Description

Disodium 5-[[4-[(2-Bromo-1-Oxoallyl)Amino]-2-Sulphonatophenyl]Azo]-4-Hydroxy-6-(Methylamino)Naphthalene-2-Sulphonate is a high-purity, water-soluble azo dye intermediate characterized by its complex, functionalized molecular structure. This compound is valued for its role as a key precursor in the synthesis of specialized reactive dyes and pigments, offering excellent color fastness and binding properties. It is primarily sought by manufacturers in the textile, leather, and specialty ink industries for producing vibrant and durable colorants. CAS No. 70210-39-8.

Application

• Reactive Dye Synthesis: A critical intermediate for manufacturing high-performance reactive dyes used in cotton and cellulose fiber dyeing.
• Textile Printing: Used in formulations for textile printing inks, providing bright shades and good wash-fastness.
• Leather Coloring: Employed in the production of dyes for leather finishing, ensuring deep, uniform coloration.
• Specialty Ink Production: Serves as a colorant component in inks for digital textile printing and other niche applications.
• Research & Development: Utilized in chemical R&D for developing novel chromophores and studying azo dye chemistry.
• Paper Dyeing: Potential use in the manufacture of dyes for high-quality paper and packaging materials.

Basic Information

Product Name	Disodium 5-[[4-[(2-Bromo-1-Oxoallyl)Amino]-2-Sulphonatophenyl]Azo]-4-Hydroxy-6-(Methylamino)Naphthalene-2-Sulphonate
CAS No.	70210-39-8
Molecular Formula	C20H15BrN4Na2O9S2
Molecular Weight	637.37 g/mol
Synonyms	5-[[4-[(2-Bromo-1-oxoallyl)amino]-2-sulfonatophenyl]azo]-4-hydroxy-6-(methylamino)-2-naphthalenesulfonic acid disodium salt; C.I. Reactive Orange 16 intermediate; Disodium 4-hydroxy-6-(methylamino)-5-[[4-[(2-bromoacryloyl)amino]-2-sulfophenyl]azo]-2-naphthalenesulfonate; Reactive Dye Intermediate 70210-39-8; 2-Naphthalenesulfonic acid, 5-[[4-[(2-bromo-1-oxo-2-propen-1-yl)amino]-2-sulfophenyl]azo]-4-hydroxy-6-(methylamino)-, disodium salt; Azo dye intermediate CAS 70210-39-8; Bromoacryloyl amino azo naphthalene sulfonate
EINECS	Contact for details

Quality Control

Our production of Disodium 5-[[4-[(2-Bromo-1-Oxoallyl)Amino]-2-Sulphonatophenyl]Azo]-4-Hydroxy-6-(Methylamino)Naphthalene-2-Sulphonate adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and meet the exacting standards of the dye manufacturing industry. Certificates of Analysis (COA) detailing all specifications are provided and can be tailored to meet specific customer requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and 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 when not in use to prevent absorption of atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Reddish-brown to dark brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Clear solution

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