Description

(2S, 4'S, 8'S)-α-Tocopherol is a specific stereoisomer of natural-source vitamin E, distinguished by its high biological activity. This compound is critical for applications requiring the most potent antioxidant and nutritional efficacy available. It is essential for manufacturers in the pharmaceutical, premium nutraceutical, and high-end cosmetic industries seeking superior stability and bioavailability in their formulations.

Application

• Pharmaceutical Formulations: Used as an active pharmaceutical ingredient (API) in prescription and over-the-counter medications for vitamin E deficiency and as a stabilizing antioxidant.
• High-Potency Nutraceuticals & Dietary Supplements: A key ingredient in softgel capsules, tablets, and liquid supplements targeting premium health markets.
• Advanced Cosmetic & Skincare Products: Incorporated into anti-aging serums, creams, and lotions for its potent antioxidant properties that protect skin from oxidative stress.
• Functional Foods & Beverages: Used for fortification in oils, dairy alternatives, and health drinks to enhance nutritional value and shelf-life.
• Animal Nutrition (Premiums Grades): Added to feed for livestock, poultry, and pets to support immune function and reproductive health.
• Biochemical Research & Reference Standards: Serves as a high-purity standard in analytical laboratories and life science research.

Basic Information

Item	Details
Product Name	(2S, 4'S, 8'S)-α-Tocopherol
CAS No.	77171-97-2
Molecular Formula	C29H50O2
Molecular Weight	430.71 g/mol
Synonyms	d-α-Tocopherol; RRR-α-Tocopherol; Natural Vitamin E; (2R,4'R,8'R)-α-Tocopherol (enantiomer); 5,7,8-Trimethyltocol; 3,4-Dihydro-2,5,7,8-tetramethyl-2-(4,8,12-trimethyltridecyl)-2H-1-benzopyran-6-ol; Vitamin E (natural form); E307
EINECS	Contact for details

Quality Control

Our (2S, 4'S, 8'S)-α-Tocopherol is produced and tested under strict quality management systems. We ensure compliance with relevant pharmacopeial standards such as USP/EP for pharmaceutical applications and FCC for food-grade requirements. Each batch is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. Certificates for REACH, FDA, and Kosher/Halal status are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen) in a cool, dry place at 2-8°C for long-term stability. For short-term use, storage at 15-25°C is acceptable. This product is easily oxidized (store under inert atmosphere) and light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Clear, pale yellow to brownish viscous oil
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 96.0%
Specific Rotation	+0.20° to +0.30° (at 20°C)
Heavy Metals	≤ 10 ppm
Residual Solvents	Complies with ICH guidelines

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