Description

4-Hydroxybutyl Stearate is a fatty acid ester derived from stearic acid and 1,4-butanediol, serving as a versatile chemical intermediate and functional additive. Its molecular structure provides a unique combination of lipophilic character and a terminal hydroxyl group, making it valuable for modifying material properties. This compound is particularly relevant for manufacturers in the personal care, plastics, and lubricant industries seeking to enhance product performance through tailored ester chemistry.

Application

• Personal Care & Cosmetics: Acts as an effective emollient, skin-conditioning agent, and viscosity modifier in creams, lotions, and makeup formulations.
• Polymer & Plastic Additive: Functions as an internal or external lubricant and plasticizer in PVC and other polymer processing to improve flow and flexibility.
• Lubricant & Grease Formulation: Serves as a synthetic base oil or additive component to enhance lubricity, thermal stability, and corrosion protection.
• Chemical Intermediate: Utilized in organic synthesis, particularly for further reactions via its reactive hydroxyl group to produce more complex esters or polymers.
• Textile & Fiber Processing: Employed as a softening agent and lubricant for synthetic fibers and yarns to reduce friction during manufacturing.
• Industrial Coatings & Inks: Used as a flow aid and dispersant to improve the application properties and finish of coatings and printing inks.

Basic Information

Product Name	4-Hydroxybutyl Stearate
CAS No.	15337-64-1
Molecular Formula	C22H44O3
Molecular Weight	356.59 g/mol
Synonyms	Stearic Acid 4-Hydroxybutyl Ester; Butane-1,4-diol Monostearate; 1,4-Butanediol Monostearate; 4-Hydroxybutyl Octadecanoate; Octadecanoic Acid, 4-Hydroxybutyl Ester; Hydroxybutyl Stearate; 4-HBS
EINECS	239-374-8

Quality Control

Our 4-Hydroxybutyl Stearate 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. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical constants is provided with every shipment to guarantee supply reliability and batch-to-batch consistency for your critical processes.

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). Keep away from strong oxidizing agents and heat sources. Under these conditions, the product remains stable for extended periods.

Specification

Item	Specification
Appearance	White to off-white waxy solid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Acid Value	≤ 1.0 mg KOH/g
Hydroxyl Value	150 - 165 mg KOH/g
Saponification Value	155 - 170 mg KOH/g
Melting Point	50 - 55 °C
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.