Description

Eumelanin CAS NO 12627-86-0 is a naturally occurring, high-molecular-weight biopolymer responsible for the dark brown to black pigmentation found in hair, skin, feathers, and eyes across the animal kingdom. This compound matters for its unique combination of photoprotective, antioxidant, and electrical conductivity properties, making it a material of significant interest beyond biology. Industries involved in advanced materials, cosmetics, biomedical engineering, and electronics research require a reliable supply of high-purity eumelanin for product development and innovation.

Application

• Cosmetic & Personal Care: As a natural pigment and active ingredient in sunscreens, hair dyes, and anti-aging skincare products for its UV-absorbing and free radical scavenging capabilities.
• Biomedical Materials: Development of biocompatible coatings for implants, drug delivery systems, and bio-sensors due to its non-toxic and stable nature.
• Organic Electronics: Research and production of bio-inspired conductive films, electrodes, and components for sustainable electronics.
• Advanced Functional Materials: Incorporation into coatings and composites to enhance UV resistance, stability, and electrical properties.
• Environmental Remediation: Utilization as a natural adsorbent for heavy metals and organic pollutants in water treatment applications.
• Food Science: Investigation as a natural colorant and functional food additive with antioxidant benefits.

Basic Information

Product Name	Eumelanin
CAS No.	12627-86-0
Molecular Formula	(C18H10N2O4)n (Representative unit)
Molecular Weight	Variable polymer
Synonyms	Melanin (Eumelanin); Black Pigment; DOPA-melanin; 5,6-Dihydroxyindole-melanin; DHICA-melanin; Sepia Melanin; Natural Black 1; Poly(5,6-dihydroxyindole)
EINECS	Contact for details

Quality Control

Our Eumelanin is produced and handled under strict quality management protocols to ensure batch-to-batch consistency and purity. Each lot undergoes comprehensive analytical testing, which may include spectroscopic analysis (UV-Vis, FTIR), elemental analysis, and assessment of solubility profiles. A Certificate of Analysis (COA) detailing specific results is provided with every shipment to guarantee compliance with your research or production specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). As a polymeric biological substance, it is recommended to minimize exposure to extreme temperatures and humidity to maintain long-term stability.

Specification

Item	Specification
Appearance	Dark brown to black powder
Identification (IR)	Conforms to standard
Solubility	Insoluble in water and most organic solvents; soluble in alkaline aqueous solutions
Loss on Drying	< 5.0 %
Ash Content	< 2.0 %
Heavy Metals (as Pb)	< 20 ppm
Biological Profile	Contact for details

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