Description

1,3-Naphthalenedisulfonic Acid, 7-Amino-, Monopotassium Salt, Monohydrate is a specialized organic salt derivative of naphthalene, valued for its dual sulfonic acid groups and amino functionality which make it a versatile intermediate and coupling agent. This compound is critical for synthesizing high-value dyes, pigments, and optical brighteners where precise molecular structure dictates color and performance properties. It is primarily sought by manufacturers in the dyestuff, textile chemical, and specialty chemical industries for producing vibrant and stable colorants.

Application

• Dye and Pigment Intermediate: A key building block for the synthesis of acid dyes, direct dyes, and reactive dyes used in textile coloring.
• Optical Brightener Production: Serves as a precursor in manufacturing fluorescent whitening agents (FWAs) for paper, detergents, and plastics.
• Chemical Synthesis: Utilized as a sulfonating agent or a charged intermediate in organic synthesis and pharmaceutical research.
• Analytical Reagent: May be employed in laboratory settings as a reagent or standard for specific chemical analyses.
• Specialty Surfactants: Potential use in creating anionic surfactants with specific dispersing or wetting properties.

Basic Information

Product Name	1,3-Naphthalenedisulfonic Acid, 7-Amino-, Monopotassium Salt, Monohydrate
CAS No.	303137-06-6
Molecular Formula	C₁₀H₈KNO₇S₂ · H₂O
Molecular Weight	Contact for details
Synonyms	7-Amino-1,3-naphthalenedisulfonic Acid Monopotassium Salt Monohydrate; 1,3-Naphthalenedisulfonic Acid, 7-Amino-, Potassium Salt (1:1), Monohydrate; 7-Amino-1,3-naphthalenedisulfonic Acid Potassium Salt Hydrate; Amino G Acid Potassium Salt; 7-Amino-1,3-NDSA Potassium Salt; Potassium 7-amino-1,3-naphthalenedisulfonate hydrate
EINECS	Contact for details

Quality Control

Our production of 1,3-Naphthalenedisulfonic Acid, 7-Amino-, Monopotassium Salt, Monohydrate adheres to stringent quality management protocols to ensure batch-to-batch consistency and reliability. Each lot is analyzed against established specifications for purity, identity, and impurity profiles. Certificates of Analysis (COA) documenting these results are available upon request to support your quality assurance and regulatory 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 sealed to prevent absorption of atmospheric moisture, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	Light yellow to brown powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	Contact for details
Heavy Metals	< 20 ppm
Solubility	Soluble in water

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