Description

3-Nitroaniline-4-Sulfonic Acid is a key aromatic sulfonic acid derivative, serving as a vital intermediate in the synthesis of complex organic molecules. Its primary value lies in its bifunctional nature, containing both a nitro group and a sulfonic acid group, which makes it a versatile building block for creating dyes, pigments, and other specialty chemicals. This compound is essential for manufacturers and R&D laboratories in the dyestuff, pharmaceutical, and agrochemical industries seeking to develop or produce high-performance colorants and active ingredients.

Application

• Dye and Pigment Intermediate: A crucial precursor in the synthesis of azo dyes, acid dyes, and other complex colorants, particularly for textiles and inks.
• Pharmaceutical Synthesis: Used as a building block in the research and development of active pharmaceutical ingredients (APIs) and other fine chemicals.
• Agrochemical Manufacturing: Serves as an intermediate in the production of certain herbicides, pesticides, and plant growth regulators.
• Chemical Research & Development: Employed in organic synthesis laboratories for creating novel sulfonated compounds and studying reaction mechanisms.
• Photographic Chemicals: Can be used in the formulation of certain specialty chemicals for photographic and imaging applications.
• Corrosion Inhibitor Formulation: Potential use as a component in formulations designed to prevent metal corrosion in industrial systems.

Basic Information

Product Name	3-Nitroaniline-4-Sulfonic Acid
CAS No.	712-24-3
Molecular Formula	C6H6N2O5S
Molecular Weight	218.19 g/mol
Synonyms	4-Amino-2-nitrobenzenesulfonic Acid; 2-Nitro-4-aminobenzenesulfonic Acid; 4-Sulfo-2-nitroaniline; 3-Nitro-4-aminobenzenesulfonic Acid; 4-Amino-3-nitrobenzenesulfonic Acid; 2-Nitroaniline-4-sulfonic Acid; 1-Amino-2-nitrobenzene-4-sulfonic Acid; C.I. 37100
EINECS	211-924-1

Quality Control

Our 3-Nitroaniline-4-Sulfonic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise chemical and physical specifications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee consistency and support your quality assurance protocols.

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). This product is hygroscopic (moisture-sensitive); therefore, the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	Yellow to brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%

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