Description

Fmoc-D-Cysteic Acid CAS NO 136554-96-6 is a high-purity, protected amino acid derivative essential for solid-phase peptide synthesis (SPPS). This compound is critical for researchers and manufacturers requiring precise chirality and side-chain protection to ensure the successful synthesis of complex peptides and proteins. It is primarily used by pharmaceutical R&D teams, biotechnology companies, and academic institutions focused on developing novel therapeutic peptides, diagnostic agents, and biochemical tools.

Application

• Solid-Phase Peptide Synthesis (SPPS): As a key building block for incorporating D-cysteic acid residues into peptide chains with Fmoc protection strategy.
• Pharmaceutical Research: For the development of peptide-based drugs, including enzyme inhibitors, receptor agonists/antagonists, and targeted therapeutics.
• Bioconjugation & Labeling: Utilized in the preparation of peptide conjugates for drug delivery systems, imaging probes, and antibody-drug conjugates (ADCs).
• Biochemical Tool Development: Synthesis of substrates, standards, and probes for studying enzyme activity, protein-protein interactions, and cellular signaling pathways.
• Material Science: Incorporation into bio-inspired polymers and surface coatings to impart specific chemical functionalities.

Basic Information

Product Name	Fmoc-D-Cysteic Acid
CAS No.	136554-96-6
Molecular Formula	C₁₈H₁₇NO₇S
Molecular Weight	391.39 g/mol
Synonyms	N-[(9H-Fluoren-9-ylmethoxy)carbonyl]-D-cysteic Acid; Fmoc-D-Cys(SO3H)-OH; Fmoc-D-Cysteine Sulfonic Acid; (R)-2-(((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-sulfopropanoic Acid; N-Fmoc-D-cysteic Acid; Fmoc-D-Cys(O3H)-OH; Fmoc-D-3-Sulfoalanine; N-α-Fmoc-D-cysteic Acid
EINECS	Contact for details

Quality Control

Our Fmoc-D-Cysteic Acid is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for purity, chiral analysis, and identity confirmation. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 15-25°C. This material is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent degradation. For long-term storage, consider desiccated conditions.

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%
Heavy Metals	≤ 20 ppm

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