Description

n-(1-Oxobutyl)-L-Cystine is a specialized modified amino acid derivative, specifically a cystine derivative with a butyryl moiety. This compound is valued for its role as a key synthetic intermediate and building block in advanced organic synthesis and pharmaceutical research. It is primarily required by R&D chemists and process development scientists in the pharmaceutical, biotechnology, and fine chemical industries for applications such as peptide modification and the development of novel active pharmaceutical ingredients (APIs).

Application

• Pharmaceutical Intermediate: Serves as a crucial building block in the synthesis of novel peptide-based drugs and therapeutic agents.
• Bioconjugation Chemistry: Used for the modification of proteins, peptides, and antibodies to alter their properties or create drug conjugates.
• Research & Development: A valuable reagent in academic and industrial R&D for studying cysteine/cystine chemistry and developing new synthetic methodologies.
• Peptide Synthesis: Employed in solid-phase and solution-phase peptide synthesis to introduce specific functional groups or create disulfide-linked structures.
• Biochemical Research: Used in studies related to oxidative stress, protein folding, and redox biology due to its disulfide bond.
• Fine Chemical Production: Acts as a precursor for the manufacture of more complex, high-value specialty chemicals.

Basic Information

Product Name	n-(1-Oxobutyl)-L-Cystine
CAS No.	94108-05-1
Molecular Formula	C14H24N2O6S2
Molecular Weight	380.48 g/mol
Synonyms	L-Cystine, N-(1-oxobutyl)-; Butanoyl-L-cystine; N-Butyryl-L-cystine; (2R,2'R)-3,3'-Dithiobis(2-(butyramidopropanoic acid); N-(1-Oxobutyl)cysteine disulfide; N-Butanoylcystine; N-Butyrylcystine; L-Cystine N-butanoate
EINECS	Contact for details

Quality Control

Our n-(1-Oxobutyl)-L-Cystine is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity assessment and identity confirmation via spectroscopic methods, to ensure it meets high-purity standards suitable for research and synthesis. Certificates of Analysis (COA) with detailed batch-specific results are available upon request to support your quality assurance protocols.

Storage

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

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Optical Rotation	Contact for details
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%

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