Description

Isopimaric Acid CAS NO 5835-26-7 is a diterpenoid resin acid, a key isomer found in rosin and tall oil. This compound is valued for its unique chemical structure, which provides a rigid, hydrophobic backbone essential for synthesizing high-performance derivatives. It serves as a critical intermediate for industrial buyers in the production of epoxy curing agents, tackifiers, and specialty polymers, where consistent purity and reliable supply are paramount.

Application

• Epoxy Resin Modifiers: Used as a raw material for synthesizing acid anhydride curing agents, imparting excellent thermal and chemical resistance to cured epoxy systems.
• Adhesive & Tackifier Synthesis: Acts as a precursor for hydrocarbon resin tackifiers, enhancing the performance of pressure-sensitive adhesives and hot-melt formulations.
• Polymer Intermediates: Serves as a building block for creating specialized polyesters, polyamides, and other polymers with improved hydrophobic properties.
• Surface Coatings: Utilized in the manufacture of alkyd resins and other coating binders to improve film hardness, durability, and water resistance.
• Chemical Synthesis: Functions as a chiral starting material or intermediate in the synthesis of pharmaceuticals, agrochemicals, and fragrances.
• Research & Development: Employed in academic and industrial R&D for studying diterpene chemistry and developing novel biomaterials.

Basic Information

Product Name	Isopimaric Acid
CAS No.	5835-26-7
Molecular Formula	C₂₀H₃₀O₂
Molecular Weight	302.45 g/mol
Synonyms	Isopimaric acid; 8(14),15-Pimaradien-18-oic acid; 13-Isopropylpodocarpa-8,11,13-trien-15-oic acid; (+)-Isopimaric acid; NSC 2090; 1-Phenanthrenecarboxylic acid, 1,2,3,4,4a,4b,5,6,7,9,10,10a-dodecahydro-1,4a-dimethyl-7-(1-methylethyl)-, (1R,4aR,4bR,7S,10aR)-; Pimaric acid isomer
EINECS	227-425-7

Quality Control

Our Isopimaric Acid is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation by FT-IR, to ensure it meets precise specifications. A Certificate of Analysis (COA) detailing all test results is provided with each shipment, guaranteeing traceability and compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat sources and incompatible materials. For long-term storage, consider an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
Melting Point	160 - 170 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm

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