Description

3,3''-Thiobis-1-Propanesulfonic Acid, Disodium Salt is a high-purity, water-soluble organic sulfonate compound. It serves as a critical intermediate and functional additive in advanced chemical synthesis and formulation processes. This product is essential for manufacturers in the pharmaceutical, specialty chemical, and research sectors requiring reliable, high-quality raw materials for sensitive applications.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and prodrugs, particularly where sulfonate groups are required for solubility or biological activity.
• Bioconjugation Reagent: Acts as a linker or spacer molecule in the development of antibody-drug conjugates (ADCs) and other bioconjugate therapeutics.
• Polymer Modification: Employed to introduce sulfonate functionality into polymers, enhancing properties like hydrophilicity, ion-exchange capacity, or anti-fouling characteristics.
• Chemical Synthesis: Serves as a versatile building block in organic synthesis for creating complex molecules with sulfur and sulfonate moieties.
• Buffer Component: Can be utilized in the formulation of specialized biochemical and diagnostic buffers due to its sulfonic acid group.
• Crosslinking Agent: Functions as a crosslinker in the preparation of hydrogels or polymeric networks where a disulfide bridge is desired for redox-responsive behavior.

Basic Information

Product Name	3,3''-Thiobis-1-Propanesulfonic Acid, Disodium Salt
CAS No.	62408-57-5
Molecular Formula	C6H12Na2O6S3
Molecular Weight	314.30 g/mol
Synonyms	Disodium 3,3'-Thiobis(1-propanesulfonate); DTSSP (Disuccinimidyl Tartrate); 3,3'-Dithiobis(1-propanesulfonic acid) disodium salt; Bis(3-sulfopropyl) disulfide, disodium salt; 1-Propanesulfonic acid, 3,3'-thiobis-, disodium salt; SPDP crosslinker analog; Sulfosuccinimidyl tartrate disodium salt (related compound).
EINECS	Contact for details

Quality Control

Our 3,3''-Thiobis-1-Propanesulfonic Acid, Disodium Salt is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting specifications for sensitive applications. Certificates of Analysis (COA) documenting purity, assay, and impurity profiles are provided and available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed to minimize exposure to atmospheric humidity.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	≤ 0.1%

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