Description

(2-Hydroxyethyl)Trimethylammonium 5-Oxoprolinate is a quaternary ammonium salt derivative of L-pyroglutamic acid, offering unique properties as a choline source and a moisturizing agent. This compound is valued for its compatibility with biological systems and its ability to deliver active components effectively. It serves as a key ingredient for manufacturers in the cosmetic, personal care, and pharmaceutical intermediates sectors, where high-purity, functional actives are required.

Application

• Cosmetic & Skincare Formulations: Acts as a highly effective humectant and moisturizing agent in creams, lotions, and serums.
• Hair Care Products: Used in conditioners and treatments for its hair-smoothing and moisturizing properties.
• Pharmaceutical Intermediates: Serves as a precursor or active component in the synthesis of specialized drug formulations.
• Biochemical Research: Employed as a choline donor or a model compound in various biochemical and physiological studies.
• Advanced Material Synthesis: Utilized in the production of specialty polymers and ionic liquids.

Basic Information

Product Name	(2-Hydroxyethyl)Trimethylammonium 5-Oxoprolinate
CAS No.	5046-71-9
Molecular Formula	C10H20N2O4
Molecular Weight	232.28 g/mol
Synonyms	Choline Pyroglutamate; L-Pyroglutamic Acid Choline Salt; 5-Oxo-L-proline Choline Salt; (2-Hydroxyethyl)trimethylammonium (5-oxo-L-prolinate); Choline L-Pyroglutamate; Cholinium L-pyroglutamate; AquaCare® Choline PG (Trade Name); Choline Salt of Pyrrolidone Carboxylic Acid
EINECS	225-730-1

Quality Control

Our (2-Hydroxyethyl)Trimethylammonium 5-Oxoprolinate is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing, including assay, identification, and impurity profiling, to ensure it meets the high standards required for cosmetic and research applications. A Certificate of Analysis (COA) detailing purity, physical characteristics, and safety data is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	≤ 0.1%
Specific Rotation	Contact for details
pH (5% solution)	6.0 - 8.0

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