3-(Methylthio)propionaldehyde

Updated: 2026-08-05

Overview

Pineapple Aldehyde, chemically known as Ethyl 2-Methyl-4-Pentenoate, is a synthetic ester widely recognized for its strong, fruity aroma reminiscent of pineapple. It is a key ingredient in the flavor and fragrance industries, where it is used to enhance the sensory profile of various products. The compound is synthesized through esterification reactions and is valued for its ability to impart a tropical, sweet note. Due to its volatile nature, Pineapple Aldehyde is often used in formulations requiring a quick release of aroma. Its stability under normal conditions makes it suitable for a range of applications, from food flavorings to cosmetic fragrances. The compound is typically available in liquid form and is handled with care to preserve its quality and efficacy.

Physical and Chemical Properties

Pineapple Aldehyde is a colorless to pale yellow liquid with a density ranging between 0.92 and 0.94 g/cm³. It has a boiling point of approximately 180-185°C and is soluble in alcohol and oils, though only slightly soluble in water. These properties make it ideal for use in alcoholic beverages and oil-based perfumes. The compound's molecular structure, C8H12O2, contributes to its volatility and fruity scent. Its low molecular weight (140.18 g/mol) ensures rapid evaporation, which is beneficial for applications requiring immediate aroma release. However, this also necessitates proper storage to prevent degradation and maintain its aromatic qualities over time.

Main Applications

Pineapple Aldehyde is predominantly used as a flavoring agent in the food and beverage industry. It is commonly found in candies, soft drinks, and alcoholic beverages, where it imparts a tropical, pineapple-like flavor. Its synthetic nature allows for consistent quality and flavor intensity, which is critical for mass-produced products. In the fragrance industry, Pineapple Aldehyde is used in perfumes, body sprays, and scented lotions to create fruity and exotic notes. Its ability to blend well with other aroma compounds makes it a versatile ingredient in complex fragrance formulations. Additionally, it is sometimes used in household products like air fresheners and cleaning agents to provide a pleasant scent.

Safety and Storage

While Pineapple Aldehyde is generally regarded as safe for use in food and cosmetics, it should be handled with care to avoid inhalation or skin contact. Prolonged exposure can cause irritation, so it is recommended to use protective gear such as gloves and masks when working with the compound in bulk. Proper storage is essential to maintain its quality. Pineapple Aldehyde should be kept in a cool, dry place away from direct sunlight and heat sources. Containers should be tightly sealed to prevent oxidation and contamination. Suppliers often provide guidelines for optimal storage conditions, which should be followed to ensure the compound's longevity and effectiveness.

B2B Procurement Guide

When procuring Pineapple Aldehyde for B2B purposes, it is crucial to verify the supplier's credentials and product specifications. Request a Certificate of Analysis (COA) to confirm the compound's purity and compliance with relevant standards, especially if it is intended for food or cosmetic use. Price negotiations should consider factors such as volume discounts, shipping costs, and shelf life. Bulk purchases may offer cost savings, but storage capacity and usage rates should be evaluated to avoid waste. Additionally, establishing a reliable supply chain with multiple vendors can mitigate risks associated with shortages or price fluctuations.