Description

Benzoic Acid, 4-Amino-, Radical Ion(1+) (9Ci) is a specialized cationic radical derivative of 4-aminobenzoic acid. This compound is significant for its unique electronic and reactive properties, making it a valuable intermediate in advanced chemical synthesis and materials research. It is primarily needed by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries for developing novel active ingredients and functional materials.

Application

• As a key advanced synthetic intermediate in pharmaceutical research for novel drug candidates.
• Utilized in the development of specialty polymers and functional materials requiring specific redox or charge-transfer properties.
• As a research chemical in academic and industrial laboratories studying radical chemistry and reaction mechanisms.
• Potential use in the synthesis of photoinitiators or dyes for specialized applications.
• As a building block for agrochemical research, exploring new active ingredients with unique modes of action.

Basic Information

Product Name	Benzoic Acid, 4-Amino-, Radical Ion(1+) (9Ci)
CAS No.	159246-81-8
Molecular Formula	C7H7NO2•+
Molecular Weight	137.14 g/mol (radical cation)
Synonyms	4-Aminobenzoic Acid Radical Cation; p-Aminobenzoic Acid Radical Ion(1+); 4-Carboxyanilinium Radical; CAB Radical Cation; 4-Aminobenzoate Radical Cation; PABA Radical Cation; (4-Aminophenyl)carboxylic Acid Radical Ion
EINECS	Contact for details

Quality Control

Our production of this advanced intermediate adheres to strict quality management systems. Each batch is characterized using advanced analytical techniques including HPLC, NMR, and mass spectrometry to confirm identity, purity, and radical integrity. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment to ensure traceability and support your research and development processes.

Storage

Preserve in a tightly closed container, protected from light. Due to its light-sensitive and easily oxidized nature, long-term storage is recommended under an inert atmosphere (e.g., nitrogen or argon) at controlled room temperature (15-25°C).

Specification

Item	Specification
Appearance	Solid (Color to be specified per batch)
Identification (IR / NMR)	Conforms to structure
Purity (HPLC)	≥ 95% (Typical 97-99%)
Radical Content (ESR)	Reported per COA
Residual Solvents (GC)	Meets ICH guidelines

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