Description

L-Arg-L-Arg-L-Cys-L-Ile-L-Cys-L-Thr-L-Thr-L-Arg-L-Thr-L-Cys-L-Arg-L-Phe-L-Pro-L-Tyr-L-Arg-L-Arg-L-Leu-Gly-L-Thr-L-Cys-L-Ile-L-Phe-L-Gln-L-Asn-L-Arg-L-Val-L-Tyr-L-Thr-L-Phe-L-Cys-L-Cys-OH is a synthetic peptide with the CAS number 111439-82-8, designed for high-purity research and development applications. This compound is critical for advanced biochemical studies, particularly in the investigation of protein-protein interactions and enzyme inhibition mechanisms. It serves as a key intermediate or reference standard for pharmaceutical R&D teams, biotechnology firms, and academic research institutions focused on peptide-based therapeutics and diagnostic tools.

Application

• Pharmaceutical Research & Development: As a reference standard or active pharmaceutical ingredient (API) intermediate in the development of novel peptide-based drugs.
• Biochemical Assay Development: For use in high-throughput screening (HTS) assays to identify and characterize biological activity or inhibition.
• Proteomics and Structural Biology: As a tool compound for studying protein folding, stability, and interaction with other biomolecules.
• Diagnostic Reagent Manufacturing: Potential use as a key component in the synthesis of reagents for clinical diagnostics and immunoassays.
• Academic Research: For fundamental studies in biochemistry, molecular biology, and medicinal chemistry within university and institutional laboratories.
• Peptide Library Synthesis: As a building block for the construction of complex peptide libraries used in drug discovery.

Basic Information

Product Name	L-Arg-L-Arg-L-Cys-L-Ile-L-Cys-L-Thr-L-Thr-L-Arg-L-Thr-L-Cys-L-Arg-L-Phe-L-Pro-L-Tyr-L-Arg-L-Arg-L-Leu-Gly-L-Thr-L-Cys-L-Ile-L-Phe-L-Gln-L-Asn-L-Arg-L-Val-L-Tyr-L-Thr-L-Phe-L-Cys-L-Cys-OH
CAS No.	111439-82-8
Molecular Formula	C164H268N58O39S8
Molecular Weight	3816.7 g/mol (theoretical)
Synonyms	Arg-Arg-Cys-Ile-Cys-Thr-Thr-Arg-Thr-Cys-Arg-Phe-Pro-Tyr-Arg-Arg-Leu-Gly-Thr-Cys-Ile-Phe-Gln-Asn-Arg-Val-Tyr-Thr-Phe-Cys-Cys-OH; H-Arg-Arg-Cys-Ile-Cys-Thr-Thr-Arg-Thr-Cys-Arg-Phe-Pro-Tyr-Arg-Arg-Leu-Gly-Thr-Cys-Ile-Phe-Gln-Asn-Arg-Val-Tyr-Thr-Phe-Cys-Cys-OH; [Arg2,3,8,11,15,16,26,Cys3,5,10,20,31,32,Ile4,21,Thr6,7,9,19,29,Phe12,22,30,Pro13,Tyr14,28,Leu17,Gly18,Gln23,Asn24,Val27]-Peptide; Linear 32-mer peptide; Custom synthetic peptide 111439-82-8.
EINECS	Contact for details

Quality Control

Our L-Arg-L-Arg-L-Cys-L-Ile-L-Cys-L-Thr-L-Thr-L-Arg-L-Thr-L-Cys-L-Arg-L-Phe-L-Pro-L-Tyr-L-Arg-L-Arg-L-Leu-Gly-L-Thr-L-Cys-L-Ile-L-Phe-L-Gln-L-Asn-L-Arg-L-Val-L-Tyr-L-Thr-Phe-L-Cys-L-Cys-OH is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, MS for identity confirmation, and amino acid analysis. Certificates of Analysis (COA) detailing all specifications and test results are provided to ensure traceability and compliance with your research or development protocols.

Storage

Preserve in a tightly closed container, protected from light. Store at -20°C or below in a dry environment. This product is hygroscopic (moisture-sensitive). For long-term storage, consider desiccant and under an inert atmosphere. Allow the vial to warm to room temperature in a desiccator before opening to prevent condensation and moisture uptake.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (HPLC/MS)	Conforms to reference
Purity (HPLC)	≥ 95.0%
Single Impurity (HPLC)	≤ 1.0%
Amino Acid Composition	Within ±10% of theoretical
Water Content (KF)	≤ 5.0%
Peptide Content	≥ 80.0%

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