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4-Hydroxypyridine-3-sulfonic acid (CAS 51498-37-4) acts as a pivotal building block within the API intermediates market, primarily utilized for the synthesis of Torsemide and other pyridine-based diuretics where high purity fine chemicals (Pharma/API purity 99% | General Industry purity 98%) are essential for meeting stringent pharmacopeial standards. 4-Pyridinol-3-sulfonic acid serves as a high-performance precursor for custom synthesis services, as global CDMOs increasingly prioritize rigorous impurity profiling and analytical validation to align with current shifts toward strategic global sourcing and enhanced regulatory oversight. 4-Hydroxy-3-pyridinesulfonic acid remains a preferred choice for advanced process development and bulk chemical supplier procurement, reflecting a growing industry demand for reliable precursors that optimize yields in large-scale commercial manufacturing while maintaining precise crystalline morphology for downstream stability (Pharma/API purity 99% | General Industry purity 98%). We are an established global intermediates supplier with >= 99% purity, ensuring minimal carry-over of impurities in the final API, and a broad range of various pharmaceutical intermediates for API manufacturers and finished formulators, providing comprehensive analytical (HPLC/NMR/MS) and supporting 4-Hydroxypyridine-3-sulfonic acid COA/TDS/SDS region-specific regulatory support. reliable lead times, worldwide supply chain capabilities
4-Hydroxypyridine-3-sulfonic acid (CAS 51498-37-4) acts as a pivotal building block within the API intermediates market, primarily utilized for the synthesis of Torsemide and other pyridine-based diuretics where high purity fine chemicals (Pharma/API purity 99% | General Industry purity 98%) are essential for meeting stringent pharmacopeial standards. 4-Pyridinol-3-sulfonic acid serves as a high-performance precursor for custom synthesis services, as global CDMOs increasingly prioritize rigorous impurity profiling and analytical validation to align with current shifts toward strategic global sourcing and enhanced regulatory oversight. 4-Hydroxy-3-pyridinesulfonic acid remains a preferred cho...
Chemical Properties & Specifications
P260, P264, P264+P265, P280, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P351+P338, P305+P354+P338, P316, P317, P321, P332+P317, P337+P317, P362+P364, P363, P405, and P501
Skin Corr. 1B (63.6%)
Skin Irrit. 2 (18.2%)
A valuable synthetic intermediate used in the manufacturing of the loop diuretic Torsemide and in the preparation of (arylpiperazinyl)cyclohexylsulfonamides as potential alpha-1-adrenergic receptor antagonists
A functionalized pyridine derivative and organosulfur compound utilized as a catalyst in organic syntheses and as a precursor for 4-methoxy-3-pyridinesulfonyl chloride
An effective proton-shunting agent and ion-exchange resin used in analytical chemistry and crystallographic data collection
A versatile starting material employed in the production of detergents, water-soluble dyes, and various catalysts for industrial research and development.
4-Hydroxypyridine-3-sulfonic Acid is an organosulfur compound and synthetic intermediate primarily used to manufacture Torsemide and as a catalyst in organic syntheses
This compound is widely used in the pharmaceutical, chemical manufacturing, and dye industries for the production of medicines, detergents, and water-soluble dyes
It is soluble in water, ethanol, and methanol, and is suitable for use in liquid-phase organic synthesis and ion-exchange resin applications
Standard specifications include CAS number 51498-37-4, high purity (typically ≥95% or ≥98%), and documentation such as COA, TDS, impurity reports, and regulatory compliance documents
Scimplify has capabilities for global distribution and custom synthesis through an integrated network of manufacturers and logistics partners with reliable lead time
The product is export ready with a standard MOQ starting from 100 kgs, with lead times for international customers depending on the shipping destination and specific grade.
Category : Pharmaceutical Actives & Precursors
Sub-Category : Intermediates & Precursors
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