Description

5-Nonynoic Acid, Methyl Ester is a high-purity alkyne ester building block of significant interest in advanced organic synthesis. This compound matters for its role as a versatile intermediate, enabling the construction of complex molecular architectures through reactions like Sonogashira coupling and Huisgen cycloaddition. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and material science industries for creating novel active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: A key synthon for constructing bioactive molecules, including potential enzyme inhibitors and receptor modulators.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and plant growth regulators.
• Material Science: Serves as a monomer or cross-linking agent in the development of specialty polymers and advanced materials with tailored properties.
• Chemical Biology & Bioconjugation: Utilized in click chemistry (e.g., CuAAC) for labeling biomolecules, developing probes, and surface functionalization.
• Liquid Crystal & OLED Research: Acts as a building block for synthesizing rigid, conjugated structures used in electronic and photonic materials.
• Flavor & Fragrance Chemistry: An intermediate for synthesizing specific aroma compounds and musk analogs.

Basic Information

Product Name	5-Nonynoic Acid, Methyl Ester
CAS No.	20731-16-2
Molecular Formula	C10H16O2
Molecular Weight	168.23 g/mol
Synonyms	Methyl 5-Nonynoate; Methyl Oct-4-ynoate; 5-Nonynoic Acid Methyl Ester; Methyl 4-Octynoate; 4-Octynoic Acid, Methyl Ester; Methyl 5-Nonynoic Acid Ester; 5-Nonynoic Acid Methyl Ester; Methyl 5-Nonynoate
EINECS	Contact for details

Quality Control

Our 5-Nonynoic Acid, Methyl Ester is produced under a stringent quality management system. Each batch undergoes rigorous analytical testing, including GC, HPLC, and NMR, to ensure high chemical purity and identity confirmation. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee batch-to-batch consistency and traceability for your critical R&D and scale-up processes.

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 acids, and strong bases. For long-term storage under inert atmosphere, please contact us for specific recommendations.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (20°C)	1.440 - 1.450
Density (20°C)	0.90 - 0.95 g/mL

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