Description

Gomisin S CAS NO 119239-49-5 is a high-purity, bioactive lignan compound isolated from the *Schisandra* genus of plants. This compound is valued for its role as a key reference standard and active pharmaceutical ingredient (API) in research and development. It is primarily sought by the pharmaceutical, nutraceutical, and advanced research sectors for applications in metabolic and hepatoprotective studies, as well as in the formulation of standardized botanical extracts.

Application

• Pharmaceutical Reference Standard: Used for the qualitative and quantitative analysis (HPLC, LC-MS) of herbal medicines and extracts containing Schisandra.
• Active Pharmaceutical Ingredient (API) Intermediate: Serves as a critical building block or marker compound in the development of hepatoprotective and metabolic disorder therapeutics.
• Nutraceutical & Dietary Supplement Formulation: Incorporated into standardized botanical supplements targeting liver health and antioxidant support.
• Biomedical & Pharmacological Research: Employed in *in vitro* and *in vivo* studies to investigate mechanisms of action related to cytochrome P450 enzyme modulation and cellular protection.
• Quality Control in Herbal Extract Manufacturing: Acts as a certified marker to ensure batch-to-batch consistency and potency of Schisandra-based products.

Basic Information

Product Name	Gomisin S
CAS No.	119239-49-5
Molecular Formula	C28H34O9
Molecular Weight	514.57 g/mol
Synonyms	Gomisin S; Schisantherin H; Schisandrin H; (+)-Gomisin S; Wuweizisu S; Benzo[3,4]cycloocta[1,2-f][1,3]benzodioxole-5,6-diol, 5,6,7,8-tetrahydro-1,2,3,13-tetramethoxy-6,7-dimethyl-, (6R,7S,13aS)-; Lignan F
EINECS	Contact for details

Quality Control

Our Gomisin S is manufactured under strict quality management systems. Each batch is subjected to comprehensive analytical testing, including HPLC for purity and identity confirmation (IR, NMR), to ensure it meets the stringent requirements for research and pharmaceutical applications. A Certificate of Analysis (COA) detailing all specifications 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). This product is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept tightly sealed in a desiccated environment away from direct light exposure to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time corresponds to reference standard
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
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.