Description

tert-Butyl 1-(2,5-Difluorophenyl)-1-Oxopent-4-Yn-2-Ylcarbamate is a specialized, high-purity chemical building block designed for advanced organic synthesis. This compound matters for its role as a key intermediate in the development of complex, biologically active molecules, particularly in pharmaceutical research. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and fine chemical industries seeking to construct novel molecular architectures with precision.

Application

• Pharmaceutical Intermediate: A critical building block in the synthesis of active pharmaceutical ingredients (APIs), especially for candidates targeting central nervous system (CNS) disorders or other therapeutic areas.
• Agrochemical Research: Used in the development of novel herbicides, fungicides, or insecticides, leveraging its difluorophenyl and alkyne functional groups.
• Peptidomimetics & PROTACs: Serves as a versatile scaffold for constructing peptide mimics and Proteolysis-Targeting Chimeras (PROTACs) due to its carbamate and alkyne handles for conjugation.
• Material Science Chemistry: Potential monomer or cross-linker in the synthesis of specialized polymers with unique optical or electronic properties.
• Chemical Biology Probes: Utilized to create labeled probes or affinity tags for studying biological pathways and target engagement, facilitated by the reactive alkyne group for click chemistry.
• Custom Synthesis & Contract Manufacturing: Supplied to CDMOs (Contract Development and Manufacturing Organizations) for custom synthesis projects requiring high-fidelity intermediates.

Basic Information

Product Name	tert-Butyl 1-(2,5-Difluorophenyl)-1-Oxopent-4-Yn-2-Ylcarbamate
CAS No.	1172623-96-9
Molecular Formula	C₁₆H₁₇F₂NO₃
Molecular Weight	309.31 g/mol
Synonyms	4-Pentynoic acid, 2-[[(1,1-dimethylethoxy)carbonyl]amino]-5-(2,5-difluorophenyl)-5-oxo-; tert-Butyl N-[1-(2,5-difluorophenyl)-1-oxopent-4-yn-2-yl]carbamate; Boc-4-yn-2-amino-1-(2,5-difluorophenyl)butan-1-one; 2-((tert-Butoxycarbonyl)amino)-5-(2,5-difluorophenyl)-5-oxopent-4-ynoic acid derivative; BOC-Protected 2-amino-1-(2,5-difluorophenyl)-4-pentyn-1-one; CAS 1172623-96-9; (2,5-Difluorophenyl)(4-((tert-butoxycarbonyl)amino)but-2-yn-1-yl)methanone (tautomeric form)
EINECS	Contact for details

Quality Control

Our tert-Butyl 1-(2,5-Difluorophenyl)-1-Oxopent-4-Yn-2-Ylcarbamate is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity suitable for research and development. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. We adhere to cGMP (current Good Manufacturing Practice) guidelines where applicable, and our quality system is designed to meet the stringent requirements of pharmaceutical intermediate supply.

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 moisture-sensitive (hygroscopic) and should be handled under an inert atmosphere (e.g., nitrogen or argon) for long-term storage to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Single Unknown Impurity (HPLC)	≤ 0.5%
Total Impurities (HPLC)	≤ 2.0%

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