Description

5-[[5-Chloro-6-Methyl-2-(Methylsulfonyl)-4-Pyrimidinyl]Amino]-4-Hydroxy-3-[(1-Sulfo-2-Naphthalenyl)Azo]-2,7-Naphthalenedisulfonic Acid Trisodium Salt is a high-purity, synthetic organic dye intermediate and specialty chemical. This compound is valued for its precise molecular structure, which imparts specific chromophoric and functional properties critical for advanced applications. It is primarily utilized by manufacturers in the dye and pigment, analytical reagent, and specialty chemical synthesis industries.

Application

• Dye and Pigment Intermediate: A key precursor for the synthesis of high-performance azo dyes and pigments, particularly for textiles, inks, and specialty coatings.
• Analytical Chemistry Reagent: Used as a complexometric indicator or a chromogenic agent in spectrophotometric analysis and diagnostic kits.
• Biochemical Research: Potential application as a staining agent or a fluorescent probe in histology and cellular imaging studies.
• Specialty Chemical Synthesis: Serves as a building block for creating more complex sulfonated and azo-functionalized compounds for niche industrial applications.
• Photographic Industry: Can be employed in the formulation of light-sensitive layers for specialized photographic films and papers.

Basic Information

Product Name	5-[[5-Chloro-6-Methyl-2-(Methylsulfonyl)-4-Pyrimidinyl]Amino]-4-Hydroxy-3-[(1-Sulfo-2-Naphthalenyl)Azo]-2,7-Naphthalenedisulfonic Acid Trisodium Salt
CAS No.	72894-26-9
Molecular Formula	C26H17ClN6Na3O13S4
Molecular Weight	~ 887.1 g/mol (as trisodium salt)
Synonyms	Trisodium 5-[(5-chloro-6-methyl-2-methylsulfonylpyrimidin-4-yl)amino]-4-hydroxy-3-[(1-sulphonaphthalen-2-yl)diazenyl]naphthalene-2,7-disulphonate; C.I. Acid Orange 156; Azo dye intermediate 72894-26-9; 5-((5-Chloro-6-methyl-2-(methylsulfonyl)pyrimidin-4-yl)amino)-4-hydroxy-3-((1-sulfo-2-naphthyl)azo)naphthalene-2,7-disulfonic acid trisodium salt; Reactive Orange Dye Intermediate; Acid Orange 156 trisodium salt
EINECS	Contact for details

Quality Control

Our production of 5-[[5-Chloro-6-Methyl-2-(Methylsulfonyl)-4-Pyrimidinyl]Amino]-4-Hydroxy-3-[(1-Sulfo-2-Naphthalenyl)Azo]-2,7-Naphthalenedisulfonic Acid Trisodium Salt adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure consistent performance and specification compliance. Certificates of Analysis (COA) detailing all critical parameters 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). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality and stability.

Specification

Item	Specification
Appearance	Dark red to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines

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