Description

3-Nitrobenzenesulfonic Acid is a versatile aromatic sulfonic acid derivative, primarily valued as a key synthetic intermediate in the production of dyes, pigments, and other fine chemicals. Its nitro and sulfonic acid functional groups make it a crucial building block for introducing specific chemical properties into target molecules. This compound is essential for manufacturers in the dyestuff, pharmaceutical, and agrochemical industries seeking reliable, high-purity intermediates for complex synthesis.

Application

• Dye and Pigment Manufacturing: Serves as a critical intermediate in the synthesis of azo dyes, acid dyes, and other colorants.
• Pharmaceutical Intermediates: Used in the synthesis of various active pharmaceutical ingredients (APIs) and specialty chemicals.
• Agrochemical Synthesis: Acts as a precursor in the production of certain herbicides, pesticides, and plant growth regulators.
• Chemical Research & Development: Employed as a reagent and building block in organic synthesis for novel compound development.
• Corrosion Inhibitor Formulations: Used in certain industrial formulations to protect metal surfaces.
• Electroplating Additives: Functions as a brightening agent or additive in specific electroplating baths.

Basic Information

Product Name	3-Nitrobenzenesulfonic Acid
CAS No.	98-47-5
Molecular Formula	C6H5NO5S
Molecular Weight	203.17 g/mol
Synonyms	m-Nitrobenzenesulfonic Acid; 3-Nitrobenzenesulphonic Acid; Benzenesulfonic acid, 3-nitro-; Metanilic acid, 3-nitro-; NSC 4032; 3-NBSA; 3-Nitrobenzene-1-sulfonic acid
EINECS	202-671-6

Quality Control

Our 3-Nitrobenzenesulfonic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets defined specifications for purity, identity, and impurity profiles. A comprehensive Certificate of Analysis (COA) is provided with every shipment, detailing results for assay, moisture content, and other critical parameters. We are committed to supplying material that meets the high standards required for industrial and fine chemical synthesis.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be kept away from moisture and incompatible materials such as strong bases and reducing agents.

Specification

Item	Specification
Appearance	Yellow to brown crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Melting Point	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Sulfated Ash	≤ 0.1%

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