Description

5-(Benzoylamino)-4-Hydroxy-3-(4-Methyl-2-Sulfophenylazo)-2,7-Naphthalenedisulfonic Acid Trisodium Salt is a high-purity, water-soluble azo dye intermediate and analytical reagent. This compound is valued for its strong chromophoric properties and ability to form stable complexes with various metal ions, making it a critical component in specialized colorant synthesis and chemical analysis. It is primarily sought by manufacturers and research laboratories in the dyes and pigments, analytical chemistry, and specialty chemical synthesis sectors.

Application

• Key Intermediate for Azo Dyes: Serves as a crucial precursor in the synthesis of high-performance, water-soluble azo dyes for textiles, inks, and coatings.
• Analytical Reagent: Used as a complexometric indicator or a chromogenic agent in spectrophotometric analysis and metal ion detection.
• Specialty Pigment Manufacturing: Employed in the production of specialized pigments requiring specific solubility and color fastness properties.
• Research & Development: Utilized in chemical research for developing new colorants, sensors, and functional materials.
• Biological Staining: Potential application in histological staining due to its affinity for specific tissue components.
• Photographic Chemicals: Can be used in the formulation of certain light-sensitive photographic chemicals.

Basic Information

Product Name	5-(Benzoylamino)-4-Hydroxy-3-(4-Methyl-2-Sulfophenylazo)-2,7-Naphthalenedisulfonic Acid Trisodium Salt
CAS No.	92408-46-3
Molecular Formula	C24H16N3Na3O11S3
Molecular Weight	719.57 g/mol
Synonyms	Acid Red 337 (C.I. 17200); Trisodium 5-benzamido-4-hydroxy-3-[(4-methyl-2-sulfophenyl)azo]naphthalene-2,7-disulfonate; Benzenesulfonic acid, 2-[[5-(benzoylamino)-4-hydroxy-2,7-disulfo-3-naphthalenyl]azo]-5-methyl-, trisodium salt; C.I. 17200; Azo dye intermediate 92408-46-3; 3-[(4-Methyl-2-sulfophenyl)azo]-4-hydroxy-5-(phenylcarbonylamino)-2,7-naphthalenedisulfonic acid trisodium salt
EINECS	Contact for details

Quality Control

Our production of 5-(Benzoylamino)-4-Hydroxy-3-(4-Methyl-2-Sulfophenylazo)-2,7-Naphthalenedisulfonic Acid Trisodium Salt adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity, spectrophotometry for color value, and elemental analysis, to ensure consistency and compliance with customer specifications. Certificates of Analysis (COA) detailing all test results are provided with each shipment.

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 sealed when not in use to prevent absorption of atmospheric moisture, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Color Value	Contact for details
Water Content (KF)	≤ 5.0%
Solubility (in Water)	Clear solution
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	Contact for details

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