Trans-Resveratrol 99%

Trans-Resveratrol 99% is a concentrated stilbenoid polyphenol ingredient identified by CAS 501-36-0. Unlike conventional botanical extracts defined by an extract ratio or broad phytochemical profile, this material is characterized primarily by the purified trans isomer, making compound identity, assay, isomer profile, and formulation behavior central to ingredient evaluation.

Essencefield supplies a ≥99% grade analyzed by HPLC for supplement development, nutritional formulations, and commercial sourcing projects. Its concentrated composition supports low-inclusion applications, while poor aqueous solubility and sensitivity to light remain important considerations during processing, delivery-system selection, and finished-product development.

SKU: BOT-PHY-0012 Categories: Phytochemicals, Polyphenols & Phenolic Acids Tags: Antioxidant Support, Dietary Supplements, Polyphenols, Resveratrol, Stilbenes

Ingredient Profile & Common Uses

Resveratrol belongs to the stilbenoid family of polyphenolic compounds and occurs naturally in several plant species. The commercial 99% material represents the trans, or (E), geometric isomer and has the molecular formula C14H12O3 with a molecular weight of 228.24 g/mol. At this concentration, it is more accurately treated as a purified phytochemical than as a conventional ratio extract.

The concentrated grade is intended for formulations that require a defined amount of the target compound without the larger proportion of botanical solids associated with lower-assay extracts. Commercial evaluation therefore focuses on compound concentration and isomer identity rather than extract ratio. This grade architecture is particularly relevant for buyers comparing purified ingredients with botanical resveratrol preparations of substantially lower active content.

In formulation, the material is used across concentrated supplement systems, nutritional premixes, and specialized delivery formats. Poor water solubility can limit straightforward incorporation into aqueous systems, while light exposure can alter the trans/cis balance. Dry formulations are generally easier to develop, whereas liquids and dispersed systems require closer attention to wetting, precipitation, dispersion, and protection from light.

Application Areas

Capsules & Tablets

The concentrated grade is suitable for capsule and tablet products where formulators require a defined resveratrol input without introducing substantial amounts of lower-assay botanical material.

Nutritional Powder Blends

The powder can be incorporated into multicomponent premixes and dry supplement systems. Low inclusion rates make premixing and blend uniformity important during scale-up.

Gummies & Chewable Systems

Gummy and chewable formats require evaluation of ingredient distribution, flavor interaction, processing conditions, and physical stability within the selected matrix.

Liquid & Advanced Delivery Systems

Liquid, emulsified, liposomal, complexed, and other advanced delivery formats may be evaluated where improved dispersion or incorporation into aqueous systems is required.

Cosmetic Formulation Development

The compound is also evaluated in topical and cosmetic formulations, where solvent compatibility, dispersion, environmental exposure, and finished-product stability influence formulation design.

Typical Specifications

Parameter	Specification / Reference
Product Name	Trans-Resveratrol 99%
Compound Name	trans-Resveratrol
Chemical Name	5-[(E)-2-(4-hydroxyphenyl)ethenyl]benzene-1,3-diol
Common Chemical Name	3,5,4′-Trihydroxystilbene
CAS Number	501-36-0
PubChem CID	445154
Molecular Formula	C14H12O3
Molecular Weight	228.24 g/mol
Chemical Class	Stilbenoid polyphenol
Geometric Form	trans / (E)
Ingredient Type	Purified phytochemical
Product Form	Powder
Primary Specification	≥99% trans-Resveratrol
Analytical Method	HPLC
Water Behavior	Poorly soluble in water
Light Behavior	Susceptible to trans-to-cis photoisomerization

Compound Identity & Purity

For a concentrated resveratrol ingredient, the key analytical question is not simply whether resveratrol is present, but which geometric isomer is being quantified and how the declared assay is determined. The trans form is the principal commercial identity associated with CAS 501-36-0, while cis-resveratrol represents a distinct geometric isomer.

A 99% specification describes compound concentration rather than an extract ratio. HPLC provides a practical analytical approach because it can quantify the principal component while separating related chromatographic peaks. This is more informative for a purified material than nonspecific total-polyphenol measurements, which do not establish individual compound identity.

The trans/cis distinction also has technical relevance. Light exposure can promote photoisomerization, changing the isomer profile even when the total amount of resveratrol remains similar. Analytical qualification and controlled handling therefore work together when maintaining the intended compound profile.

Technical & Quality Considerations

For supplier qualification, QA teams should distinguish assay from chromatographic purity and review whether the analytical method adequately characterizes the target trans isomer and related components. A nominal purity value alone provides less information than an assay supported by appropriate chromatographic separation, particularly for concentrated phytochemical ingredients.

The material is not freely soluble in water. This has limited impact in many dry systems but becomes important in liquids, suspensions, gels, and other dispersed formats, where wetting, dissolution, sedimentation, or precipitation can affect finished-product performance. Light exposure is another formulation variable because photoisomerization can alter the trans/cis ratio during processing or storage.

During scale-up, low-dose ingredients require careful distribution throughout the batch. Premixing with a compatible portion of the formulation can improve uniformity before final blending, capsule filling, tableting, or powder packing. For liquid and advanced delivery systems, R&D teams should separately evaluate solvent selection, emulsification, encapsulation, particle engineering, precipitation risk, and physical stability rather than assuming that standard powder will behave like a purpose-designed dispersible grade.

Packaging & Commercial Supply

Essencefield supports product evaluation, formulation trials, commercial orders, and ongoing ingredient supply. Packaging, storage, and shipping arrangements are determined by product characteristics, order quantity, stability requirements, and destination-market needs.

Supply Item	General Information
Sample	Available upon request for formulation, testing, and supplier evaluation
Order Quantities	100 g · 1 kg · 5 kg · 25 kg · 100 kg · 500 kg · Bulk
Sample Lead Time	Typically 5–7 days after sample confirmation
Production Lead Time	Typically 15–30 days after order and specification confirmation
Packaging	Suitable protective inner packaging with bags, cartons, drums, or other appropriate outer packaging
Storage	Store in tightly sealed, suitable protective packaging in a cool, dry environment. Protect from moisture, heat, and direct sunlight. Specific storage conditions follow the approved product specification.
Documentation	COA · Product Specification · TDS · SDS · Applicable declarations (as applicable)

Final order quantities, lead times, packaging, documentation, and shipping arrangements are confirmed according to the selected product and commercial requirements.