Description

Potassium Dimethyl 5-Sulphonatoisophthalate is a high-purity, water-soluble aromatic sulfonate salt primarily used as a key intermediate in the synthesis of advanced polymers and specialty chemicals. Its value lies in its ability to introduce sulfonate functionality, enhancing hydrophilicity, dyeability, and antistatic properties in final products. This compound is essential for manufacturers in the polymer, textile, and specialty chemical industries seeking to develop high-performance materials.

Application

• Polymer Modification: A crucial monomer for synthesizing sulfonated polyesters and polyamides, imparting improved dye affinity and moisture management properties.
• Textile Chemicals: Used in the production of antistatic agents, dyeing auxiliaries, and fiber modifiers for synthetic fabrics.
• Specialty Surfactants: Serves as a building block for creating anionic surfactants with specific solubility and emulsification characteristics.
• Ion-Exchange Resins: Acts as a functional monomer in the manufacture of cation-exchange resins for water treatment and purification.
• Pharmaceutical Intermediates: Employed in the synthesis of certain active pharmaceutical ingredients (APIs) and diagnostic agents.
• Liquid Crystal Polymers (LCPs): A potential intermediate for creating sulfonated aromatic monomers used in high-performance LCPs.
• Photographic Chemicals: Used in the synthesis of certain dyes and chemicals for photographic and imaging applications.
• Research & Development: A valuable reagent for academic and industrial R&D in organic synthesis and material science.

Basic Information

Product Name	Potassium Dimethyl 5-Sulphonatoisophthalate
CAS No.	10433-41-7
Molecular Formula	C10H9KO7S
Molecular Weight	312.33 g/mol
Synonyms	Dimethyl 5-Sulfoisophthalate Potassium Salt; Potassium 5-Sulfoisophthalic Acid Dimethyl Ester; 5-Sulfoisophthalic Acid Dimethyl Ester Potassium Salt; Dimethyl Potassium Sulfoisophthalate; Potassium Dimethyl Sulfoisophthalate; SIP (Potassium Salt); SIP(DM)K; 1,3-Benzenedicarboxylic Acid, 5-Sulfo-, 1,3-Dimethyl Ester, Potassium Salt
EINECS	233-925-7

Quality Control

Our Potassium Dimethyl 5-Sulphonatoisophthalate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for use in sensitive applications like polymer synthesis. Certificates of Analysis (COA) documenting key parameters are available upon request to support your quality assurance protocols.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which can affect product quality and handling.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines
pH (5% Solution)	6.0 - 8.0

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