Description

6-Amino-5-[[4-(2-Phenylvinyl)-3-Sulphophenyl]Azo]Naphthalene-2-Sulphonic Acid is a specialized azo dye intermediate known for its complex molecular structure, which imparts valuable chromophoric properties. This compound is critical for synthesizing high-performance dyes and pigments with excellent color fastness and specific application characteristics. It is primarily required by manufacturers in the textile, ink, and specialty chemical industries seeking to produce vibrant and durable colorants.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of complex, high-value azo dyes for textiles and leather.
• Pigment Manufacturing: Used in the production of organic pigments for inks, coatings, and plastics, where color stability is paramount.
• Specialty Colorants: Employed in the formulation of specialized dyes for technical applications, including imaging and optical filters.
• Research & Development: Utilized in chemical research for developing new chromophores and studying structure-property relationships in dye chemistry.

Basic Information

Product Name	6-Amino-5-[[4-(2-Phenylvinyl)-3-Sulphophenyl]Azo]Naphthalene-2-Sulphonic Acid
CAS No.	85895-94-9
Molecular Formula	C24H19N3O6S2
Molecular Weight	509.55 g/mol
Synonyms	6-Amino-5-[(4-(2-phenylethenyl)-3-sulfophenyl)azo]-2-naphthalenesulfonic acid; Acid Yellow 219; C.I. 27790; 2-Naphthalenesulfonic acid, 6-amino-5-[[4-(2-phenylethenyl)-3-sulfophenyl]azo]-; 5-[[4-(2-Phenylethenyl)-3-sulfophenyl]azo]-6-amino-2-naphthalenesulfonic acid; Azo dye intermediate 85895-94-9; 6-Amino-5-((4-styryl-3-sulfophenyl)azo)naphthalene-2-sulfonic acid
EINECS	Contact for details

Quality Control

Our production of 6-Amino-5-[[4-(2-Phenylvinyl)-3-Sulphophenyl]Azo]Naphthalene-2-Sulphonic Acid adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency meet the high standards required for dye and pigment synthesis. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting key parameters such as assay, impurity profile, and physical characteristics.

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). Keep away from strong oxidizing agents and incompatible materials. Due to its complex organic structure, prolonged exposure to elevated temperatures or humidity should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Brown to dark brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 3.0%

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