Description

(23E)-5,19-Epoxy-3β-β-D-Glucopyranosyloxy-5β-Cucurbita-6,23-Diene-25-Ol is a high-purity, specialized triterpenoid glycoside derived from natural sources. This compound is valued for its role as a key reference standard and active pharmaceutical ingredient (API) intermediate in advanced research and development. It is primarily sought by professionals in the pharmaceutical, nutraceutical, and life science sectors for applications in metabolic studies, anti-inflammatory research, and the synthesis of novel therapeutic agents.

Application

• Pharmaceutical Reference Standard: Used for the qualitative and quantitative analysis of herbal extracts and finished products in QC/QA laboratories.
• Active Pharmaceutical Ingredient (API) Intermediate: Serves as a critical building block in the synthesis of more complex therapeutic compounds.
• Nutraceutical & Dietary Supplement Research: Employed in the development and standardization of botanical supplements targeting metabolic health.
• Biochemical & Pharmacological Research: Utilized in in vitro and in vivo studies to investigate mechanisms of action related to its biological activity.
• Analytical Method Development: Acts as a pure calibrant for developing and validating HPLC, LC-MS, and other chromatographic methods.
• Cosmeceutical Ingredient Development: Investigated for potential skin-benefitting properties in high-end cosmetic formulations.

Basic Information

Product Name	(23E)-5,19-Epoxy-3β-β-D-Glucopyranosyloxy-5β-Cucurbita-6,23-Diene-25-Ol
CAS No.	81371-55-3
Molecular Formula	C36H58O8
Molecular Weight	618.85 g/mol
Synonyms	Momordicoside L; Cucurbitacin L 2-O-β-D-glucopyranoside; (23E)-5,19-Epoxycucurbita-6,23-diene-3β,25-diol 3-O-β-D-glucopyranoside; 3β-[(β-D-Glucopyranosyl)oxy]-5,19-epoxy-5β-cucurbita-6,23-dien-25-ol; Karavilagenin C glucoside
EINECS	Contact for details

Quality Control

Our (23E)-5,19-Epoxy-3β-β-D-Glucopyranosyloxy-5β-Cucurbita-6,23-Diene-25-Ol is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via IR and NMR, to ensure it meets the high standards required for research and pharmaceutical applications. A detailed Certificate of Analysis (COA) is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed in a dry environment to prevent degradation. For long-term storage, consider desiccants or an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals	≤ 20 ppm
Specific Rotation	Contact for details

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