Description

Methyl 2-Pentynoate CAS NO 24342-04-9 is a versatile alkyne ester building block, valued for its terminal alkyne functionality and ester group. This compound is essential for organic synthesis, particularly in click chemistry and the construction of complex molecular frameworks. It is primarily used by researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for developing active ingredients and novel materials.

Application

• Pharmaceutical Intermediate: A key synthon for the synthesis of active pharmaceutical ingredients (APIs) and drug candidates via Sonogashira coupling and other cross-coupling reactions.
• Agrochemical Synthesis: Used in the production of advanced pesticides, herbicides, and plant growth regulators requiring alkyne motifs.
• Material Science: Serves as a monomer or precursor for polymers, liquid crystals, and advanced organic electronic materials.
• Click Chemistry Reagent: Utilized in Huisgen cycloaddition reactions for bioconjugation, polymer modification, and labeling applications.
• Flavor & Fragrance Ingredient: Acts as a precursor for synthesizing specific esters that contribute to fruity or green olfactory notes.
• Organic Synthesis Building Block: Employed in academic and industrial R&D for constructing complex natural products and heterocyclic compounds.

Basic Information

Product Name	Methyl 2-Pentynoate
CAS No.	24342-04-9
Molecular Formula	C6H8O2
Molecular Weight	112.13 g/mol
Synonyms	2-Pentynoic acid, methyl ester; Methyl pent-2-ynoate; Methyl pentynoate; Methyl 2-butynylcarboxylate; 2-Butyn-1-carboxylic acid methyl ester; Methyl ester of 2-pentynoic acid; Pent-2-ynoic acid methyl ester
EINECS	Contact for details

Quality Control

Our Methyl 2-Pentynoate is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including GC, HPLC, and NMR, to ensure high purity and consistency. Certificates of Analysis (COA) are provided with every shipment, detailing specifications for identity, assay, and impurity profiles. We adhere to cGMP principles where applicable to support our clients in regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and incompatible materials such as strong acids and oxidizing agents. Due to its highly volatile nature, ensure containers are kept tightly sealed when not in use. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 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.