Description

1-Methoxy-1-Buten-3-Yne, Mixture Of cis- & trans-Isomers 98% is a highly reactive, conjugated enyne ether with significant utility as a versatile building block in organic synthesis. Its unique structure, featuring both alkene and alkyne functionalities adjacent to a methoxy group, makes it a valuable precursor for constructing complex molecular architectures. This high-purity grade is essential for researchers and process chemists in the pharmaceutical, agrochemical, and advanced materials sectors seeking to develop novel compounds and fine chemicals.

Application

• Pharmaceutical Intermediate: A key synthon for the construction of complex heterocycles and bioactive molecules, particularly in medicinal chemistry research and development.
• Agrochemical Synthesis: Used in the production of advanced pesticides and herbicides, where its reactive skeleton allows for the introduction of specific functional groups.
• Polymer & Material Science: Serves as a monomer or cross-linking agent in the development of specialty polymers, resins, and functional materials with tailored properties.
• Organic Synthesis Building Block: Employed in Diels-Alder reactions, cycloadditions, and other carbon-carbon bond-forming transformations to create novel organic structures.
• Ligand & Catalyst Development: Useful for synthesizing novel ligands and organometallic complexes for catalytic applications.
• Flavor & Fragrance Industry: Potential intermediate for the synthesis of specific aroma chemicals, leveraging its unsaturated backbone.
• Academic & Industrial R&D: A critical reagent for exploratory chemistry in universities and corporate research laboratories.

Basic Information

Item	Detail
Product Name	1-Methoxy-1-Buten-3-Yne, Mixture Of cis- & trans-Isomers 98%
CAS No.	3685-19-6
Molecular Formula	C5H6O
Molecular Weight	82.10 g/mol
Synonyms	1-Methoxy-1-buten-3-yne; 1-Methoxybut-1-en-3-yne; 1-Buten-3-yne, 1-methoxy-; Methoxybutenyne; 3-Methoxy-3-buten-1-yne; 1-Methoxy-1-buten-3-yne (cis- and trans- mixture); Enyne methyl ether; Butenyne methyl ether
EINECS	Contact for details

Quality Control

Our 1-Methoxy-1-Buten-3-Yne is manufactured under strict process controls to ensure batch-to-batch consistency and high chemical purity. Each lot undergoes comprehensive analytical testing, including chromatography and spectroscopy, to verify identity and assay. Certificates of Analysis (COA) documenting purity, isomeric ratio, and impurity profiles are available for every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, well-ventilated place. Due to its highly volatile and easily oxidized nature, recommended long-term storage is at 2-8°C. Keep away from heat, sparks, open flames, and oxidizing agents.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Isomeric Ratio (cis/trans)	Typical range provided on COA
Water Content (KF)	≤ 0.5%

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