Description

2-Amino-2-(Hydroxymethyl)Butyl Stearate is a multifunctional specialty ester combining a fatty acid chain with an amino alcohol moiety. This unique structure provides excellent emulsifying, conditioning, and surface-modifying properties, making it a valuable intermediate and additive. It is primarily utilized in the formulation of high-performance personal care products, advanced lubricants, and specialty polymer systems where its dual functionality is critical.

Application

• Personal Care & Cosmetics: Acts as a highly effective emulsifier, emollient, and conditioning agent in creams, lotions, and hair care products.
• Lubricant & Grease Additives: Serves as a friction modifier and anti-wear agent in synthetic and semi-synthetic lubricants.
• Polymer & Resin Modification: Used as a plasticizer, internal lubricant, and processing aid for engineering plastics and specialty resins.
• Pharmaceutical Excipients: Functions as a solubilizer and penetration enhancer in topical drug delivery systems.
• Textile & Fiber Processing: Employed as a softener and antistatic agent for synthetic and natural fibers.
• Industrial Surfactants: A key intermediate for the synthesis of cationic and amphoteric surfactants.

Basic Information

Product Name	2-Amino-2-(Hydroxymethyl)Butyl Stearate
CAS No.	31977-95-4
Molecular Formula	C23H47NO3
Molecular Weight	385.63 g/mol
Synonyms	2-Amino-2-(hydroxymethyl)-1,3-propanediol monostearate; Tris(hydroxymethyl)aminomethane monostearate; Tromethamine stearate; Trometamol stearate; Tris stearate; Aminotrimethylolmethane stearate; THAM stearate; 1,3-Propanediol, 2-amino-2-(hydroxymethyl)-, monooctadecanoate
EINECS	Contact for details

Quality Control

Every batch of 2-Amino-2-(Hydroxymethyl)Butyl Stearate is manufactured under a strict quality management system. Our products undergo rigorous analytical testing, including chromatography and titration methods, to ensure consistent purity and performance that meets or exceeds industry specifications. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with each shipment to guarantee supply chain transparency and product reliability.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to minimize moisture absorption. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white waxy solid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	65 - 75 °C
Acid Value	≤ 2.0 mg KOH/g
Water Content (KF)	≤ 1.0 %
Heavy Metals (as Pb)	≤ 10 ppm

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