Description

Cholecystokinin Precursor C-Terminal Pentapeptide is a synthetic bioactive peptide fragment derived from the C-terminus of the cholecystokinin (CCK) precursor protein. This compound is of significant value in biochemical and pharmacological research for studying the structure, function, and processing of the CCK hormone. It serves as a critical reference standard and intermediate for researchers and manufacturers in the pharmaceutical and life science sectors, particularly those focused on neurobiology, gastrointestinal physiology, and peptide-based drug discovery.

Application

• Biochemical Research: Used as a reference standard in studies investigating the biosynthesis, processing, and degradation pathways of cholecystokinin.
• Pharmaceutical Development: Serves as a key intermediate or starting material in the synthesis of longer CCK-related peptides for therapeutic candidate screening.
• Diagnostic Reagent Production: Employed in the development and calibration of immunoassays (e.g., ELISA, RIA) for detecting CCK or its precursors in biological samples.
• Neuroscience Studies: Applied in receptor binding assays and functional studies to explore the role of CCK in the central and peripheral nervous systems.
• Academic & Institutional Research: A vital tool for universities and research institutes conducting fundamental research on peptide hormones and neuropeptides.

Basic Information

Product Name	Cholecystokinin Precursor C-Terminal Pentapeptide
CAS No.	114942-10-8
Molecular Formula	C30H45N7O9S
Molecular Weight	679.8 g/mol
Synonyms	CCK-5; Cholecystokinin (114-118), human; CCK Precursor Fragment (114-118); H-Asp-Tyr(SO3H)-Met-Gly-Trp-NH2; Asp-Tyr(SO3H)-Met-Gly-Trp-amide; CCK Pentapeptide; Sulfated CCK-5; Cholecystokinin pentapeptide (sulfated)
EINECS	Contact for details

Quality Control

Our Cholecystokinin Precursor C-Terminal Pentapeptide is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, mass spectrometry (MS) for identity confirmation, and amino acid analysis (AAA). We provide full traceability and documentation. Certificates of Analysis (COA) detailing purity, assay, and impurity profiles are available upon request.

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). Allow the vial to equilibrate to room temperature in a desiccator before opening to minimize moisture absorption.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (HPLC/MS)	Conforms to reference standard
Purity (HPLC)	≥ 95.0%
Single Impurity (HPLC)	≤ 2.0%
Peptide Content	≥ 80.0%
Water Content (KF)	≤ 5.0%
Acetate Content (HPLC)	≤ 10.0%

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