Description

3-Methyl-1-Butanethiol is a branched-chain aliphatic thiol characterized by its distinctive, potent odor. This organosulfur compound is a versatile intermediate and additive, valued for its reactivity and functional properties in various chemical syntheses. It is primarily utilized in the fragrance and flavor industry, as well as in the production of specialty chemicals and polymers. Industrial buyers seeking a reliable source for this high-volatility compound will benefit from our consistent quality and global supply chain.

Application

• Fragrance and Flavor Ingredient: Used as a building block for creating sulfurous, alliaceous, or meaty notes in perfumery and savory flavor formulations.
• Chemical Synthesis Intermediate: Serves as a key precursor in the production of more complex organosulfur compounds, pharmaceuticals, and agrochemicals.
• Polymer Modification Agent: Acts as a chain-transfer agent or cross-linking modifier in the synthesis of specialty polymers and rubbers.
• Catalyst and Ligand Component: Employed in the preparation of metal-thiolate complexes used in catalysis and material science.
• Odorant and Warning Agent: Utilized in trace amounts in odorized fuels (e.g., natural gas, LPG) and industrial gases for leak detection due to its low odor threshold.
• Research & Development: A valuable reagent for academic and industrial R&D in organic chemistry and biochemistry studies.

Basic Information

Product Name	3-Methyl-1-Butanethiol
CAS No.	541-31-1
Molecular Formula	C5H12S
Molecular Weight	104.21 g/mol
Synonyms	Isoamyl Mercaptan; 3-Methylbutyl Mercaptan; Isoamylthiol; 3-Methylbutane-1-thiol; 1-Mercapto-3-methylbutane; Isopentyl Mercaptan; (CH3)2CHCH2CH2SH
EINECS	208-774-3

Quality Control

Our 3-Methyl-1-Butanethiol is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and physical properties. A comprehensive Certificate of Analysis (COA) detailing the results is provided with each shipment, ensuring full traceability and compliance with your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat, sparks, and open flame. Due to its highly volatile and easily oxidized nature, it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term stability. Keep away from strong oxidizing agents and strong bases.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Density (20°C)	0.835 - 0.845 g/mL
Refractive Index (20°C)	1.440 - 1.445
Water Content (KF)	≤ 0.1%

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