Description

Ethynylbenzene-13C is a carbon-13 labeled isotopologue of phenylacetylene, a key building block in organic synthesis. This stable isotope-labeled compound is essential for advanced research and development, particularly in mechanistic studies and as an internal standard for precise quantitative analysis. It is primarily utilized by researchers and manufacturers in the pharmaceutical, agrochemical, and material science industries who require high-fidelity isotopic tracers.

Application

• Pharmaceutical Research: As a labeled precursor in the synthesis of isotopically labeled drug candidates for pharmacokinetic and metabolic studies.
• Analytical Chemistry: Serves as an internal standard in Gas Chromatography-Mass Spectrometry (GC-MS) and Liquid Chromatography-Mass Spectrometry (LC-MS) for the accurate quantification of phenylacetylene and related compounds.
• Mechanistic Studies: Used in reaction pathway elucidation and catalysis research to track the fate of specific carbon atoms.
• Material Science: A monomer or intermediate in the development of novel polymers and advanced organic electronic materials with tailored properties.
• Agrochemical Development: Employed in the synthesis of labeled active ingredients for environmental fate and residue analysis studies.

Basic Information

Product Name	Ethynylbenzene-13C
CAS No.	23351-79-3
Molecular Formula	C7H6 (13C at the ethynyl carbon)
Molecular Weight	103.12 g/mol (approx.)
Synonyms	Phenylacetylene-1-13C; (Phenylethynyl)-13C-benzene; 1-Phenyl-1-13C-acetylene; Ethynyl-13C-benzene; Benzen-13C-ethyne; 13C-Labeled Phenylacetylene; 13C-Phenylacetylene
EINECS	Contact for details

Quality Control

Our Ethynylbenzene-13C is produced and handled under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including isotopic purity (13C enrichment) and chemical purity assessment by NMR, GC-MS, and HPLC. Certificates of Analysis (COA) detailing all specifications are provided to ensure traceability and compliance with your research requirements.

Storage

Preserve in a tightly closed container, protected from light. Due to its highly volatile nature, store in a cool, well-ventilated place at room temperature (15-25°C). Keep away from strong acids and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 98.0%
Isotopic Purity (13C)	≥ 99 atom %
Water Content (KF)	≤ 0.5%

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