Description

Polysuccinimide CAS NO 5608-40-6 is a high-purity synthetic polymer derived from aspartic acid, serving as a key intermediate in the production of poly(aspartic acid) (PASP). This compound is valued for its role in creating high-performance, biodegradable materials with excellent chelating and dispersing properties. It is essential for manufacturers in the water treatment, detergent, agriculture, and personal care industries seeking sustainable and effective alternatives to traditional polycarboxylates.

Application

• Primary Intermediate for the synthesis of Poly(aspartic acid) (PASP), a biodegradable scale and corrosion inhibitor.
• Water Treatment Chemicals: Used in formulations for boiler water, cooling water, and reverse osmosis systems to prevent mineral scale.
• Detergent & Dishwashing Builders: Acts as a co-builder to enhance cleaning efficiency and reduce phosphate usage in eco-friendly detergents.
• Agriculture & Horticulture: Employed in fertilizer coatings and soil conditioners to improve nutrient uptake and soil health.
• Personal Care & Cosmetics: Functions as a conditioning agent and viscosity modifier in shampoos, skin creams, and other formulations.
• Oilfield Chemicals: Used in drilling fluid and production chemical formulations for scale inhibition.
• Industrial Cleaners: A key component in metal cleaning and industrial descaling products.
• Biomedical Research: Investigated for use in drug delivery systems and biodegradable polymeric materials.

Basic Information

Product Name	Polysuccinimide
CAS No.	5608-40-6
Molecular Formula	(C4H5NO3)n
Molecular Weight	Variable (Polymer)
Synonyms	Poly(succinimide); Polyanhydroaspartic acid; Poly(2,5-pyrrolidinedione); Poly(imino(1-oxo-1,2-ethanediyl)); Poly(aspartimide); PASP Intermediate; Thermal Polyaspartate Precursor; Aspartic Acid Polymer Intermediate
EINECS	Contact for details

Quality Control

Our Polysuccinimide is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure consistent purity, molecular weight distribution, and performance. Certificates of Analysis (COA) detailing key parameters such as assay, residual solvents, and heavy metal content are provided and 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 room temperature (15-25°C). The product is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent moisture absorption, which may affect product stability and handling properties.

Specification

Item	Specification
Appearance	White to light yellow powder or granules
Identification (IR)	Conforms to reference spectrum
Assay (as Polysuccinimide)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition (Sulfated Ash)	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents (GC)	Meets ICH Q3C guidelines
Molecular Weight (GPC, Mw)	Contact for details (Typical range: 1,000 - 10,000 Da)

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