Description

1-Nitronaphthalene-7-Sulfonic Acid is a key aromatic sulfonic acid derivative, serving as a versatile intermediate in the synthesis of complex organic molecules. Its value lies in the strategic positioning of its nitro and sulfonic acid functional groups, which enable precise chemical modifications for creating dyes, pigments, and other specialty chemicals. This compound is essential for manufacturers and R&D laboratories in the dyestuff, pharmaceutical, and agrochemical sectors seeking to develop high-performance products.

Application

• Dye and Pigment Intermediate: A crucial precursor in the synthesis of azo dyes, acid dyes, and other complex colorants, contributing to color fastness and hue.
• Pharmaceutical Synthesis: Used as a building block for creating sulfonamide-based active pharmaceutical ingredients (APIs) and other pharmacologically active compounds.
• Agrochemical Production: Serves as an intermediate in the manufacture of certain herbicides, fungicides, and plant growth regulators.
• Chemical Research & Development: Employed in organic synthesis for introducing sulfonic acid groups into naphthalene systems, facilitating further functionalization.
• Corrosion Inhibitor Formulation: Can be utilized in the development of specialty chemicals for metal surface treatment and protection.
• Photographic Chemical: Finds application in the synthesis of certain chemicals used in photographic development processes.

Basic Information

Product Name	1-Nitronaphthalene-7-Sulfonic Acid
CAS No.	18425-74-6
Molecular Formula	C₁₀H₇NO₅S
Molecular Weight	253.23 g/mol
Synonyms	7-Nitro-1-naphthalenesulfonic Acid; 1-Nitronaphthalene-7-sulphonic Acid; 7-Nitronaphthalene-1-sulfonic Acid; Naphthalene-7-sulfonic acid, 1-nitro-; 1-Nitro-7-naphthalenesulfonic Acid; 7-Nitro-1-naphthalenesulphonic Acid; 1-Nitronaphthalenesulfonic Acid (7-isomer); 7-Nitronaphthalenesulfonic Acid
EINECS	242-307-4

Quality Control

Our 1-Nitronaphthalene-7-Sulfonic Acid is produced under stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting standards for industrial and research applications. Certificates of Analysis (COA) detailing all specifications 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, well-ventilated area away from incompatible materials such as strong bases and reducing agents. Recommended storage temperature is between 15°C and 25°C. The product may be hygroscopic (moisture-sensitive).

Specification

Item	Specification
Appearance	Light yellow to brown powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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