Description

Urushiol (15:2) is a specific, high-purity alkylcatechol compound, a key constituent of natural lacquer and poison ivy sap, with the CAS registry number 83258-37-1. This compound is of significant industrial and research interest due to its role as a primary sensitizer in allergic contact dermatitis and its unique chemical properties that enable studies in immunology, material science, and organic synthesis. It is essential for researchers and manufacturers in the pharmaceutical, dermatological testing, and advanced polymer sectors who require a well-defined, pure standard for product development, quality control, and investigative studies.

Application

• Immunological & Dermatological Research: Serves as a critical reference standard and active agent in studies of Type IV hypersensitivity, allergic contact dermatitis mechanisms, and patch testing formulations.
• Pharmaceutical Development: Used in the research and screening of potential therapeutics, barrier creams, and treatments aimed at mitigating urushiol-induced skin reactions.
• Material Science & Specialty Polymers: Investigated as a bio-based monomer or cross-linking agent for developing novel lacquers, coatings, and adhesives with unique curing properties.
• Toxicology & Safety Testing: Employed as a calibrated challenge agent in safety assessments for personal protective equipment (PPE), cleansers, and decontamination solutions.
• Chemical Synthesis: Acts as a specialized starting material or intermediate for synthesizing derivatives with modified biological activity or physical characteristics.
• Quality Control & Reference Standards: Provides an essential analytical standard for identifying and quantifying urushiol components in natural extracts, consumer products, and environmental samples.

Basic Information

Product Name	Urushiol (15:2)
CAS No.	83258-37-1
Molecular Formula	C21H34O2
Molecular Weight	318.50 g/mol
Synonyms	3-[(8Z,11Z)-Pentadeca-8,11-dien-1-yl]benzene-1,2-diol; 3-Pentadeca-8,11-dienylcatechol; 3-[(8Z,11Z)-8,11-Pentadecadienyl]catechol; 15:2 Urushiol Congener; Unsaturated C15 Side-Chain Catechol; Laccol (specific isomer); Poison Ivy Allergen Component
EINECS	Contact for details

Quality Control

Every batch of our Urushiol (15:2) is produced and controlled under a strict quality management system. We employ advanced analytical techniques including HPLC, GC-MS, and NMR to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment, ensuring it meets the exacting standards required for research and development applications.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at 2-8°C to minimize oxidation and ensure long-term stability. The container should be kept in a cool, dry, and well-ventilated area, separate from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 95.0%
Related Substances (HPLC)	Total impurities ≤ 5.0%
Water Content (KF)	≤ 0.5%

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