Description

Cleistanthin is a bioactive natural product belonging to the class of lignan glycosides, isolated from plants of the genus *Cleistanthus*. This compound is of significant interest for its unique structural framework and associated biological properties, making it a valuable reference standard and research chemical. It is primarily utilized by researchers and developers in the pharmaceutical, biotechnology, and natural product chemistry sectors for applications in drug discovery, phytochemical analysis, and biochemical studies.

Application

• Pharmaceutical Research & Development: Serves as a high-purity reference standard for analytical method development, validation, and quality control in the study of plant-derived therapeutics.
• Bioactivity Screening: Used as a lead compound or probe in pharmacological assays to investigate potential biological activities, including cytotoxic or enzyme-inhibitory effects.
• Natural Product Chemistry: Employed as a benchmark in the isolation, purification, and structural elucidation of related lignan compounds from botanical sources.
• Academic & Institutional Research: A key material for university and institutional labs conducting studies in medicinal chemistry, phytochemistry, and pharmacognosy.
• Biochemical Pathway Studies: Utilized to explore and understand specific biochemical interactions and metabolic pathways within biological systems.
• Analytical Method Development: Acts as a critical standard for developing and calibrating advanced analytical techniques such as HPLC, LC-MS, and NMR for compound identification and quantification.

Basic Information

Product Name	Cleistanthin
CAS No.	25047-48-7
Molecular Formula	C34H46O18
Molecular Weight	742.72 g/mol
Synonyms	Cleistanthin A; Cleistanthin-A; NSC 168089; 5-[(2S,3R,4S,5S,6R)-4,5-Dihydroxy-6-(hydroxymethyl)-3-[(2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxyoxan-2-yl]oxy-2-(4-hydroxy-3,5-dimethoxyphenyl)-7-methoxy-3-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxychromen-4-one
EINECS	Contact for details

Quality Control

Our Cleistanthin is produced and handled under strict quality management protocols to ensure batch-to-batch consistency and high purity suitable for research applications. Each lot is subjected to comprehensive analytical testing, including identification by spectroscopic methods (NMR, IR) and purity assessment by HPLC. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting the specific results for your quality assurance records.

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) and should be handled in a dry environment to prevent degradation. For long-term storage, consider desiccant use.

Specification

Item	Specification
Appearance	Off-white to light yellow powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%

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