Description

Thiophene, 2-Methyl-5-(1-Propynyl)- (9Ci) is a specialized heterocyclic organic compound featuring a thiophene core substituted with methyl and propynyl groups. This unique structure makes it a valuable advanced intermediate for the synthesis of complex molecules in pharmaceutical and agrochemical research. It is primarily sought after by R&D chemists and process development scientists working on novel active ingredients, functional materials, and ligand systems. Its reactivity profile offers a strategic building block for constructing sulfur-containing scaffolds with tailored properties.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the research and development of new drug candidates, particularly those targeting central nervous system (CNS) disorders and anti-infective agents.
• Agrochemical Synthesis: Used in the creation of novel herbicides, fungicides, and insecticides, where the thiophene moiety can enhance biological activity and environmental profile.
• Material Science Research: Acts as a precursor for organic semiconductors, conductive polymers, and non-linear optical (NLO) materials due to its electron-rich heterocyclic structure.
• Ligand and Catalyst Development: Employed in the synthesis of specialized ligands for transition metal catalysis, facilitating cross-coupling and other important synthetic transformations.
• Chemical Research & Development: A versatile building block for exploring new chemical spaces in academic and industrial R&D settings for various specialty chemicals.

Basic Information

Item	Detail
Product Name	Thiophene, 2-Methyl-5-(1-Propynyl)- (9Ci)
CAS No.	79917-01-4
Molecular Formula	C8H8S
Molecular Weight	136.21 g/mol
Synonyms	2-Methyl-5-(prop-1-yn-1-yl)thiophene; 5-(1-Propynyl)-2-methylthiophene; 2-Methyl-5-propynylthiophene; 2-Methyl-5-(prop-1-ynyl)thiophene; Thiophene, 2-methyl-5-(1-propynyl)-; 2-Methyl-5-(propyn-1-yl)thiophene
EINECS	Contact for details

Quality Control

Our Thiophene, 2-Methyl-5-(1-Propynyl)- (9Ci) is produced under strict quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with each shipment, documenting all critical quality attributes. Our commitment to cGMP principles and rigorous in-process controls guarantees a reliable supply of this high-value intermediate for your critical R&D and scale-up projects.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated place. Recommended long-term storage temperature is 2-8°C. This compound is easily oxidized and sensitive to strong acids; keep away from incompatible materials such as strong oxidizing agents and acids. Allow the sealed container to reach ambient temperature before opening to prevent moisture condensation.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 97.0% (Area %)
Water Content (KF)	≤ 0.5%

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