Description

Dehydroabietic Acid CAS NO 1740-19-8 is a refined diterpenoid resin acid derived from rosin, valued for its stable, hydrogenated aromatic structure. This compound serves as a versatile and high-performance chemical intermediate, offering enhanced thermal and oxidative stability compared to its abietic acid precursor. It is essential for manufacturers in the adhesives, coatings, and specialty chemical sectors seeking to improve product performance and longevity.

Application

• Adhesive & Tackifier Formulation: A key intermediate for synthesizing high-performance rosin esters and hydrocarbon resins used in hot-melt, pressure-sensitive, and construction adhesives.
• Surface Coatings & Inks: Imparts excellent hardness, gloss, and water resistance in protective coatings, varnishes, and printing inks.
• Synthesis of Derivatives: Serves as a crucial starting material for producing salts, esters, and other modified resin acids with tailored properties.
• Polymer Modification: Used as a monomer or additive to enhance the characteristics of various polymers, including improving compatibility and stability.
• Industrial Intermediates: Employed in the manufacture of surfactants, plasticizers, and other specialty chemicals.
• Research & Development: A valuable reference standard and building block in organic synthesis and pharmaceutical research for novel compound development.

Basic Information

Product Name	Dehydroabietic Acid
CAS No.	1740-19-8
Molecular Formula	C20H28O2
Molecular Weight	300.44 g/mol
Synonyms	1-Phenanthrenecarboxylic acid, 1,2,3,4,4a,9,10,10a-octahydro-1,4a-dimethyl-7-(1-methylethyl)-, (1R,4aR,10aR)-; DAA; 13-Isopropylpodocarpa-8,11,13-trien-15-oic acid; 1,2,3,4,4a,9,10,10a-Octahydro-1,4a-dimethyl-7-(1-methylethyl)-1-phenanthrenecarboxylic acid; Dehydroabietic acid; Abieta-8,11,13-trien-18-oic acid, 13-isopropyl-; Rosin acid, dehydrogenated
EINECS	217-118-8

Quality Control

Our Dehydroabietic Acid is produced under a stringent quality management system to ensure batch-to-batch consistency and high purity. Each lot is analyzed against rigorous internal specifications using advanced techniques like HPLC and GC. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance protocols.

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 strong oxidizing agents and bases.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
Melting Point	168°C - 175°C
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%

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