Description

4-(But-3-En-2-Yl)-3-Hydroxy-5-Methoxybenzoic Acid is a specialized benzoic acid derivative featuring a reactive butenyl side chain, making it a valuable synthon for advanced organic synthesis. This compound matters for its role as a key intermediate in the development of complex molecules, particularly in pharmaceutical research and fine chemical manufacturing. Industries that require high-purity, functionalized aromatic building blocks, such as pharmaceutical R&D, agrochemical synthesis, and material science, are the primary users of this chemical.

Application

• Pharmaceutical Intermediate: Serves as a crucial building block in the synthesis of novel active pharmaceutical ingredients (APIs), especially those targeting specific receptor sites.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, or plant growth regulators that require a functionalized phenolic acid core.
• Liquid Crystal & Polymer Chemistry: Acts as a monomer or precursor for creating advanced polymers and liquid crystal materials with specific optical or electronic properties.
• Organic Synthesis & Catalysis Research: Employed as a model substrate or ligand precursor in catalytic reactions and methodology development due to its multiple functional groups.
• Fine Chemical Production: Utilized in the custom synthesis of dyes, pigments, and other specialty chemicals where the benzoic acid scaffold is required.

Basic Information

Product Name	4-(But-3-En-2-Yl)-3-Hydroxy-5-Methoxybenzoic Acid
CAS No.	81184-33-0
Molecular Formula	C₁₂H₁₄O₄
Molecular Weight	222.24 g/mol
Synonyms	3-Hydroxy-5-methoxy-4-(3-buten-2-yl)benzoic acid; 4-(1-Methyl-2-propen-1-yl)-3-hydroxy-5-methoxybenzoic acid; Benzoic acid, 4-(but-3-en-2-yl)-3-hydroxy-5-methoxy-; 4-(But-3-en-2-yl)-3-hydroxy-5-methoxybenzoic acid; 4-(3-Buten-2-yl)-3-hydroxy-5-methoxybenzoic acid
EINECS	Contact for details

Quality Control

Our 4-(But-3-En-2-Yl)-3-Hydroxy-5-Methoxybenzoic Acid is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods, to ensure it meets precise customer specifications. Certificates of Analysis (COA) documenting all critical quality attributes are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Loss on Drying	≤ 1.0%
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.