Description

Diammonium Hydrogen 7-Aminonaphthalene-1,3,6-Trisulphonate is a high-purity, water-soluble aromatic sulfonate salt. This compound serves as a critical intermediate and functional additive, valued for its ability to impart specific chemical and physical properties in advanced formulations. It is essential for manufacturers and researchers in the dye, pharmaceutical, and specialty chemical industries seeking reliable performance and consistent quality.

Application

• Dye and Pigment Intermediate: A key precursor in the synthesis of acid dyes, reactive dyes, and fluorescent brightening agents.
• Pharmaceutical Synthesis: Used as a building block for active pharmaceutical ingredients (APIs) and diagnostic agents.
• Analytical Chemistry: Functions as a reagent or standard in chromatographic analysis and biochemical assays.
• Electroplating Additive: Acts as a brightener or leveling agent in metal finishing baths.
• Concrete Admixture: Employed as a component in formulations to control setting time and improve workability.
• Research & Development: Serves as a versatile starting material for novel compound synthesis in academic and industrial R&D.

Basic Information

Product Name	Diammonium Hydrogen 7-Aminonaphthalene-1,3,6-Trisulphonate
CAS No.	70714-69-1
Molecular Formula	C10H15N3O9S3
Molecular Weight	425.43 g/mol
Synonyms	7-Amino-1,3,6-naphthalenetrisulfonic acid, diammonium salt; 1,3,6-Naphthalenetrisulfonic acid, 7-amino-, diammonium salt; Diammonium 7-aminonaphthalene-1,3,6-trisulfonate; Acid Yellow 23 intermediate; Naphthol trisulfonate ammonium salt; 7-AHNT diammonium salt; C.I. 19140 intermediate
EINECS	Contact for details

Quality Control

Our Diammonium Hydrogen 7-Aminonaphthalene-1,3,6-Trisulphonate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting specifications. Certificates of Analysis (COA) documenting all critical parameters 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, well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to brownish-yellow powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
pH (1% Solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 20 ppm
Solubility	Freely soluble in water

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