Description

Cyclopentanethiol CAS NO 1679-07-8 is a versatile organosulfur compound characterized by a five-membered carbon ring with a thiol (-SH) functional group. This structure makes it a valuable intermediate and building block in advanced organic synthesis, particularly for introducing sulfur-containing moieties. It is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop novel compounds with specific properties.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of active pharmaceutical ingredients (APIs), especially those requiring cyclic thioether or disulfide linkages.
• Agrochemical Synthesis: Used in the development of novel pesticides, herbicides, and fungicides where the cyclopentyl-thiol group can enhance biological activity.
• Ligand and Catalyst Preparation: Acts as a building block for creating specialized ligands used in transition metal catalysis and coordination chemistry.
• Material Science: Employed in the synthesis of monomers for specialty polymers, adhesives, and materials with unique odorant or surface-modifying properties.
• Flavor & Fragrance Industry: Utilized as an intermediate for synthesizing sulfur-containing aroma compounds that contribute to savory, roasted, or meaty notes.
• Organic Synthesis Reagent: Functions as a nucleophile in thioetherification reactions and as a starting material for various sulfur transformations.

Basic Information

Product Name	Cyclopentanethiol
CAS No.	1679-07-8
Molecular Formula	C5H10S
Molecular Weight	102.20 g/mol
Synonyms	Cyclopentyl mercaptan; Mercaptocyclopentane; Cyclopentanethiol; Cyclopentylthiol; Cyclopentyl hydrosulfide; Pentamethylene mercaptan; Cyclopentane thiol; SH-Cyclopentane
EINECS	216-835-6

Quality Control

Our Cyclopentanethiol is produced under stringent quality management systems. Every batch undergoes comprehensive analytical testing, including gas chromatography (GC) and nuclear magnetic resonance (NMR), to ensure high purity and consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications. We adhere to cGMP principles where applicable to support our customers in regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat, sparks, and open flames. Due to its nature as a strong acid/organic solvent, it should be kept separate from oxidizing agents, strong bases, and incompatible materials. Recommended storage temperature is 2-8°C to maximize stability. Keep container tightly sealed when not in use to prevent evaporation and minimize odor.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.4880 - 1.4920
Density (20°C)	0.950 - 0.970 g/mL

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