Description

n-(9H-Fluoren-9-Ylacetyl)-S-Methylcysteine is a specialized, high-purity chemical building block designed for advanced organic synthesis and pharmaceutical research. This compound is critical for researchers and manufacturers requiring precise, reliable intermediates for the development of complex molecules. It is primarily utilized in the pharmaceutical and biotechnology sectors for applications such as peptide synthesis and medicinal chemistry.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel active pharmaceutical ingredients (APIs) and drug candidates.
• Peptide Chemistry: Used in solid-phase and solution-phase peptide synthesis, particularly for introducing protected cysteine derivatives or creating specific molecular linkages.
• Medicinal Chemistry Research: Serves as a crucial reagent for structure-activity relationship (SAR) studies and the development of targeted therapeutics.
• Bioconjugation: Facilitates the site-specific modification of proteins, antibodies, or other biomolecules for diagnostic or therapeutic purposes.
• Chemical Biology Probes: Employed in the creation of probes for studying enzyme mechanisms or cellular pathways.
• Process Development: Used in scaling up synthetic routes for pilot and commercial manufacturing of specialty chemicals.

Basic Information

Product Name	n-(9H-Fluoren-9-Ylacetyl)-S-Methylcysteine
CAS No.	85369-28-4
Molecular Formula	C20H19NO3S
Molecular Weight	353.43 g/mol
Synonyms	Fmoc-S-methyl-L-cysteine; N-[(9H-Fluoren-9-ylmethoxy)carbonyl]-S-methyl-L-cysteine; N-(9-Fluorenylmethoxycarbonyl)-S-methylcysteine; Fmoc-Cys(Me)-OH; N-α-Fmoc-S-methyl-L-cysteine; S-Methyl-N-[(9H-fluoren-9-ylmethoxy)carbonyl]-L-cysteine; L-Cysteine, S-methyl-, N-[(9H-fluoren-9-ylmethoxy)carbonyl]-
EINECS	Contact for details

Quality Control

Our n-(9H-Fluoren-9-Ylacetyl)-S-Methylcysteine is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for research and pharmaceutical applications. Certificates of Analysis (COA) with detailed specifications are provided for every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed in a dry environment to prevent moisture absorption, which can affect stability and performance.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Assay (HPLC)	≥98.0%
Specific Rotation	Contact for details
Water Content (KF)	≤1.0%
Heavy Metals	≤20 ppm
Residual Solvents (GC)	Complies with ICH guidelines

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