Description

Viscumneoside Iii CAS NO 118985-27-6 is a specific, high-purity flavonoid glycoside isolated from plants of the *Viscum* genus, such as mistletoe. This compound is of significant interest for its potential bioactive properties and serves as a critical reference standard for phytochemical research and quality control. It is primarily utilized by researchers and manufacturers in the pharmaceutical, nutraceutical, and botanical extract industries who require precise analytical markers for product development and standardization.

Application

• Pharmaceutical Reference Standard: Serves as a certified reference material (CRM) for the identification and quantification of active components in herbal drug preparations and quality control assays.
• Bioactivity Research: Used in in vitro and in vivo studies to investigate potential pharmacological effects, including antioxidant, anti-inflammatory, or immunomodulatory activities.
• Botanical Extract Standardization: Acts as a key marker compound for the standardization and quality assurance of mistletoe extracts and related herbal supplements to ensure batch-to-batch consistency.
• Analytical Method Development: Employed in the development and validation of analytical methods, such as HPLC, UPLC, and LC-MS, for the precise analysis of complex plant matrices.
• Natural Product Chemistry: Used as a starting material or intermediate for the semi-synthesis of novel derivatives in medicinal chemistry research programs.

Basic Information

Product Name	Viscumneoside Iii
CAS No.	118985-27-6
Molecular Formula	C35H46O19
Molecular Weight	770.73 g/mol
Synonyms	Viscumneoside III; 3,4',5-Trihydroxy-3',7-dimethoxyflavone 4'-O-[α-L-rhamnopyranosyl-(1→3)]-β-D-glucopyranoside; Quercetin 4'-O-[α-L-rhamnopyranosyl-(1→3)]-β-D-glucopyranoside, 3',7-dimethyl ether; Mistletoe flavonoid glycoside; Contact for additional synonyms.
EINECS	Contact for details

Quality Control

Our Viscumneoside Iii is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity verification and spectroscopic methods (NMR, MS) for structural confirmation, to ensure it meets the high standards required for research and development. A detailed Certificate of Analysis (COA) specifying purity, identity, and related substances is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C. This product is hygroscopic (moisture-sensitive) and light-sensitive (store away from light). For long-term storage, consider desiccation and storage under inert atmosphere to maintain stability.

Specification

Item	Specification
Appearance	Off-white to light yellow powder
Identification (HPLC)	Retention time corresponds to reference standard
Identification (IR)	Spectrum matches reference
Purity (HPLC)	≥95.0%
Loss on Drying	≤5.0%
Residue on Ignition	≤1.0%
Heavy Metals	≤20 ppm

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