Description

1,2,3-Propanetriol, Homopolymer, Dioctadecanoate is a high-purity, synthetic polymer ester derived from glycerol and stearic acid. This compound serves as a versatile and effective non-ionic emulsifier, lubricant, and consistency regulator in a wide range of industrial formulations. It is particularly valuable for manufacturers in the cosmetics, personal care, and pharmaceutical industries seeking stable, skin-friendly ingredients for creams, ointments, and lotions.

Application

• Primary emulsifier and stabilizer in cosmetic and pharmaceutical creams and ointments.
• Opacifying agent and pearlescent additive in shampoos, conditioners, and liquid soaps.
• Internal lubricant and plasticizer in polymer processing and resin formulations.
• Consistency factor and texturizer in decorative cosmetics, such as lipsticks and makeup foundations.
• Key ingredient in industrial lubricants and release agents for metalworking and molding.
• Base material for the synthesis of more complex specialty esters and surfactants.
• Component in food-grade packaging coatings and adhesives (subject to specific purity grades).

Basic Information

Product Name	1,2,3-Propanetriol, Homopolymer, Dioctadecanoate
CAS No.	61725-93-7
Molecular Formula	Typically C57H110O8 (for a trimer)
Molecular Weight	~ 923.5 g/mol (for a trimer)
Synonyms	Polyglyceryl-3 Distearate; PG-3 Distearate; Triglyceryl Distearate; Polyglycerol-3 Distearate; Polyglycerin-3 Distearate; Glycerol Homopolymer Dioctadecanoate; PEG-3 Distearate (common industry alias); Polyglyceryl Ester of Stearic Acid
EINECS	262-979-2

Quality Control

Our 1,2,3-Propanetriol, Homopolymer, Dioctadecanoate is manufactured under a strict quality management system. Each batch is tested to ensure it meets precise specifications for identity, purity, acid value, saponification value, and melting point. Certificates of Analysis (COA) are provided with every shipment, and we can supply material compliant with relevant standards such as USP/NF, FCC, or Kosher/Halal upon request.

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 material is hygroscopic (moisture-sensitive); therefore, the container must be kept tightly sealed when not in use to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	White to off-white waxy solid or flakes
Identification (IR)	Conforms to standard
Assay (by GC or Titration)	Min. 95.0%
Acid Value	≤ 5.0 mg KOH/g
Saponification Value	140 - 160 mg KOH/g
Melting Point	50 - 60 °C
Heavy Metals (as Pb)	≤ 10 ppm
Loss on Drying	≤ 1.0 %

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