Description

Sodium Dimethyl 5-(3-Sulphonatopropoxy)Phthalate is a specialized, water-soluble phthalate derivative with a sulfonated side chain. This unique structure provides excellent compatibility with aqueous systems and enhanced solubility, making it a valuable intermediate for advanced chemical synthesis. It is primarily utilized in the production of high-performance dyes, functional polymers, and specialty surfactants for industrial and research applications.

Application

• Dye and Pigment Intermediate: A key building block for synthesizing water-soluble, reactive, and acid dyes, particularly for textile and ink applications.
• Polymer Modification: Used to introduce sulfonate groups into polymer chains to enhance hydrophilicity, antistatic properties, and dyeability.
• Specialty Surfactant Synthesis: Serves as a precursor for anionic surfactants with specific emulsifying and dispersing properties.
• Chemical Research: Employed as a model compound or intermediate in organic synthesis and materials science research.
• Photographic Chemicals: Potential use in the formulation of certain photographic chemicals and sensitizers.
• Crosslinking Agent: Can act as a crosslinker or co-monomer in the production of ion-exchange resins or hydrogels.

Basic Information

Product Name	Sodium Dimethyl 5-(3-Sulphonatopropoxy)Phthalate
CAS No.	31352-31-5
Molecular Formula	C13H13NaO8S
Molecular Weight	352.29 g/mol
Synonyms	5-(3-Sulfonatopropoxy)isobenzofuran-1,3-dione, sodium salt; Dimethyl 5-(3-sulfopropoxy)phthalate sodium salt; Sodium 5-(3-sulfopropoxy)phthalate dimethyl ester; Phthalic acid, dimethyl ester, 5-(3-sulfopropoxy)-, sodium salt; 1,3-Isobenzofurandione, 5-[3-(sodiooxy)-3-oxopropoxy]-, dimethyl ester; SDMP; Sodium sulfopropoxy phthalate dimethyl ester
EINECS	Contact for details

Quality Control

Our production of Sodium Dimethyl 5-(3-Sulphonatopropoxy)Phthalate adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including assay, impurity profiling, and identity confirmation, to ensure high purity and batch-to-batch consistency. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality and performance.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content	≤ 2.0%
pH (5% solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 10 ppm

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