Description

Methyl 4-Formylbenzoate CAS NO 1571-08-0 is a versatile aromatic ester-aldehyde intermediate of significant importance in advanced organic synthesis. Its bifunctional structure, featuring both an ester and a formyl group, makes it a valuable building block for constructing complex molecules. This compound is primarily sought after by research institutions and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for the development of active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds with benzaldehyde or benzoic acid ester backbones.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators where its aromatic aldehyde functionality is incorporated into the final molecule.
• Liquid Crystal & OLED Material Production: Serves as a starting material for synthesizing advanced organic electronic materials and liquid crystal compounds.
• Polymer & Resin Modifier: Employed to introduce aldehyde groups into polymer chains for cross-linking or to create functionalized resins with specific properties.
• Fine Chemical & Dye Intermediate: Acts as a building block for synthesizing complex dyes, pigments, and other specialty fine chemicals.
• Organic Synthesis & Research: A valuable reagent in academic and industrial R&D for constructing heterocycles, ligands, and other complex organic frameworks via its reactive formyl group.

Basic Information

Product Name	Methyl 4-Formylbenzoate
CAS No.	1571-08-0
Molecular Formula	C9H8O3
Molecular Weight	164.16 g/mol
Synonyms	4-(Methoxycarbonyl)benzaldehyde; Methyl p-formylbenzoate; Terephthalaldehyde acid methyl ester; 4-Formylbenzoic acid methyl ester; p-Carbomethoxybenzaldehyde; Methyl terephthalaldehydate; Methyl 4-carboxybenzaldehyde; Benzoic acid, 4-formyl-, methyl ester
EINECS	216-380-7

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. Each batch is analyzed to confirm identity, purity, and the absence of critical impurities. We adhere to strict in-process controls and final release specifications. Certificates of Analysis (COA) are available upon request and can be tailored to meet specific customer or regulatory requirements.

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 oxidizing agents, strong bases, and sources of ignition. The compound may be light-sensitive; prolonged exposure to light should be avoided.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥98.0%
Melting Point	57 - 61 °C
Loss on Drying	≤0.5%
Residue on Ignition	≤0.1%

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