Description

4-Hydroxy-3-[[4-[(1-Oxoallyl)Amino]-3-Sulphophenyl]Azo]Naphthalene-1-Sulphonic Acid, Potassium Sodium Salt is a high-purity, water-soluble azo dye intermediate. This compound is valued for its precise chemical structure, which is critical for producing consistent and vibrant colorants. It is primarily required by manufacturers in the dye and pigment, textile, and specialty chemical industries for synthesizing high-performance dyes and functional colorants.

Application

• Primary Intermediate for Reactive Dyes: A key building block in the synthesis of reactive dyes for cotton and other cellulosic fibers.
• Textile Colorant Production: Used in manufacturing dyes for the textile industry, offering good wash and light fastness properties.
• Specialty Pigment Synthesis: Employed in the production of high-value, complex organic pigments for inks and coatings.
• Laboratory and R&D: Serves as a reference standard and starting material for research into new chromophores and dye applications.
• Functional Dye Manufacturing: Potential use in creating dyes for non-textile applications, such as in paper or leather.

Basic Information

Item	Detail
Product Name	4-Hydroxy-3-[[4-[(1-Oxoallyl)Amino]-3-Sulphophenyl]Azo]Naphthalene-1-Sulphonic Acid, Potassium Sodium Salt
CAS No.	85959-02-0
Molecular Formula	C19H13KN3NaO8S2
Molecular Weight	545.54 g/mol
Synonyms	Potassium sodium 4-hydroxy-3-{[4-(3-oxobut-1-enylamino)-3-sulfophenyl]diazenyl}naphthalene-1-sulfonate; C.I. Reactive Orange 78; Reactive Orange 78; 4-Hydroxy-3-((4-(3-oxobut-1-enylamino)-3-sulfophenyl)diazenyl)naphthalene-1-sulfonic acid potassium sodium salt; 1,5-Naphthalenedisulfonic acid, 4-hydroxy-3-((4-((1-oxo-2-propen-1-yl)amino)-3-sulfophenyl)azo)-, potassium sodium salt; Reactive Orange K-7R (trade name variant); Azo dye intermediate 85959-02-0
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality control protocols to ensure batch-to-batch consistency and high chemical purity. Every lot is tested against established specifications, and a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is available upon request. We support compliance with global supply chain standards.

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 tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Orange to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Solubility (in Water)	Clear solution
Heavy Metals (as Pb)	≤ 20 ppm

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