Description

Reseda Luteola, Ext. is a natural botanical extract derived from the weld plant (*Reseda luteola*), a traditional source of a vibrant yellow dye. This extract is valued for its rich content of luteolin and other flavonoid compounds, which impart its characteristic color and potential bioactive properties. It serves as a key ingredient for manufacturers in the natural colorant, cosmetic, and nutraceutical industries seeking plant-based, sustainable solutions.

Application

• Natural Food & Beverage Colorant: Used to provide stable yellow to greenish-yellow hues in confectionery, beverages, dairy products, and baked goods.
• Cosmetic & Personal Care Formulations: Incorporated into skincare products, hair dyes, and soaps for natural coloring and potential antioxidant benefits.
• Textile Dyeing: Serves as a traditional and eco-friendly dye for wool, silk, and cotton, offering good lightfastness.
• Nutraceutical & Dietary Supplements: Utilized as a source of bioactive flavonoids like luteolin in supplement capsules and tablets.
• Artist's Colors & Inks: Employed in the production of natural pigments for watercolors, inks, and other artistic mediums.
• Historical & Cultural Artifact Restoration: Used in restoration projects to match original plant-based dye colors in textiles and artworks.

Basic Information

Product Name	Reseda Luteola, Ext.
CAS No.	90106-16-4
Molecular Formula	Complex mixture; Primary constituents include C15H10O6 (Luteolin)
Molecular Weight	Mixture; Luteolin: 286.24 g/mol
Synonyms	Weld Extract; Dyer's Rocket Extract; Yellow Weed Extract; Reseda Luteola Extract; Luteolin-rich Extract; Natural Yellow 2 (historical context); CI 75590 (Colour Index); *Reseda luteola* L. extract
EINECS	Contact for details

Quality Control

Our Reseda Luteola Extract is produced and tested to ensure consistent quality and performance. We offer various grades tailored to specific industry needs, from standard dyeing extracts to higher-purity versions for cosmetic and nutraceutical applications. Certificates of Analysis (COA) detailing key parameters such as luteolin content, color strength, and solvent residues are provided with each batch to guarantee compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from excessive heat and incompatible materials. Under these conditions, the product remains stable.

Specification

Item	Specification
Appearance	Yellow to brownish-yellow powder or paste
Identification (HPLC/FTIR)	Complies with standard for Reseda Luteola Extract
Assay (Total Flavonoids as Luteolin)	10% - 40% (Customizable)
Solvent Residues	Meets ICH guidelines or customer requirements
Heavy Metals (as Pb)	< 10 ppm
Loss on Drying	< 5.0%
Ash Content	< 2.0%
Microbiological Analysis	Meets standard limits for intended use

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