Liffarome alt. Leafovert Aroma Chemical
CAS# 67633-96-9

Liffarome (CAS# 67633-96-9), chemically identified as (Z)-3-hexen-1-yl methyl carbonate, is a synthetic carbonate ester widely utilized in the fragrance and flavor industries. It appears as a clear, colorless liquid and acts as a crucial link that bridges volatile top notes with the heart of a fragrance. This compound is highly valued by perfumers for its ability to replicate the ephemeral freshness of nature while offering superior stability for industrial applications.

The product features a rich and diverse odor profile, primarily characterized by the scent of fresh green leaves and cut grass, which conveys a crunchy and succulent sensation. It also possesses distinct nuances of fruits like green apple, pear, and peach, alongside floral aspects reminiscent of violet leaf or iris. Compared to traditional green chemicals, Liffarome is considered smoother and less metallic, with a tenacity of approximately 12 hours on a smelling strip, ensuring a long-lasting fresh effect throughout the fragrance's evaporation process.

In practical use, Liffarome is an indispensable ingredient for creating "dewy" or "fresh" effects in high-end perfumes, body washes, shampoos, and lotions. It is remarkably effective even in trace amounts, brightening floral accords such as muguet (lily of the valley) and enhancing the authenticity of tropical fruit notes. Furthermore, due to its stable carbonate structure, it demonstrates excellent stability in harsh environments like bar soaps and alkaline detergents, where many other esters would typically hydrolyze and lose their scent.

Regarding technical safety and handling, Liffarome is typically used at concentration levels ranging from 0.1% to 2.0% in fragrance compounds. The material is regulated by IFRA Standards, which establish maximum acceptable concentrations to mitigate the risk of dermal sensitization. To maintain its optimal quality, Liffarome should be stored in tightly sealed containers—such as amber glass or aluminum bottles—in a cool, dry, and well-ventilated area, protected from direct heat and light to prevent oxidative degradation.