Description

1-Butanethiol is a volatile, low molecular weight organosulfur compound with the characteristic odor of mercaptans. This versatile chemical intermediate is valued for its ability to introduce the butylthio functional group into more complex molecules. It serves as a critical building block in the synthesis of agrochemicals, pharmaceuticals, and specialty chemicals across global industrial markets.

Application

• Agrochemical Synthesis: A key intermediate in the production of certain pesticides, herbicides, and fungicides.
• Pharmaceutical Intermediates: Used in the synthesis of active pharmaceutical ingredients (APIs) and other fine chemicals.
• Flavor and Fragrance Industry: Employed as a precursor for sulfur-containing flavor compounds, though used in minute quantities due to its strong odor.
• Polymer Modification: Acts as a chain transfer agent or modifier in certain polymerization processes.
• Gas Odorant: Used in trace amounts to impart a detectable smell to odorless fuel gases like propane and natural gas for safety leak detection.
• Chemical Research & Development: Serves as a reagent in organic synthesis for introducing sulfhydryl groups.
• Metal Extraction & Processing: Finds application as a flotation agent or extractant in certain metallurgical processes.
• Rubber Vulcanization: Used as a vulcanizing agent or accelerator in the production of certain synthetic rubbers.

Basic Information

Product Name	1-Butanethiol
CAS No.	109-79-5
Molecular Formula	C₄H₁₀S
Molecular Weight	90.19 g/mol
Synonyms	Butyl Mercaptan; n-Butyl Mercaptan; Butan-1-thiol; 1-Mercaptobutane; n-Butanethiol; Thiobutyl Alcohol; UN 2347; Butylthiol
EINECS	203-705-3

Quality Control

Our 1-Butanethiol is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including gas chromatography (GC) for purity and identity confirmation, to ensure it meets precise specifications. Certificates of Analysis (COA) documenting all critical parameters are provided with every shipment to guarantee traceability and batch-to-batch consistency for your processes.

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, keep container tightly sealed when not in use. Store separately from strong oxidizing agents, acids, and bases. Recommended storage temperature: 2-25°C.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20/D)	1.440 - 1.444
Density (20°C)	0.836 - 0.842 g/mL
Boiling Point	~98°C

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