Description

Laccaic Acid A CAS NO 15979-35-8 is a high-purity, naturally derived anthraquinone pigment primarily obtained from the lac insect (*Kerria lacca*). This compound is valued for its vibrant red color and stability, making it a sought-after natural alternative to synthetic dyes. It is essential for manufacturers in the food, cosmetic, and pharmaceutical industries seeking compliant, natural colorants for their products.

Application

• Natural Food Coloring: Used as a red colorant in beverages, confectionery, dairy products, and processed foods where synthetic dyes are restricted.
• Cosmetic & Personal Care: Incorporated into lipsticks, blushes, eyeshadows, and other color cosmetics as a stable, natural pigment.
• Pharmaceutical Coatings: Employed in the coating of tablets and capsules for brand identification and aesthetic appeal.
• Textile Dyeing: Serves as a natural dye for silk, wool, and other protein-based fibers, prized in artisanal and eco-friendly textile production.
• Biological Staining: Used in microscopy and histology as a specialized stain for cellular and tissue components in research settings.
• Industrial Inks & Coatings: Applied in the formulation of specialty inks, artist's colors, and coatings where a natural origin is preferred.

Basic Information

Product Name	Laccaic Acid A
CAS No.	15979-35-8
Molecular Formula	C26H19NO12
Molecular Weight	537.43 g/mol
Synonyms	Laccaic Acid; Lac Dye; Natural Red 25; CI 75450; Lac Color; Laccaic Acid A (major component); Laccalc Acid; 3,4,5,6-Tetrahydroxy-2-[(2-hydroxy-5-methyl-3,4-dioxo-1-cyclohexa-2,5-dien-1-yl)(2-hydroxy-4-methyl-5-oxo-2,5-dihydrofuran-3-yl)methyl]benzoic acid
EINECS	240-145-7

Quality Control

Our Laccaic Acid A is produced and tested to meet stringent quality standards suitable for sensitive applications. Each batch is analyzed to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting key parameters such as assay, heavy metals, and solvent residues are provided to support compliance with food grade (FCC) and cosmetic requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). The product is light-sensitive; prolonged exposure to direct light should be avoided to maintain color integrity and stability.

Specification

Item	Specification
Appearance	Red to dark red powder
Identification (HPLC/UV-Vis)	Conforms to standard
Assay (HPLC)	≥ 90.0% (Laccaic Acid A)
Loss on Drying	≤ 5.0 %
Ash Content	≤ 1.0 %
Heavy Metals (as Pb)	≤ 10 ppm
Arsenic (As)	≤ 3 ppm
Solvent Residues	Meets regulatory limits

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