Description

3-[(4-Amino-5-Methoxy-o-Tolyl)Azo]Naphthalene-1,5-Disulphonic Acid, Lithium Sodium Salt is a high-purity, water-soluble azo dye intermediate of significant commercial importance. Its core value lies in its role as a critical precursor for synthesizing specialized dyes and pigments, offering excellent color strength and stability. This compound is essential for manufacturers in the textile, ink, and specialty chemical industries seeking to produce high-performance colorants.

Application

• Primary intermediate for the synthesis of azo dyes and pigments used in textile coloration.
• Key raw material in the production of specialty inks, including those for packaging and security printing.
• Used in the formulation of colorants for plastics and polymers to achieve specific hues and lightfastness.
• Precursor for biological stains and histochemical dyes used in laboratory and diagnostic applications.
• Intermediate in the manufacture of functional dyes for applications in electronics and optics.
• Research and development of novel chromogenic compounds in academic and industrial settings.

Basic Information

Product Name	3-[(4-Amino-5-Methoxy-o-Tolyl)Azo]Naphthalene-1,5-Disulphonic Acid, Lithium Sodium Salt
CAS No.	75198-80-0
Molecular Formula	C18H15LiN4NaO7S2
Molecular Weight	476.41 g/mol (approx.)
Synonyms	Lithium Sodium 3-[(4-Amino-5-methoxy-2-methylphenyl)azo]naphthalene-1,5-disulfonate; 1,5-Naphthalenedisulfonic acid, 3-[(4-amino-5-methoxy-2-methylphenyl)azo]-, lithium sodium salt; C.I. 37155; Acid Red 249 (Lithium Sodium Salt); Azo dye intermediate 75198-80-0; 4-Amino-5-methoxy-o-tolylazo-1,5-naphthalenedisulfonic acid lithium sodium salt
EINECS	Contact for details

Quality Control

Our production of 3-[(4-Amino-5-Methoxy-o-Tolyl)Azo]Naphthalene-1,5-Disulphonic Acid, Lithium Sodium Salt adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing to ensure consistent purity, color value, and performance characteristics. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical specifications is provided with each shipment to guarantee compliance with your technical 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); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark red to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Freely soluble

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