Description

Metanilic Acid Sodium Salt is the sodium salt derivative of metanilic acid, a key sulfonated aromatic compound. This product is valued for its role as a versatile intermediate and coupling agent in the synthesis of azo dyes and pigments. It is essential for manufacturers in the dye and pigment, pharmaceutical, and chemical research industries seeking reliable and consistent raw materials for complex syntheses.

Application

• Primary Intermediate for Azo Dyes & Pigments: Serves as a crucial diazo component in the production of acid dyes, direct dyes, and pigments for textiles, leather, and paper.
• Pharmaceutical Synthesis: Used as a building block or sulfonation agent in the manufacture of certain active pharmaceutical ingredients (APIs) and diagnostic agents.
• Chemical Research & Development: Employed as a standard or reagent in organic synthesis laboratories for developing new sulfonated compounds.
• Photographic Chemicals: Can be utilized in the synthesis of certain chemicals used in photographic development processes.

Basic Information

Product Name	Metanilic Acid Sodium Salt
CAS No.	1126-34-7
Molecular Formula	C7H6NNaO3S
Molecular Weight	207.18 g/mol
Synonyms	Sodium 3-Aminobenzenesulfonate; Sodium Metanilate; Metanilic Acid Sodium Salt; 3-Aminobenzenesulfonic Acid Sodium Salt; Aniline-3-sulfonic Acid Sodium Salt; Sodium Aniline-m-sulfonate; Metanilsäure Natriumsalz; M-aminobenzenesulfonic acid sodium salt
EINECS	214-413-5

Quality Control

Our Metanilic Acid Sodium Salt is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise chemical and physical specifications. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is available for every shipment to guarantee traceability and compliance with your project requirements.

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Water Content (Karl Fischer)	≤ 1.5%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition (Sulfated Ash)	≤ 0.5%

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