Description

Propionylpyrroline,2-Propionyl-1-Pyrroline is a specialized heterocyclic compound with the CAS number 133447-37-7, serving as a key flavor and fragrance intermediate. This compound is valued for its unique organoleptic properties, contributing roasted, nutty, and popcorn-like notes to complex flavor profiles. It is primarily sought after by flavor and fragrance houses, as well as food ingredient manufacturers, for creating authentic savory and roasted flavor experiences in processed foods, snacks, and savory applications.

Application

• Flavor & Fragrance Creation: A critical building block for synthesizing complex, savory flavor compounds with roasted, nutty, or popcorn-like characteristics.
• Processed Food Industry: Used in the development of flavorings for snacks, savory sauces, ready-to-eat meals, and meat analogs to enhance umami and roasted notes.
• Aroma Chemicals: Serves as a precursor or component in the manufacture of high-value aroma chemicals for perfumery and functional fragrances.
• Research & Development: Utilized in academic and industrial R&D for studying Maillard reaction products and developing novel flavor systems.
• Fine Chemical Synthesis: Acts as a versatile intermediate in organic synthesis for pharmaceuticals and agrochemicals due to its reactive pyrroline core.

Basic Information

Product Name	Propionylpyrroline,2-Propionyl-1-Pyrroline
CAS No.	133447-37-7
Molecular Formula	C7H11NO
Molecular Weight	125.17 g/mol
Synonyms	2-Propionyl-1-pyrroline; 1-Pyrroline, 2-propionyl-; 2-Propanoyl-2,3-dihydro-1H-pyrrole; 2-Propionyl-2,3-dihydro-1H-pyrrole; Roasty flavor compound; 2-Propionyl-δ¹-pyrroline; FEMA 4062; Flavoring agent 133447-37-7
EINECS	Contact for details

Quality Control

Our Propionylpyrroline,2-Propionyl-1-Pyrroline is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including chromatographic purity analysis and organoleptic evaluation, to ensure it meets the high standards required for flavor and fragrance applications. Certificates of Analysis (COA) detailing identity, purity, and specific impurity profiles are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, containers should be kept in opaque or amber packaging during storage and handling.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 98.0%
Refractive Index (20°C)	1.4800 - 1.4900
Specific Gravity (20/20°C)	0.980 - 1.020
Related Substances (GC)	Total impurities ≤ 2.0%

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