Description

Propyl 3-(Methylthio)Propanoate is a sulfur-containing ester with a distinctive organoleptic profile, widely recognized by its CAS number 690210-31-2. This compound is valued for its role as a versatile flavor and fragrance intermediate, imparting fruity, tropical, and savory nuances. It is a critical ingredient for manufacturers in the flavor & fragrance, food & beverage, and fine chemical synthesis industries seeking to develop complex aroma profiles.

Application

• Flavor & Fragrance Industry: A key building block for creating and enhancing flavors such as pineapple, passion fruit, grapefruit, and meaty/savory notes.
• Food & Beverage Additives: Used in the formulation of processed foods, beverages, confectionery, and dairy products to impart or boost specific fruity and tropical flavors.
• Fine Chemical Synthesis: Serves as a valuable intermediate or starting material in organic synthesis for pharmaceuticals, agrochemicals, and other specialty chemicals.
• Aroma Chemicals: Employed in the production of high-value aroma chemicals for perfumery, cosmetics, and personal care products.
• Research & Development: Utilized in analytical laboratories and R&D facilities for method development, reference standards, and novel compound exploration.

Basic Information

Product Name	Propyl 3-(Methylthio)Propanoate
CAS No.	690210-31-2
Molecular Formula	C7H14O2S
Molecular Weight	162.25 g/mol
Synonyms	3-(Methylthio)propanoic acid propyl ester; Propyl 3-methylthiopropionate; Methylthiopropionic acid propyl ester; Propyl β-methylmercaptopropionate; FEMA 3588; 3-Methylthiopropionic acid propyl ester; Propyl 3-(methylmercapto)propionate
EINECS	Contact for details

Quality Control

Our Propyl 3-(Methylthio)Propanoate is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing, including assay (GC/HPLC), identification (IR/GC-MS), and impurity profiling, to ensure it meets the high-purity standards required for flavor, fragrance, and synthetic applications. Certificates of Analysis (COA) documenting purity, physical properties, and safety data are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area at controlled room temperature (15-25°C). Due to its highly volatile nature, ensure containers are securely sealed when not in use and stored away from heat sources and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Refractive Index (20°C)	1.460 - 1.470
Specific Gravity (20/20°C)	1.020 - 1.040

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