Description

Dopa Melanin CAS NO 63194-25-2 is a high-purity, synthetic melanin pigment derived from the oxidative polymerization of L-DOPA (L-3,4-dihydroxyphenylalanine). This specialized biopolymer is valued for its exceptional photoprotective, antioxidant, and free radical scavenging properties, making it a critical functional ingredient in advanced formulations. It is primarily sought by manufacturers in the cosmetics, biomedical research, and high-performance materials sectors seeking natural-mimicking, multifunctional additives.

Application

• Cosmetics & Skincare: As a key active ingredient in sunscreens, anti-aging serums, and protective creams for its natural UV-absorbing and antioxidant capabilities.
• Biomedical Research: Utilized as a model compound in studies of melanogenesis, neuromelanin, and oxidative stress, as well as in the development of bio-inspired materials.
• Functional Materials: Incorporated into coatings, films, and polymers to enhance UV stability, provide electrical conductivity, or add biocompatibility.
• Hair Care Products: Used in formulations aimed at protecting hair from photodamage or in research related to hair pigmentation.
• Nutraceuticals: Investigated for potential use in dietary supplements for its radical scavenging activity, though application-specific regulatory guidance must be followed.

Basic Information

Item	Detail
Product Name	Dopa Melanin
CAS No.	63194-25-2
Molecular Formula	(C9H9NO4)n
Molecular Weight	Polymer - Variable
Synonyms	DOPA-Melanin; L-DOPA Melanin; Synthetic Eumelanin; Poly(5,6-dihydroxyindole); Poly(DHI); Poly(5,6-dihydroxyindole-2-carboxylic acid); Poly(DHICA); Melanin from L-DOPA; 5,6-Dihydroxyindole Melanin
EINECS	Contact for details

Quality Control

Our Dopa Melanin is produced under stringent quality management protocols. Each batch is characterized to ensure consistent polymer properties, including spectral profile and functional activity. Certificates of Analysis (COA) are provided, detailing key parameters such as identification, assay, and impurity profiles. We support compliance with relevant guidelines for research and cosmetic ingredient use.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain stability and efficacy.

Specification

Item	Specification
Appearance	Dark brown to black powder
Identification (IR)	Conforms to reference spectrum
UV-Vis Absorption	Broadband absorption, characteristic profile
Loss on Drying	≤ 5.0 %
Ash Content	≤ 2.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Biological Activity (Radical Scavenging)	Reported (by DPPH/ABTS assay)

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