Description

H-Cys-Ser-Cys-Lys-Asp-Met-Thr-Asp-Lys-Glu-Cys-Leu-Asn-Phe-Cys-His-Gln-Asp-Val-Ile-Trp-Oh is a synthetic peptide with the CAS registry number 126738-34-9, designed for high-purity research and development applications. This compound is critical for advanced biochemical studies, including structure-activity relationship (SAR) analysis and as a reference standard in analytical method development. It is primarily utilized by pharmaceutical R&D laboratories, biotechnology companies, and academic institutions engaged in peptide science and therapeutic discovery.

Application

• Pharmaceutical Research & Development: Used as a key intermediate or reference standard in the discovery and optimization of novel peptide-based therapeutics.
• Biochemical Assay Development: Serves as a critical component for calibrating analytical methods such as HPLC and Mass Spectrometry in quality control labs.
• Structure-Activity Relationship (SAR) Studies: Essential for investigating the relationship between peptide structure and biological function to guide drug design.
• Academic & Institutional Research: Employed in university and institutional labs for fundamental research in biochemistry, molecular biology, and medicinal chemistry.
• Bioconjugation & Probe Synthesis: Acts as a scaffold for creating labeled probes or conjugates used in diagnostic assays and imaging studies.
• Peptide Library Construction: Used as a building block in the synthesis of combinatorial peptide libraries for high-throughput screening.

Basic Information

Product Name	H-Cys-Ser-Cys-Lys-Asp-Met-Thr-Asp-Lys-Glu-Cys-Leu-Asn-Phe-Cys-His-Gln-Asp-Val-Ile-Trp-Oh
CAS No.	126738-34-9
Molecular Formula	C106H160N30O31S4
Molecular Weight	2450.84 g/mol
Synonyms	CAS 126738-34-9; H-Cys-Ser-Cys-Lys-Asp-Met-Thr-Asp-Lys-Glu-Cys-Leu-Asn-Phe-Cys-His-Gln-Asp-Val-Ile-Trp-OH; Cys-Ser-Cys-Lys-Asp-Met-Thr-Asp-Lys-Glu-Cys-Leu-Asn-Phe-Cys-His-Gln-Asp-Val-Ile-Trp; Synthetic Peptide 126738-34-9; [Cys1, Cys3, Cys11, Cys15]-Peptide; H-CSCKDM TDKECLNFCHQDV IW-OH (Single-letter abbreviation); TFA salt of H-Cys-Ser-Cys-Lys-Asp-Met-Thr-Asp-Lys-Glu-Cys-Leu-Asn-Phe-Cys-His-Gln-Asp-Val-Ile-Trp-Oh (possible form)
EINECS	Contact for details

Quality Control

Our H-Cys-Ser-Cys-Lys-Asp-Met-Thr-Asp-Lys-Glu-Cys-Leu-Asn-Phe-Cys-His-Gln-Asp-Val-Ile-Trp-Oh is manufactured under strict quality systems to ensure batch-to-batch consistency and high purity for research applications. Each lot undergoes comprehensive analytical characterization, including HPLC purity analysis, mass spectrometry (MS) for identity confirmation, and determination of residual solvents and moisture content. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting all critical quality attributes.

Storage

Preserve in a tightly closed container, protected from light. Store at -20°C or below in a desiccated environment to maintain stability. This material is hygroscopic (moisture-sensitive) and easily oxidized; for long-term storage, consider under an inert atmosphere such as argon or nitrogen.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (HPLC)	Retention time corresponds to reference standard
Identification (MS)	Mass spectrum conforms to theoretical molecular weight
Purity (HPLC)	≥ 95.0%
Related Substances (HPLC)	Total impurities ≤ 5.0%
Water Content (KF)	≤ 5.0%
Peptide Content	≥ 80.0% (by weight)
Acetate/TFA Content (HPLC)	Reported on COA

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