Description

[3-(3-Aminopropylamino)-2-Hydroxy-Propyl]Sulfanylphosphonic Acid is a specialized organophosphorus compound featuring a unique bifunctional structure combining aminopropylamino, hydroxy, and sulfanylphosphonic acid groups. This molecular architecture makes it a highly effective chelating agent and scale inhibitor, crucial for managing water chemistry in demanding industrial processes. It is primarily utilized by water treatment specialists, formulators of industrial cleaning agents, and researchers developing advanced functional materials who require precise control over metal ions and mineral deposits.

Application

• Industrial Water Treatment: A key component in cooling water and boiler water treatment formulations for its superior scale inhibition (particularly against calcium carbonate and sulfate scales) and corrosion control properties.
• Detergent & Cleaning Formulations: Used as a builder and sequestrant in industrial and institutional cleaning products to inactivate water hardness ions (Ca²⁺, Mg²⁺), enhancing surfactant efficiency.
• Pulp & Paper Industry: Employed in process water systems to prevent scale formation on equipment and to chelate metal ions that can catalyze the degradation of cellulose fibers.
• Oilfield Applications: Functions as a scale inhibitor in squeeze treatments and production chemicals to prevent mineral scale deposition in wells and surface facilities.
• Textile Processing: Serves as a chelating agent in dyeing and bleaching baths to sequester metal ions that can cause shade variation or fabric damage.
• Metal Surface Treatment: Used in metal cleaning and plating solutions to control water hardness and prevent precipitation of salts on metal surfaces.
• Research & Development: A valuable intermediate or functional additive in the synthesis of novel polymers, biomimetic materials, and advanced ceramic precursors.

Basic Information

Product Name	[3-(3-Aminopropylamino)-2-Hydroxy-Propyl]Sulfanylphosphonic Acid
CAS No.	56643-49-3
Molecular Formula	C₆H₁₇N₂O₄PS
Molecular Weight	244.25 g/mol
Synonyms	N-(3-Aminopropyl)-N-(2-hydroxy-3-sulfanylpropyl)aminomethylphosphonic acid; 2-Hydroxy-3-[(phosphonomethyl)thio]propyl(3-aminopropyl)amine; ATMP derivative; Amino-terminated sulfanylphosphonate; Phosphonomethylthio hydroxypropyl aminopropylamine; Bis(aminopropyl)amino hydroxypropyl phosphonothioate; APHSPA; Water treatment scale inhibitor 56643-49-3
EINECS	Contact for details

Quality Control

Our production of [3-(3-Aminopropylamino)-2-Hydroxy-Propyl]Sulfanylphosphonic Acid adheres to a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistent purity, performance, and compliance with relevant industry standards. Certificates of Analysis (COA) detailing specific batch results are available upon request to support your quality assurance and regulatory needs.

Storage

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

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 48.0% (as active acid)
pH (1% aqueous solution)	2.0 - 4.0
Density (20°C)	1.25 - 1.35 g/cm³
Water Content	≤ 52.0%
Iron (Fe)	≤ 10 ppm
Chloride (Cl)	≤ 50 ppm

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