Description

Phlobaphene CAS NO 71663-19-9 is a complex phenolic polymer derived from the condensation of tannins, primarily found in various plant barks and woods. This compound matters for its role as a natural dye, precipitating agent, and its historical use in leather tanning and textile processing. Industries that require natural coloring agents, botanical extracts, or specialized polyphenolic compounds for research and development are key users of this material.

Application

• As a natural dye and coloring agent in textiles and historical fabric restoration.
• In botanical and phytochemical research as a reference standard or extract component.
• As a tanning agent in traditional leather processing methods.
• In the formulation of wood stains and natural wood finishes.
• For the study of plant polyphenols and condensed tannins in academic and industrial laboratories.
• As a potential ingredient in natural product formulations and herbal extracts.

Basic Information

Product Name	Phlobaphene
CAS No.	71663-19-9
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Phlobaphene; Tannin Red; Condensed Tannin Polymer; Red Tannin; Bark Red; Quebracho Red; Catechol Tannin; Vegetable Tannin Precipitate
EINECS	Contact for details

Quality Control

Our Phlobaphene is produced and handled under strict quality management protocols to ensure batch-to-batch consistency. While specific pharmacopeial monographs may not be established for this natural product, quality is assured through identity confirmation and purity assessments. A Certificate of Analysis (COA) detailing relevant parameters is available for every batch 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). Due to its sensitivity to oxidation, minimize headspace in opened containers and consider storage under an inert atmosphere for long-term stability.

Specification

Item	Specification
Appearance	Reddish-brown to dark brown powder or solid
Identification (IR)	Conforms to reference spectrum
Solubility	Partially soluble in alcohol; insoluble in water
Loss on Drying	< 5.0 %
Ash Content	< 2.0 %

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