Description

2-Cyclobuten-1-One, 4-Ethynyl-4-Hydroxy-2,3-Dimethyl- (9Ci) is a specialized, high-value organic building block featuring a unique cyclobutenone core functionalized with ethynyl and hydroxyl groups. This compound matters as a versatile synthon for advanced organic synthesis, enabling the construction of complex molecular architectures, including natural product analogs and novel pharmaceutical scaffolds. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials industries for exploring new synthetic pathways and developing active ingredients.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel drug candidates, particularly for constructing strained ring systems and complex heterocycles.
• Agrochemical Research: Used in the development of new active ingredients with unique modes of action, leveraging its reactive functional groups.
• Advanced Material Synthesis: Acts as a monomer or cross-linking agent in the creation of polymers with tailored thermal or optical properties.
• Academic & Industrial R&D: A valuable tool for methodology development in organic chemistry, including cycloaddition reactions and cascade transformations.
• Fine Chemical Production: Employed in the multi-step synthesis of specialty chemicals, flavors, and fragrances requiring precise molecular control.

Basic Information

Product Name	2-Cyclobuten-1-One, 4-Ethynyl-4-Hydroxy-2,3-Dimethyl- (9Ci)
CAS No.	130352-45-3
Molecular Formula	C8H8O2
Molecular Weight	136.15 g/mol
Synonyms	4-Ethynyl-4-hydroxy-2,3-dimethyl-2-cyclobuten-1-one; 4-Ethynyl-4-hydroxy-2,3-dimethylcyclobut-2-en-1-one; 2-Cyclobuten-1-one, 4-ethynyl-4-hydroxy-2,3-dimethyl-; 130352-45-3; 4-Hydroxy-4-ethynyl-2,3-dimethylcyclobut-2-enone
EINECS	Contact for details

Quality Control

Every batch of 2-Cyclobuten-1-One, 4-Ethynyl-4-Hydroxy-2,3-Dimethyl- (9Ci) is produced and tested under a strict quality management system. Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). This compound is likely light-sensitive and should be stored away from light. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 1.0%

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