Description

3-Methylphthalate is a specialized organic ester compound with the CAS registry number 37102-74-2. This chemical serves as a valuable intermediate and functional additive in advanced synthesis and material science. It is primarily utilized by research institutions and industrial manufacturers in the polymer, pharmaceutical, and fine chemical sectors.

Application

• Polymer Plasticizer & Modifier: Acts as a specialty plasticizer and processing aid to modify the flexibility and rheological properties of polymer resins.
• Organic Synthesis Intermediate: A key building block in the synthesis of complex molecules, including pharmaceuticals, agrochemicals, and dyes.
• Solvent & Reaction Medium: Used as a high-boiling polar aprotic solvent for various organic reactions and recrystallization processes.
• Lubricant & Functional Fluid Additive: Incorporated into synthetic lubricants and industrial fluids to enhance performance characteristics.
• Resin & Coating Formulation: Employed in specialty coating, adhesive, and ink formulations to adjust film properties and drying times.
• Chemical Research & Development: Serves as a standard or reagent in analytical chemistry and material science research.

Basic Information

Product Name	3-Methylphthalate
CAS No.	37102-74-2
Molecular Formula	C10H10O4
Molecular Weight	194.18 g/mol
Synonyms	3-Methyl Phthalate; 1,2-Benzenedicarboxylic Acid, 3-Methyl-; 3-Methylbenzene-1,2-dicarboxylate; Phthalic Acid, 3-Methyl- Ester; 3-Methyl Phthalic Acid Ester; 3-Methylphthalic Acid Dimethyl Ester (common misnomer); 3-Methyl-1,2-benzenedicarboxylic Acid Dimethyl Ester; 3-Methyl-o-phthalate
EINECS	Contact for details

Quality Control

Our 3-Methylphthalate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including chromatographic purity analysis and identity confirmation, to ensure it meets precise customer specifications. A Certificate of Analysis (COA) detailing all test results 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). Keep away from strong bases and incompatible materials. For long-term storage, consider an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (20°C)	Contact for details
Density (20°C)	~1.18 g/cm³

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