Description

Cholecystokinin (26-33) is a bioactive peptide fragment of the gastrointestinal hormone cholecystokinin. This compound is a critical research tool for studying pancreatic secretion, gallbladder contraction, and satiety signaling pathways in the central nervous system. It is essential for pharmaceutical R&D, academic research, and diagnostic development in the fields of gastroenterology, neuroscience, and metabolic disorders.

Application

• Neuroscientific Research: Used as a selective CCK-B receptor agonist to study anxiety, panic disorders, memory, and satiety mechanisms in the brain.
• Gastrointestinal Physiology Studies: Investigates the regulation of pancreatic enzyme secretion, gallbladder motility, and gastric emptying.
• Pharmaceutical Development: Serves as a reference standard and active ingredient in preclinical studies for developing therapeutics targeting digestive and CNS disorders.
• Biochemical Assays: Utilized in receptor binding assays, functional cell-based tests, and signal transduction pathway analysis.
• Diagnostic Reagent Manufacturing: A key component in the production of immunoassay kits and other diagnostic tools for research purposes.

Basic Information

Product Name	Cholecystokinin (26-33)
CAS No.	80980-81-0
Molecular Formula	C49H62N10O16S
Molecular Weight	1079.14 g/mol
Synonyms	CCK-8; Cholecystokinin Octapeptide; Sincalide; CCK (26-33), sulfated; Asp-Tyr(SO3H)-Met-Gly-Trp-Met-Asp-Phe-NH2; SQ 19,844; CCK-8S; CCK Octapeptide
EINECS	Contact for details

Quality Control

Our Cholecystokinin (26-33) is manufactured under stringent quality systems. Each batch undergoes comprehensive analytical testing including HPLC for purity, mass spectrometry for identity confirmation, and amino acid analysis. A detailed Certificate of Analysis (COA) is provided with every shipment, ensuring traceability and compliance with research-grade specifications.

Storage

Preserve in a tightly closed container, protected from light. Store at -20°C or below in a dry environment. The product is hygroscopic (moisture-sensitive). For long-term storage, keep desiccated. Allow the vial to reach room temperature before opening to minimize moisture uptake.

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%
Water Content (KF)	≤ 8.0%
Peptide Content	≥ 70.0%
Solubility	Soluble in water, dilute acetic acid

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