3-Propylidenephthalide(CAS#17369-59-4)
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R22 - Harmful if swallowed R43 - May cause sensitization by skin contact |
| Safety Description | S23 - Do not breathe vapour. S24/25 - Avoid contact with skin and eyes. S37 - Wear suitable gloves. S24 - Avoid contact with skin. |
| WGK Germany | 3 |
| RTECS | NP7235000 |
| TSCA | Yes |
Introduction
3-n-Propylidenephthalide, chemical formula C16H14O, is an organic compound with the structure of indene phthalide. Its molecular formula is C16H14O.
Nature:
3-n-Propylidenephthalide is a white solid with a faint fragrance. It has a melting point of 138-140 degrees Celsius and a boiling point of 350-351 degrees Celsius. The compound is insoluble in water at normal temperature and soluble in organic solvents such as ethanol, diethyl ether and benzene.
Use:
3-n-propylideneephthalide is commonly used as a raw material for dyes and photosensitive materials. It has a wide range of applications in the field of fluorescent materials, display materials and photovoltaic devices.
Preparation Method:
There are many ways to prepare 3-n-propylideneephthalide. One of the commonly used methods is to obtain 3-n-Propylidenephthalide by the condensation reaction of phenol and acrolein.
Safety Information:
The specific safety information of 3-n-Propylidenephthalide can refer to the safety data sheet of the compound. During use and storage, care should be taken to avoid inhalation, contact with skin and eyes. Use should wear appropriate protective equipment, and maintain good ventilation conditions. In case of contact with skin or eyes, rinse immediately with plenty of water and seek medical help.
Application
3-Propylidenephthalide (CAS 17369-59-4), also known as celery lactone, is a naturally occurring phthalide with a powerful, characteristic celery-like, herbaceous, and slightly spicy aroma with warm, nutty undertones. It is the key flavor component of celery seed oil and lovage root. In the flavor industry, it is widely used to impart authentic celery and green vegetable notes to soups, broths, seasonings, savory snacks, salad dressings, and meat products. It also enhances the flavor profile of tomato-based sauces and pickles. As a fragrance ingredient, it adds a fresh, green, herbal nuance to perfumes, colognes, soaps, and detergents. Additionally, it serves as an intermediate in the synthesis of other phthalide derivatives for pharmaceutical and agrochemical applications. High-purity 3-propylidenephthalide ensures consistent, natural-like flavor profiles. Xinchem offers custom synthesis, custom chemical synthesis, and contract manufacturing of this high-quality ingredient with flexible scaling from R&D to commercial volumes. Contact us today for a competitive quote and reliable global supply.







