Description

3-(Methylthio)Propionaldehyde is a versatile sulfur-containing aldehyde with a distinctive, powerful odor. This organosulfur compound is a key intermediate and flavor/fragrance ingredient valued for its reactivity and organoleptic properties. It is essential for manufacturers in the flavor & fragrance, agrochemical, and pharmaceutical industries seeking to create complex sulfur notes or specific chemical syntheses. The compound is supplied with a focus on purity and consistency to meet rigorous industrial demands.

Application

• Flavor & Fragrance Industry: A crucial building block for creating savory, meaty, and alliaceous flavor notes, used in processed foods, seasonings, and savory flavor formulations.
• Agrochemical Synthesis: Serves as a key intermediate in the production of certain pesticides and herbicides, leveraging its reactive aldehyde and thioether functional groups.
• Pharmaceutical Intermediates: Used in the synthesis of specific active pharmaceutical ingredients (APIs) and other fine chemicals requiring a methylthio-propyl moiety.
• Organic Synthesis: A valuable reagent for constructing more complex sulfur-containing molecules in research and development laboratories.
• Animal Feed Additives: Potential use as a precursor in the synthesis of certain amino acid analogs or feed flavor enhancers.

Basic Information

Product Name	3-(Methylthio)Propionaldehyde
CAS No.	3268-49-3
Molecular Formula	C4H8OS
Molecular Weight	104.17 g/mol
Synonyms	Methional; 3-(Methylmercapto)propionaldehyde; Methylmercaptopropionaldehyde; 3-Methylthiopropanal; 3-Methylsulfanylpropanal; β-(Methylthio)propionaldehyde; 3-(Methylsulfanyl)propanal; NSC 9372
EINECS	221-882-5

Quality Control

Our 3-(Methylthio)Propionaldehyde is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including GC and NMR analysis, to ensure identity, purity, and consistency. We provide Certificates of Analysis (COA) with every shipment, detailing key specifications. Our quality systems are designed to support customers requiring material for FCC, FEMA, or other industry-specific compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area at 2-8°C (refrigerated) or as specified on the label. This product is easily oxidized (store under inert atmosphere) and highly volatile. Keep away from heat, sparks, and open flame. Containers should be kept tightly sealed when not in use to minimize evaporation and prevent moisture ingress.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Refractive Index (20°C)	1.480 - 1.490
Specific Gravity (20/20°C)	1.040 - 1.060

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