Description

4-Nitro-2-Sulfobenzoic Acid is a key aromatic sulfonic acid derivative, serving as a versatile intermediate in the synthesis of more complex organic molecules. Its value lies in the strategic positioning of its nitro and sulfonic acid functional groups, which enable a range of chemical transformations, including coupling reactions and the formation of dyes and pigments. This compound is essential for manufacturers and R&D laboratories in the fine chemical, pharmaceutical, and specialty dye industries seeking to develop advanced materials and active ingredients.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and diagnostic agents.
• Dye and Pigment Manufacturing: Serves as a crucial precursor for the production of azo dyes, sulfonated dyes, and other colorants.
• Chemical Research & Development: Employed as a building block in organic synthesis for creating novel compounds with specific functional properties.
• Liquid Crystal & Electronic Materials: Acts as an intermediate in the production of specialty chemicals for advanced material science applications.
• Corrosion Inhibitor Formulation: Utilized in the development of specialty chemical additives for industrial processes.
• Photographic Chemical: Can be used in the synthesis of chemicals for photographic and imaging technologies.

Basic Information

Product Name	4-Nitro-2-Sulfobenzoic Acid
CAS No.	22952-26-7
Molecular Formula	C7H5NO7S
Molecular Weight	247.18 g/mol
Synonyms	2-Sulfo-4-nitrobenzoic Acid; Benzoic acid, 4-nitro-2-sulfo-; 4-Nitro-2-sulfobenzoic acid; 4-Nitrosalicylic acid-2-sulfonic acid; 2-Carboxy-5-nitrobenzenesulfonic acid; 5-Nitro-2-sulfobenzoic acid; NSC 403124
EINECS	Contact for details

Quality Control

Our 4-Nitro-2-Sulfobenzoic Acid is manufactured under a stringent quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting specifications for use in sensitive applications. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to beige crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.1%

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