Description

2-Butanethiol is a volatile organosulfur compound characterized by a strong, unpleasant odor. This chemical serves as a versatile intermediate and additive, valued for its ability to introduce sulfur-containing functional groups into more complex molecules. It is primarily utilized in the synthesis of agrochemicals, pharmaceuticals, and as an odorant for safety in fuel gases. Industries requiring sulfur chemistry, such as specialty chemical manufacturing and flavor/fragrance, rely on consistent supplies of high-purity 2-Butanethiol CAS NO 513-53-1.

Application

• Chemical Synthesis Intermediate: A key building block in the production of pesticides, herbicides, and other agrochemical active ingredients.
• Pharmaceutical Manufacturing: Used in the synthesis of certain drug molecules and active pharmaceutical ingredients (APIs) that contain thiol or sulfide groups.
• Odorant for Fuel Gases: Added in trace amounts to odorless gases like propane and natural gas to provide a detectable warning smell for safety purposes.
• Flavor and Fragrance Industry: Employed in minute quantities to create specific savory or sulfurous notes in complex flavor and fragrance formulations.
• Polymer and Rubber Additive: Acts as a chain transfer agent or modifier in certain polymerization processes.
• Research and Development: Serves as a reagent in organic chemistry research for studying thiol-ene reactions and other sulfur chemistry.

Basic Information

Product Name	2-Butanethiol
CAS No.	513-53-1
Molecular Formula	C4H10S
Molecular Weight	90.19 g/mol
Synonyms	sec-Butyl Mercaptan; Butane-2-thiol; 1-Methyl-1-propanethiol; 2-Mercaptobutane; sec-Butanethiol; (±)-2-Butanethiol; DL-2-Butanethiol
EINECS	208-164-5

Quality Control

Our 2-Butanethiol is manufactured under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including gas chromatography (GC), to ensure high purity and consistency. We provide detailed Certificates of Analysis (COA) with every shipment, confirming compliance with agreed specifications. Our quality systems are designed to meet the rigorous demands of industrial and research applications.

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 highly volatile nature, containers must be kept tightly sealed when not in use to prevent evaporation and minimize odor. Recommended storage temperature is 2-25°C. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Specific Gravity (20°C)	0.830 - 0.840
Refractive Index (20°C)	1.436 - 1.440

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