Description

Alkannin CAS NO 23444-65-7 is a natural naphthoquinone pigment derived primarily from the roots of plants in the *Alkanna* and *Lithospermum* genera. This compound is valued for its distinctive colorant properties and its role as a key bioactive marker in herbal extracts and pharmaceutical research. It serves critical functions in the development of natural dyes, analytical standards, and botanical reference materials for industries focused on quality and traceability.

Application

• As a natural dye and colorant for textiles, cosmetics, and food products.
• As a reference standard and biomarker in the quality control of herbal extracts and traditional medicines.
• In pharmaceutical research for studying its historical and potential bioactive properties.
• As a chemical intermediate in the synthesis of specialized organic compounds.
• In analytical chemistry as a reagent or standard for method development and validation.
• For academic and R&D purposes in studies of natural product chemistry and phytochemistry.

Basic Information

Product Name	Alkannin
CAS No.	23444-65-7
Molecular Formula	C16H16O5
Molecular Weight	288.29 g/mol
Synonyms	Alkannin; (R)-5,8-Dihydroxy-2-(1-hydroxy-4-methylpent-3-en-1-yl)-1,4-naphthoquinone; Anchusa acid; Shikonin enantiomer; Anchusin; Dyer's Alkanet pigment; Alkanna tinctoria root pigment; 1,4-Naphthoquinone, 5,8-dihydroxy-2-[(1R)-1-hydroxy-4-methyl-3-pentenyl]-
EINECS	Contact for details

Quality Control

Our Alkannin is produced and tested under a rigorous quality management system. Each batch is analyzed to ensure identity, purity, and consistency, making it suitable for use as a reference material and in demanding applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment and is available upon request.

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 and should be handled accordingly to maintain stability.

Specification

Item	Specification
Appearance	Reddish-brown to dark purple powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
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.