Description

Thionitrobenzoic Acid CAS NO 15139-21-6 is a specialized organic sulfur-nitrogen compound that serves as a critical intermediate in advanced chemical synthesis. Its unique structure, featuring both nitro and thioacid functional groups, makes it a valuable precursor for constructing complex molecules in pharmaceutical and agrochemical research. This high-purity intermediate is essential for R&D chemists and process development scientists working on novel active ingredients, dyes, and functional materials.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates, particularly those containing sulfur-based pharmacophores.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and plant growth regulators.
• Dye and Pigment Manufacturing: Serves as a precursor for synthesizing specialized azo dyes and sulfur-containing colorants.
• Chemical Research & Development: A versatile reagent for exploring new organic reactions and constructing heterocyclic compounds in academic and industrial labs.
• Material Science: Investigated as a monomer or modifying agent for creating polymers with specific electronic or adhesive properties.
• Analytical Chemistry: Can be used as a derivatization agent or a standard in chromatographic analysis for sulfur-containing compounds.

Basic Information

Product Name	Thionitrobenzoic Acid
CAS No.	15139-21-6
Molecular Formula	C7H5NO4S
Molecular Weight	199.18 g/mol
Synonyms	4-Nitrobenzenecarbothioic S-Acid; 4-Nitrothiophenolcarboxylic Acid; 4-Nitrobenzenecarbothioic Acid; p-Nitrothiophenolcarboxylic Acid; 4-Nitrobenzenecarbothioic S-Acid; 4-Carbothioylnitrobenzene; p-Nitrothiobenzoic Acid; TNBA
EINECS	Contact for details

Quality Control

Our Thionitrobenzoic Acid is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR spectroscopy, to ensure it meets the stringent requirements of research and process chemistry. Certificates of Analysis (COA) detailing batch-specific results are provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its chemical nature, it should be stored separately from strong oxidizing agents and strong bases.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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