Description

3,5-Diisopropyl-4-Hydroxybenzoic Acid is a substituted benzoic acid derivative that serves as a versatile synthetic intermediate and functional additive. Its molecular structure, featuring phenolic and carboxylic acid groups flanked by isopropyl substituents, provides unique steric and electronic properties valuable for fine chemical synthesis. This compound is primarily utilized by manufacturers in the pharmaceutical, agrochemical, and polymer industries for the development of advanced materials and active ingredients.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates, particularly those requiring sterically hindered phenolic motifs.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators where its substituted aromatic core is integral to biological activity.
• Polymer Additive: Acts as a monomer or stabilizer in specialty polymer formulations, including polyesters and epoxy resins, to impart enhanced thermal or oxidative stability.
• Antioxidant Precursor: Serves as a starting material for the manufacture of high-performance phenolic antioxidants used in plastics, fuels, and lubricants.
• Ligand in Catalysis: Utilized in the development of specialized ligands for metal-catalyzed reactions in asymmetric synthesis.
• UV Absorber / Light Stabilizer: Incorporated into coatings and polymer systems to improve resistance to photodegradation.

Basic Information

Product Name	3,5-Diisopropyl-4-Hydroxybenzoic Acid
CAS No.	13423-73-9
Molecular Formula	C13H18O3
Molecular Weight	222.28 g/mol
Synonyms	4-Hydroxy-3,5-diisopropylbenzoic Acid; 3,5-Bis(1-methylethyl)-4-hydroxybenzoic Acid; Benzoic acid, 4-hydroxy-3,5-bis(1-methylethyl)-; 3,5-Diisopropyl-4-hydroxybenzoic acid; 3,5-Diisopropylsalicylic Acid (common misnomer); 4-Hydroxy-3,5-diisopropyl-benzoesäure (German); Acide 4-hydroxy-3,5-diisopropylbenzoïque (French)
EINECS	Contact for details

Quality Control

Our 3,5-Diisopropyl-4-Hydroxybenzoic Acid is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with each shipment, which includes results from HPLC, NMR, and other relevant spectroscopic methods. Specifications can be tailored to meet cGMP or other specific regulatory requirements for advanced intermediates.

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, strong bases, and heat sources. For long-term storage, consider an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	158°C - 162°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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