Description

2-[(Ethoxycarbonyl)Methylamino]-5-Methoxy-4-[(4-Methylphenyl)Thio]Benzenediazonium Hydrogen Sulphate is a specialized diazonium salt intermediate of significant commercial importance in advanced organic synthesis. This compound matters for its role as a precise coupling agent, enabling the formation of critical azo bonds and complex molecular architectures. It is primarily needed by manufacturers in the pharmaceutical and specialty dye industries for the production of active pharmaceutical ingredients (APIs) and high-performance colorants.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of complex drug molecules, particularly those requiring azo or diazo functional groups.
• Specialty Dye & Pigment Production: Used as a diazo component for manufacturing high-value azo dyes and pigments with specific color fastness and stability properties.
• Liquid Crystal & OLED Material Synthesis: Serves as a building block in the creation of advanced electronic and display materials.
• Photoinitiator & Photoresist Chemistry: Employed in formulations for UV-curable coatings, inks, and semiconductor photoresists due to its light-sensitive diazonium group.
• Agrochemical Synthesis: Intermediate in the production of certain herbicides and pesticides with targeted activity.
• Research & Development: Valuable reagent for academic and industrial R&D in organic chemistry and material science.

Basic Information

Product Name	2-[(Ethoxycarbonyl)Methylamino]-5-Methoxy-4-[(4-Methylphenyl)Thio]Benzenediazonium Hydrogen Sulphate
CAS No.	86808-51-7
Molecular Formula	C18H21N3O5S2
Molecular Weight	423.50 g/mol
Synonyms	5-Methoxy-4-[(4-methylphenyl)thio]-2-[(ethoxycarbonyl)methylamino]benzenediazonium hydrogen sulfate; 2-(N-Ethoxycarbonylmethylamino)-5-methoxy-4-(p-tolylthio)benzenediazonium Hydrogen Sulfate; Fast Blue B Salt (related variant); Diazo Component; p-Tolylthio Aniline Derivative Diazonium Salt; Benzenediazonium, 2-[(ethoxycarbonyl)methylamino]-5-methoxy-4-[(4-methylphenyl)thio]-, sulfate (1:1); Azo Coupling Agent Intermediate
EINECS	Contact for details

Quality Control

Our production of this diazonium salt intermediate adheres to strict quality protocols to ensure batch-to-batch consistency and reliability for sensitive synthesis processes. Quality is verified through comprehensive analytical methods including HPLC, NMR, and titration to confirm identity, purity, and assay. A Certificate of Analysis (COA) detailing all specifications is provided with each shipment. We operate under a quality management system aligned with cGMP principles where applicable for pharmaceutical-grade material.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept tightly sealed and opened under dry, inert conditions when possible to prevent decomposition. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Solubility	Soluble in polar aprotic solvents (e.g., DMF, DMSO)

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