Description

3-Nitrobenzenesulfonic Acid Monohydrate, 95 is a versatile aromatic sulfonic acid derivative, serving as a key intermediate in fine chemical synthesis. Its value lies in providing a reactive nitro and sulfonic acid functional group pair, enabling precise chemical modifications for creating complex molecules. This product is essential for research and industrial chemists in the pharmaceutical, agrochemical, and dye manufacturing sectors who require a reliable building block for advanced synthesis.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of active pharmaceutical ingredients (APIs) and other bioactive compounds.
• Agrochemical Synthesis: Used in the production of herbicides, pesticides, and plant growth regulators.
• Dye and Pigment Manufacturing: Acts as an intermediate for synthesizing azo dyes and other colorants.
• Chemical Research & Development: Employed as a model compound or reagent in organic synthesis and process development.
• Corrosion Inhibitor Formulation: A component in specialty chemical blends designed to protect metal surfaces.
• Polymer Modification: Used to introduce sulfonic acid groups into polymers, altering their solubility and ionic properties.

Basic Information

Product Name	3-Nitrobenzenesulfonic Acid Monohydrate, 95
CAS No.	5337-19-9
Molecular Formula	C6H5NO5S · H2O
Molecular Weight	221.18 g/mol (Monohydrate)
Synonyms	3-Nitrobenzenesulfonic Acid Hydrate; m-Nitrobenzenesulfonic Acid Monohydrate; Benzenesulfonic acid, 3-nitro-, monohydrate; 3-Nitrobenzene-1-sulfonic acid monohydrate; 3-Nitrobenzenesulphonic Acid Monohydrate; m-Nitrobenzenesulphonic Acid; 3-NBSA Monohydrate
EINECS	226-273-1 (for the anhydrous acid)

Quality Control

Our 3-Nitrobenzenesulfonic Acid Monohydrate, 95 is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets the declared specifications for identity, purity, and composition. Certificates of Analysis (COA) detailing the results of these tests are provided to guarantee traceability and batch-to-batch consistency, supporting your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and reducing agents. Due to its nature as a strong acid/organic solvent and its propensity to be easily oxidized, it is recommended to store the product under an inert atmosphere for long-term stability. Keep container tightly sealed when not in use to minimize moisture absorption.

Specification

Item	Specification
Appearance	Yellow to brown crystalline powder
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 95.0%
Water Content (KF)	≈ 8.2% (Theoretical for monohydrate)
Related Substances (HPLC)	Reported on COA

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