Description

Octadecanoic Acid, 2,3-Bis[(1-Oxohexadecyl)Oxy]Propyl Ester is a high-purity synthetic ester, specifically a triglyceride derivative of stearic and palmitic acids. This compound is valued for its excellent emollient, lubricating, and stabilizing properties, making it a versatile functional ingredient. It is primarily needed by manufacturers in the cosmetics, personal care, pharmaceutical, and specialty chemical industries for formulating high-performance products.

Application

• Cosmetic & Personal Care Formulations: Acts as a premium emollient, skin-conditioning agent, and viscosity modifier in creams, lotions, lipsticks, and makeup products.
• Pharmaceutical Excipient: Used as a lubricant in tablet manufacturing, a base for ointments, and a controlled-release matrix agent.
• Industrial Lubricants & Release Agents: Serves as a biodegradable component in synthetic lubricants, mold release agents, and textile fiber finishes.
• Food-Grade Additives (where specified): Potential use as an anti-caking agent, emulsifier, or coating agent in food processing applications, subject to compliance and specific grade availability.
• Plastic & Polymer Additive: Functions as an internal lubricant and processing aid to improve flow and mold release in polymer compounding.
• Specialty Chemical Intermediate: Employed in the synthesis of more complex esters, surfactants, and other value-added chemical products.

Basic Information

Product Name	Octadecanoic Acid, 2,3-Bis[(1-Oxohexadecyl)Oxy]Propyl Ester
CAS No.	2177-98-2
Molecular Formula	C55H106O6
Molecular Weight	863.4 g/mol
Synonyms	Glyceryl Tristearate; Tristearin; Glycerol Tristearate; Stearic Acid Triglyceride; 1,2,3-Trioctadecanoylglycerol; Octadecanoic Acid, 1,2,3-Propanetriyl Ester; STS; GTS
EINECS	218-552-0

Quality Control

Our Octadecanoic Acid, 2,3-Bis[(1-Oxohexadecyl)Oxy]Propyl Ester is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for identity, purity, and performance. Certificates of Analysis (COA) documenting key parameters are available upon request. We can supply grades compliant with relevant standards such as USP/NF, FCC, or Kosher, based on customer requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong oxidizing agents, excessive heat, and moisture. Under these conditions, the product has excellent shelf stability.

Specification

Item	Specification
Appearance	White to off-white powder or flakes
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	69 - 73 °C
Acid Value	≤ 2.0 mg KOH/g
Iodine Value	≤ 3.0 g I₂/100g
Saponification Value	188 - 198 mg KOH/g
Heavy Metals (as Pb)	≤ 10 ppm
Loss on Drying	≤ 0.5%

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