Description

4-Amino-5-(Ethylsulfonyl)-2-Methoxybenzoic (Propyl Carbonic) Anhydride is a high-purity, specialized anhydride building block designed for advanced chemical synthesis. This compound is valued for its unique bifunctional reactivity, serving as a critical precursor in the development of complex organic molecules. It is primarily sought by R&D and production teams in the pharmaceutical, agrochemical, and advanced material sectors for constructing novel active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel small-molecule drug candidates, particularly in kinase inhibitor and anti-inflammatory research.
• Agrochemical Synthesis: Used in the production of advanced herbicides and fungicides, leveraging its reactive anhydride and amino groups.
• Polymer Chemistry: Serves as a monomer or cross-linking agent for creating specialty polyamides, polyimides, and other high-performance polymers.
• Dye and Pigment Manufacturing: Intermediate in the synthesis of complex azo dyes and high-stability organic pigments.
• Liquid Crystal & OLED Materials: A precursor for electron-transport materials and other functional components in electronic displays.
• Bioconjugation Reagent: Utilized in proteomics and antibody-drug conjugate (ADC) development for site-specific protein labeling.

Basic Information

Product Name	4-Amino-5-(Ethylsulfonyl)-2-Methoxybenzoic (Propyl Carbonic) Anhydride
CAS No.	1823413-49-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	4-Amino-5-(ethylsulfonyl)-2-methoxybenzoic acid propyl carbonic anhydride; 2-Methoxy-4-amino-5-ethylsulfonylbenzoic acid propyl carbonic anhydride; 4-Amino-2-methoxy-5-(ethylsulfonyl)benzoic acid mixed anhydride with propyl carbonic acid; Propyl carbonic 4-amino-5-ethylsulfonyl-2-methoxybenzoic anhydride; 1823413-49-5; AS-9244; A5E2MBA-PCA
EINECS	Contact for details

Quality Control

Our 4-Amino-5-(Ethylsulfonyl)-2-Methoxybenzoic (Propyl Carbonic) Anhydride is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent moisture absorption and decomposition.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Single Unknown Impurity (HPLC)	≤ 0.5%

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