Description

Ethyl 3-Mercaptobutyrate is a specialized sulfur-containing ester with a distinctive thiol functionality. This compound is valued for its role as a versatile intermediate and flavor/fragrance precursor, offering unique organoleptic and chemical properties. It is primarily utilized by manufacturers in the flavor & fragrance, pharmaceutical, and fine chemical synthesis industries seeking to introduce sulfur notes or thiol-based reactivity into their products.

Application

• Flavor & Fragrance Industry: A key building block for synthesizing sulfur-containing aroma compounds, imparting meaty, savory, roasted, or tropical fruit notes to food flavors and perfumery.
• Pharmaceutical Intermediates: Serves as a crucial synthon in the production of active pharmaceutical ingredients (APIs) where the thiol or ester group is required for further chemical transformation.
• Fine Chemical Synthesis: Used as a specialized reagent in organic synthesis, particularly in Michael addition reactions or as a source of the 3-mercaptobutyrate moiety.
• Agrochemicals: Potential intermediate in the synthesis of certain pesticides or herbicides that incorporate sulfur-based functional groups for enhanced activity.
• Polymer Modification: Can act as a chain-transfer agent or modifier in polymer chemistry to alter polymer properties or introduce specific end-groups.
• Research & Development: Employed in academic and industrial R&D settings for exploring new synthetic pathways and novel compound libraries.

Basic Information

Product Name	Ethyl 3-Mercaptobutyrate
CAS No.	156472-94-5
Molecular Formula	C6H12O2S
Molecular Weight	148.22 g/mol
Synonyms	Ethyl 3-Mercaptobutanoate; 3-Mercaptobutyric Acid Ethyl Ester; Ethyl β-Mercaptobutyrate; Butanoic acid, 3-mercapto-, ethyl ester; 3-Sulfanylbutyric acid ethyl ester
EINECS	Contact for details

Quality Control

Our Ethyl 3-Mercaptobutyrate is produced under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with key parameters including assay, specific gravity, and refractive index. Our quality commitment aligns with cGMP principles where applicable, ensuring reliability for critical applications in flavor, fragrance, and pharmaceutical synthesis.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). Due to its sensitivity to oxidation, it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term preservation. Keep away from heat, sparks, open flames, and strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Specific Gravity (20°C)	1.010 - 1.030
Refractive Index (20°C)	1.460 - 1.470

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