Description

Cyclo(Ile-Leu) CAS NO 91741-17-2 is a high-purity cyclic dipeptide, also known as a diketopiperazine (DKP), formed from the amino acids Isoleucine and Leucine. This compound serves as a critical pharmaceutical intermediate and a versatile research chemical for studying peptide conformation and bioactivity. It is essential for manufacturers and researchers in the pharmaceutical, biotechnology, and academic research sectors developing novel therapeutics and biochemical tools.

Application

• Pharmaceutical Intermediate: Used in the synthesis of more complex peptide-based drugs and active pharmaceutical ingredients (APIs).
• Biochemical Research: Serves as a model compound for studying the structure, stability, and biological activity of cyclic peptides and diketopiperazines.
• Medicinal Chemistry: Acts as a scaffold or building block for designing new drug candidates with improved metabolic stability and bioavailability.
• Reference Standard: Employed as a high-purity analytical standard in quality control laboratories for method development and validation.
• Cosmetic Peptide Synthesis: Potential use as a precursor in the development of bioactive peptides for cosmetic and dermatological applications.

Basic Information

Product Name	Cyclo(Ile-Leu)
CAS No.	91741-17-2
Molecular Formula	C12H22N2O2
Molecular Weight	226.32 g/mol
Synonyms	Cyclo(L-Isoleucyl-L-leucyl); Cyclo(IL); 3-Isobutyl-6-(sec-butyl)-2,5-piperazinedione; 3-Isobutyl-6-sec-butylpiperazine-2,5-dione; L-Isoleucyl-L-leucine anhydride; Isoleucine-leucine diketopiperazine; Diketopiperazine (Ile-Leu); DKPIle-Leu
EINECS	Contact for details

Quality Control

Our Cyclo(Ile-Leu) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and spectroscopic identification (IR, NMR), to ensure it meets stringent specifications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and compliance with your research or production requirements.

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); ensure the container is kept tightly sealed in a low-humidity environment to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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