Description

Ethyl 2-Mercaptopropionate is a versatile sulfur-containing ester with a distinctive thiol functionality. This compound is valued for its role as a key intermediate and flavor/fragrance precursor in high-value chemical synthesis. It is primarily sought by manufacturers in the flavor & fragrance, pharmaceutical, and agrochemical industries for its ability to introduce sulfur-based moieties and contribute unique organoleptic properties.

Application

• Flavor & Fragrance Industry: A crucial building block for synthesizing sulfur-containing flavor compounds, particularly for meaty, savory, and roasted notes in savory flavors and reaction flavors.
• Pharmaceutical Intermediates: Serves as a key synthon in the production of active pharmaceutical ingredients (APIs) where a thioester or mercaptan group is required for biological activity or further chemical transformation.
• Agrochemical Synthesis: Used in the manufacture of certain pesticides and herbicides, leveraging its reactive thiol group to construct complex molecular architectures.
• Polymer & Material Science: Acts as a chain transfer agent (CTA) or modifier in radical polymerization processes to control molecular weight and introduce functional end-groups.
• Organic Synthesis Reagent: Employed as a versatile reagent for thioacylation reactions and as a source of the mercaptopropionyl moiety in various organic transformations.

Basic Information

Product Name	Ethyl 2-Mercaptopropionate
CAS No.	19788-49-9
Molecular Formula	C5H10O2S
Molecular Weight	134.20 g/mol
Synonyms	Ethyl 2-Mercaptopropanoate; 2-Mercaptopropionic Acid Ethyl Ester; Ethyl 2-Thiolpropionate; Ethyl β-Mercaptopropionate; Ethyl 2-Sulfanylpropanoate; 2-(Ethoxycarbonyl)ethanethiol; NSC 403058; Ethyl ester of 2-mercaptopropionic acid
EINECS	243-310-9

Quality Control

Our Ethyl 2-Mercaptopropionate is produced under a strict quality management system. Each batch undergoes rigorous analytical testing, including GC, HPLC, and NMR, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing all relevant specifications. Our production adheres to cGMP principles where applicable, ensuring reliable supply for critical applications in flavor and pharmaceutical synthesis.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at 2-8°C (refrigerated) or as specified on the label. This product is easily oxidized; for long-term storage, consider under an inert atmosphere (nitrogen or argon). Keep away from heat, sparks, open flames, and strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Refractive Index (20°C)	1.455 - 1.465
Specific Gravity (20/20°C)	1.080 - 1.100
Water Content (KF)	≤ 0.5%

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