Description

5-(Isopropyl)-4-Methylphthalic Acid is a specialized aromatic dicarboxylic acid derivative, serving as a critical intermediate in advanced organic synthesis. Its unique sterically hindered structure makes it valuable for creating complex molecules with tailored properties. This compound is primarily sought by the pharmaceutical and agrochemical industries for the development of active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for compounds requiring a bulky, lipophilic moiety.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators where its structural features enhance biological activity and selectivity.
• Polymer Chemistry: Acts as a monomer or chain modifier in the production of specialty polyesters, polyamides, and epoxy resins, influencing polymer crystallinity and thermal stability.
• Ligand & Catalyst Development: Serves as a precursor for creating chelating ligands used in asymmetric catalysis and metal-organic frameworks (MOFs).
• Dye & Pigment Manufacturing: Intermediate in the synthesis of high-performance, light-fast organic pigments and dyes.
• Research & Development: Essential compound for academic and industrial R&D in medicinal chemistry and material science.

Basic Information

Product Name	5-(Isopropyl)-4-Methylphthalic Acid
CAS No.	84029-87-8
Molecular Formula	C12H14O4
Molecular Weight	222.24 g/mol
Synonyms	4-Methyl-5-(propan-2-yl)phthalic acid; 5-Isopropyl-4-methylphthalic acid; 4-Methyl-5-(1-methylethyl)-1,2-benzenedicarboxylic acid; 5-(1-Methylethyl)-4-methylphthalic acid; 84029-87-8; 5-Isopropyl-4-methylbenzene-1,2-dicarboxylic acid
EINECS	Contact for details

Quality Control

Our 5-(Isopropyl)-4-Methylphthalic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation by IR and NMR spectroscopy, to ensure it meets exacting standards for research and industrial use. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and must be kept under dry conditions to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.1%

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