Description

Cystargin CAS NO 105634-05-7 is a high-purity, specialized amino acid derivative used in advanced biochemical research and pharmaceutical development. This compound is valued for its role as a key intermediate in the synthesis of peptides and other bioactive molecules, offering precise control over molecular structure and function. It is essential for researchers and manufacturers in the pharmaceutical, biotechnology, and life science sectors who require reliable, high-quality building blocks for drug discovery and development.

Application

• Pharmaceutical Intermediate: A critical building block in the synthesis of novel therapeutic peptides and small molecule drugs.
• Biochemical Research: Used as a substrate or reagent in enzymatic studies and metabolic pathway investigations.
• Peptide Synthesis: Serves as a protected or modified amino acid derivative in solid-phase and solution-phase peptide chemistry.
• Proteomics & Cell Culture: Employed in the formulation of specialized media and buffers for advanced cell biology applications.
• Reference Standard: Utilized as an analytical standard in quality control laboratories for method development and validation.

Basic Information

Product Name	Cystargin
CAS No.	105634-05-7
Molecular Formula	C9H19N5O4S
Molecular Weight	293.35 g/mol
Synonyms	L-Cystargin; Nα-Boc-Nω-Pbf-L-Cystargin; Boc-Cys(Pbf)-OH; Boc-Cys(Pbf)-Arg-OH; tert-Butyloxycarbonyl-S-(2,2,4,6,7-pentamethyldihydrobenzofuran-5-sulfonyl)-L-cysteinyl-L-arginine; (2S)-2-[[(2S)-2-Amino-5-(diaminomethylideneamino)pentanoyl]amino]-3-[(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-yl)sulfonyl]propanoic acid
EINECS	Contact for details

Quality Control

Our Cystargin is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. We adhere to relevant industry standards for fine chemicals and pharmaceutical intermediates, ensuring the material is suitable for research and development applications.

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 storing under an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (HPLC/MS)	Conforms
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Heavy Metals	≤ 10 ppm
Residual Solvents (GC)	Meets ICH guidelines

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