecules.

Application

• Dye and Pigment Intermediate: A key building block for synthesizing azo dyes, acid dyes, and other complex colorants, particularly where lightfastness and specific hue properties are required.
• Pharmaceutical Synthesis: Serves as a versatile intermediate in the research and development of active pharmaceutical ingredients (APIs), especially those with sulfonamide or aniline-based structures.
• Polymer and Resin Modifier: Used to introduce sulfonic acid and amine groups into polymer chains, enhancing properties like hydrophilicity, dyeability, or ionic character.
• Liquid Crystal and OLED Material Precursor: Employed in the synthesis of organic electronic materials due to its conjugated aromatic system and functional handles for further derivatization.
• Corrosion Inhibitor Formulation: Acts as a component in specialty chemical formulations designed to protect metal surfaces in industrial processes.
• Research & Development Chemical: Utilized in academic and industrial R&D labs as a standard or novel reagent for organic synthesis and material science projects.

Basic Information

Product Name	3-Amino-4-Methyl-5-(3-Aminobenzamido)Benzene Sulfonic Acid
CAS No.	6661-55-8
Molecular Formula	C14H15N3O4S
Molecular Weight	321.35 g/mol
Synonyms	5-(3-Aminobenzamido)-2-amino-4-methylbenzenesulfonic acid; Benzenesulfonic acid, 3-amino-4-methyl-5-[(3-aminobenzoyl)amino]-; 3-Amino-4-methyl-5-(3-aminobenzoylamino)benzenesulfonic acid; 2-Amino-4-methyl-5-(3-aminobenzamido)benzenesulfonic acid; 3,3'-Diamino-4-methyl-5-sulfobenzanilide; 3-Amino-4-methyl-5-(m-aminobenzamido)benzenesulfonic acid; 5-(3-Aminobenzoylamino)-2-amino-4-methylbenzenesulfonic acid
EINECS	Contact for details

Quality Control

Our production of 3-Amino-4-Methyl-5-(3-Aminobenzamido)Benzene Sulfonic Acid adheres to stringent in-process and final quality controls to ensure batch-to-batch consistency and purity. Each lot is analyzed against comprehensive specifications using modern analytical techniques such as HPLC, NMR, and titration. A Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment, ensuring full traceability and compliance with your quality assurance protocols.

Storage

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

Specification

Item	Specification
Appearance	Off-white to light brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%
Solubility (1% in Water)	Clear to slightly hazy solution

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