Description

4-[[4-(5-Chloro-2-Fluoro-6-Methyl-4-Pyrimidinylamino)-2-Ureidophenyl]Azo]-1,3-Benzenedisulfonic Acid Disodium Salt is a high-purity, specialized azo dye intermediate with a complex heterocyclic structure. This compound is critical for synthesizing advanced colorants and functional dyes with specific light-fastness and chromophoric properties. It is primarily required by manufacturers in the fine chemical, specialty dye, and advanced materials sectors for research and production.

Application

• Primary Intermediate for the synthesis of high-performance azo dyes and pigments.
• Research Chemical in the development of novel functional dyes for optical applications and sensors.
• Specialty Colorant Production for inks, coatings, and plastics requiring specific color stability.
• Biochemical Research as a potential staining agent or probe due to its azo and sulfonic acid groups.
• Pharmaceutical Intermediate exploration for drug discovery programs targeting specific biological pathways.

Basic Information

Item	Details
Product Name	4-[[4-(5-Chloro-2-Fluoro-6-Methyl-4-Pyrimidinylamino)-2-Ureidophenyl]Azo]-1,3-Benzenedisulfonic Acid Disodium Salt
CAS No.	86918-45-8
Molecular Formula	C18H13ClFN7Na2O7S2
Molecular Weight	627.90 g/mol (Contact for exact details)
Synonyms	Acid Red 4B (related class); 1,3-Benzenedisulfonic acid, 4-[[4-[(5-chloro-2-fluoro-6-methyl-4-pyrimidinyl)amino]-2-ureidophenyl]azo]-, disodium salt; Disodium 4-[[4-(5-chloro-2-fluoro-6-methylpyrimidin-4-ylamino)-2-ureidophenyl]azo]benzene-1,3-disulfonate; Azo dye intermediate 86918-45-8; CI 18055 (potential related index); Special Red Dye Intermediate; Pyrimidine-based azo dye salt
EINECS	Contact for details

Quality Control

Our production of 4-[[4-(5-Chloro-2-Fluoro-6-Methyl-4-Pyrimidinylamino)-2-Ureidophenyl]Azo]-1,3-Benzenedisulfonic Acid Disodium Salt adheres to stringent in-process controls to ensure batch-to-batch consistency and high purity. Every lot is analyzed using advanced techniques like HPLC and NMR to confirm identity and purity. Certificates of Analysis (COA) detailing all specifications are provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which may affect stability and handling properties.

Specification

Item	Specification
Appearance	Reddish-brown to dark brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0% (Contact for higher grades)
Loss on Drying	≤ 2.0%
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.