Description

Cck-33 (Human) is a synthetic peptide sequence corresponding to a fragment of human cholecystokinin. This high-purity biochemical is critical for research and development in metabolic and neurological studies, where precise molecular tools are required. It serves as an essential reference standard and active ingredient for pharmaceutical R&D, diagnostic assay development, and advanced life science research targeting the cholecystokinin receptor pathway.

Application

• Pharmaceutical Research & Development: Used as a reference standard and active pharmaceutical ingredient (API) intermediate in the development of drugs targeting metabolic disorders and central nervous system (CNS) conditions.
• Diagnostic Assay Development: Serves as a critical calibrant and antigen in the production of immunoassays and ELISA kits for measuring cholecystokinin levels in clinical and research settings.
• Biochemical & Pharmacological Studies: Employed in in vitro and in vivo studies to investigate receptor binding affinity, signal transduction pathways, and the physiological role of cholecystokinin.
• Academic & Institutional Research: A key reagent for universities and research institutes studying gastroenterology, satiety signaling, anxiety, and pain modulation.
• Peptide Synthesis & Custom Manufacturing: Used as a building block or template for the synthesis of longer peptide chains or analogs with modified biological activity.

Basic Information

Product Name	Cck-33 (Human)
CAS No.	96827-04-2
Molecular Formula	C186H286N50O57S
Molecular Weight	~3918.6 g/mol
Synonyms	Cholecystokinin (26-58), human; CCK-33; CCK 33; CCK (26-58); Pancreozymin; CCK-PZ; Sincalide precursor; Cholecystokinin fragment 26-58
EINECS	Contact for details

Quality Control

Every batch of Cck-33 (Human) is manufactured and tested under strict quality management systems. We provide comprehensive analytical documentation to support your regulatory and research requirements. Certificates of Analysis (COA) detailing purity, identity, and peptide content are available for each lot. Our quality commitment ensures compliance with the high standards expected in pharmaceutical and research applications.

Storage

Preserve in a tightly closed container, protected from light. Store at -20°C or below. This product is hygroscopic (moisture-sensitive). Allow the vial to reach room temperature in a desiccator before opening to prevent condensation and hydrolysis. For long-term storage, keep desiccated at -20°C.

Specification

Item	Specification
Appearance	White to off-white lyophilized powder
Identification (HPLC & MS)	Conforms to reference standard
Purity (HPLC)	≥ 95.0%
Peptide Content	≥ 80.0% (by weight)
Single Impurity (HPLC)	≤ 1.0%
Water Content (KF)	≤ 5.0%
Acetate Content (HPIC)	≤ 10.0%
Biological Activity	Assayed and reported per COA

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