Description

Pyridine Sulfate is a versatile and reactive salt formed from pyridine and sulfuric acid, serving as a crucial intermediate and reagent in advanced chemical synthesis. Its value lies in its dual functionality, acting as both a source of pyridine and a mild acid catalyst or sulfonating agent in controlled reactions. This compound is essential for manufacturers and R&D laboratories in the pharmaceutical, agrochemical, and specialty chemical industries seeking reliable, high-purity building blocks for complex molecule creation.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for drugs containing pyridine or sulfonamide moieties.
• Catalyst & Reagent: Used as a mild acid catalyst in organic synthesis and as a sulfonating agent for introducing sulfate groups into target molecules.
• Agrochemical Synthesis: Intermediate in the production of herbicides, fungicides, and other crop protection agents.
• Chemical Research: A valuable reagent in laboratory-scale research for developing new synthetic methodologies and compounds.
• Dye & Pigment Manufacturing: Employed in the synthesis of certain complex dyes and organic pigments.
• Corrosion Inhibitor Formulation: Component in specialty formulations designed to protect metals in industrial processes.

Basic Information

Product Name	Pyridine Sulfate
CAS No.	543-54-4
Molecular Formula	C5H5N · H2SO4 or C5H7NO4S
Molecular Weight	177.18 g/mol
Synonyms	Pyridinium sulfate; Pyridine bisulfate; Pyridine sulfuric acid salt; Pyridine, sulfate (1:1); Sulfuric acid, compd. with pyridine (1:1); Pyridine hydrogen sulfate; Pyridinium hydrogen sulfate
EINECS	208-856-3

Quality Control

Our Pyridine Sulfate is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including assay, identification, and impurity profiling via techniques such as HPLC and titration. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee compliance with your specifications and industry standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent degradation. Keep away from strong bases and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or lumps
Identification (IR)	Conforms to standard
Assay (Titration)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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