Description

Steviol-19-o-Glucoside is a specific glycosylated derivative of steviol, a key intermediate and reference standard in the analysis of stevia sweeteners. This compound matters for its role in ensuring the purity, consistency, and regulatory compliance of high-intensity natural sweeteners derived from the *Stevia rebaudiana* plant. It is essential for quality control laboratories, research institutions, and manufacturers in the food, beverage, and nutraceutical industries who require precise analytical standards for product development and certification.

Application

• Analytical Reference Standard: Primary use as a high-purity standard for HPLC, LC-MS, and other chromatographic methods to quantify and qualify steviol glycoside profiles in raw materials and finished products.
• Food & Beverage R&D: Used in research to study the metabolic pathways, stability, and synergistic effects of specific steviol glycosides in sweetener formulations.
• Quality Assurance & Control: Critical for in-house QC laboratories to verify the identity and purity of stevia extracts, ensuring they meet supplier specifications and food safety regulations.
• Nutraceutical Standardization: Employed in the standardization of dietary supplements that utilize stevia extracts, guaranteeing labeled potency and consistency.
• Regulatory Compliance & Method Development: Supports method validation for compliance with international standards (e.g., JECFA, FCC, USP) and the development of new analytical protocols.
• Academic & Pharmaceutical Research: Serves as a reagent in scientific studies investigating the pharmacological properties, bioavailability, and health impacts of individual steviol glycosides.

Basic Information

Product Name	Steviol-19-o-Glucoside
CAS No.	1185737-16-9
Molecular Formula	C26H42O9
Molecular Weight	498.61 g/mol
Synonyms	19-O-β-D-Glucopyranosyl-13-hydroxykaur-16-en-19-oic acid; Steviol 19-O-glucoside; Steviol 19-O-β-D-glucoside; 19-Glucosyl Steviol; 19-O-Glucosylsteviol; (4α)-13-Hydroxykaur-16-en-19-oic acid 19-O-β-D-glucopyranosyl ester; A potential reference compound for stevia analysis.
EINECS	Contact for details

Quality Control

Our Steviol-19-o-Glucoside is produced and handled under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation (IR, NMR), to ensure it meets the high standards required for use as a reference material. A comprehensive Certificate of Analysis (COA) detailing batch-specific results is provided with every shipment. We support compliance with relevant pharmacopeial and food-grade standards.

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); ensure the container is sealed tightly after each use to prevent absorption of atmospheric moisture, which may affect stability and purity.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Residue on Ignition	≤ 0.5%
Heavy Metals	≤ 20 ppm

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