Description

Octyl L-Cysteinate Hydrochloride is a specialized amino acid derivative where the thiol group of L-cysteine is esterified with octanol and presented as a hydrochloride salt. This chemical modification enhances its lipophilicity and stability, making it a valuable intermediate for advanced synthesis and formulation. It is primarily sought by research and development teams in the pharmaceutical, cosmetic, and nutraceutical industries for applications requiring a protected, bioavailable form of cysteine.

Application

• Pharmaceutical Intermediate: Used in the synthesis of prodrugs and active pharmaceutical ingredients (APIs) where controlled release or enhanced membrane permeability is required.
• Cosmetic & Personal Care Actives: Serves as a precursor for skin-conditioning agents and antioxidants in anti-aging and whitening formulations.
• Nutritional Supplement Research: Investigated as a potential source of bioavailable cysteine and glutathione precursors in advanced nutraceuticals.
• Biochemical Research: Employed as a building block in peptide synthesis and as a tool compound in studies of thiol biochemistry and transport.
• Hair Care Products: Can be utilized in the development of treatments aimed at improving hair strength and structure due to its cysteine content.

Basic Information

Product Name	Octyl L-Cysteinate Hydrochloride
CAS No.	94333-34-3
Molecular Formula	C₁₁H₂₃NO₂S·HCl
Molecular Weight	269.84 g/mol
Synonyms	L-Cysteine octyl ester hydrochloride; Octyl L-cysteinate HCl; (R)-2-Amino-3-mercaptopropanoic acid octyl ester hydrochloride; Cysteine octyl ester monohydrochloride; Cys-OOct·HCl; H-Cys-OC8·HCl; 2-Amino-3-sulfanylpropyl octanoate hydrochloride (tautomeric form)
EINECS	Contact for details

Quality Control

Our Octyl L-Cysteinate Hydrochloride is manufactured under strict quality management systems. Each batch is subjected to comprehensive analytical testing, including identification, assay, and impurity profiling, to ensure it meets stringent specifications for research and industrial use. A Certificate of Analysis (COA) detailing purity, chiral purity, and related substances is provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept under anhydrous conditions. For long-term storage, consider using a desiccator or storing under an inert atmosphere to maintain stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Chiral Purity (HPLC)	≥ 99.0% (L-Isomer)
Loss on Drying	≤ 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.