Description

2-Hydroxyethyl-Trimethylammonium L-(+)-L is a high-purity, chiral quaternary ammonium compound of significant interest in advanced chemical synthesis. This material serves as a versatile building block and chiral auxiliary, enabling the production of enantiomerically pure substances critical for pharmaceutical efficacy and safety. It is essential for research and manufacturing in the pharmaceutical, agrochemical, and specialty chemical industries, where precise stereochemistry is paramount.

Application

• Pharmaceutical Intermediates: Key chiral synthon for the development of active pharmaceutical ingredients (APIs), particularly in neurology and cardiology.
• Asymmetric Catalysis: Employed as a phase-transfer catalyst or ligand precursor in stereoselective synthesis.
• Agrochemical Synthesis: Used in the production of enantiomerically pure herbicides and plant growth regulators.
• Biochemical Research: Serves as a standard or reagent in enzymatic studies and chiral separation method development.
• Ionic Liquids & Specialty Materials: A precursor for functionalized ionic liquids and advanced materials with tailored properties.

Basic Information

Product Name	2-Hydroxyethyl-Trimethylammonium L-(+)-L
CAS No.	888724-51-4
Molecular Formula	C6H16NO+ • X- (Contact for counterion details)
Molecular Weight	118.20 g/mol (Cation)
Synonyms	L-(+)-2-Hydroxyethyltrimethylammonium; (2R)-2-Hydroxy-N,N,N-trimethylethanaminium; Choline L-(+)-tartrate salt derivative; (R)-2-Hydroxyethyltrimethylammonium cation; L-Choline; (R)-Choline; Trimethyl(2-hydroxyethyl)ammonium L-isomer; (2-Hydroxyethyl)trimethylazanium L-form
EINECS	Contact for details

Quality Control

Our 2-Hydroxyethyl-Trimethylammonium L-(+)-L is manufactured under strict quality management systems to ensure batch-to-batch consistency and high enantiomeric purity. Each lot is supported by a comprehensive Certificate of Analysis (COA) detailing identity, purity, chiral excess, and impurity profiles. We adhere to cGMP principles where applicable, ensuring the material meets the stringent requirements for pharmaceutical R&D and production.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place. Due to its hygroscopic nature, the container must be kept tightly sealed under dry, inert conditions to prevent moisture absorption and degradation. Recommended long-term storage temperature is 2-8°C.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Enantiomeric Excess (Chiral HPLC)	≥ 99.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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