Vertofix Coeur is a semi-synthetic ingredient that plays an important role in the fragrance industry and is widely known under the proprietary trade name of IFF. Chemically, it is called Methyl Cedryl Ketone or Acetyl Cedrene, and it may also appear under other names such as Cedryl Methyl Ketone or Lignofix. Presented as a medium-viscosity liquid with a color ranging from pale yellow to amber, Vertofix Coeur is produced from cedrene, a natural sesquiterpene fractionated from Virginia cedarwood or Chinese cedarwood essential oil. It emerged in the mid-20th century out of a practical need for a woody note that was more tenacious, stable, and deeper than natural essential oils. Through the acetylation of cedrene, chemists not only preserved the original woody character but also introduced warm musky and ambery facets. Notably, IFF carried out careful refinement to remove undesirable impurities, creating the “Coeur” version-coeur meaning “heart”-to represent the highest-quality core fraction. This advancement made the material a gold standard among synthetic woody notes before Iso E Super came to dominate the market, and it helped define a solid backbone in modern perfumery.
Description
Belonging to the woody family with distinct amber and leathery aspects, Vertofix Coeur functions as an excellent base note and fixative. Its scent is very rich, dry, and warm, marked by a cedarwood signature that is smoother and interwoven with a gentle leather nuance. Compared to its familiar counterpart Iso E Super, it feels more closed and deeper-less airy, but noticeably more grounded. Although its odor intensity is only moderate, its longevity is extremely high, making it valuable for building crisp woody accords, especially cedarwood and reconstructed sandalwood effects. It is also a key material for constructing a masculine leather note, and it acts as a foundation that makes florals such as rose or iris feel warmer and last longer on skin. In practical composition, combining Vertofix with Iso E Super creates a classic modern woody mass: Iso E Super provides diffusion, while Vertofix supplies depth and persistence. With α- or β-ionones, it produces a refined woody-powdery effect often found in violet or iris-centered fragrances; with vetiver, it can soften smoky facets and rough earthy edges. Thanks to its good solubility in alcohol and common solvents, it is typically used directly during blending.
Applications
Vertofix Coeur is broadly used across many categories, from men’s fragrances in the Woody, Leather, and Fougère families to unisex styles. It also appears widely in cosmetics and personal care products such as bar soap, shower gel, and deodorants, as well as home-fragrance products like scented candles to create a warm, cozy feel. Because it is highly chemically stable in alkaline environments, it is an ideal choice for detergents. In terms of safety, it is generally regarded as skin-friendly, with low irritation potential and a low sensitization profile, and it is not currently subject to any specific IFRA concentration limit related to toxicity. Typical use levels in fine fragrance range from 1% to 10%, and can be pushed to around 20% in strongly woody formulas. For handling, it should be stored in a dry, cool place away from direct light, and care should be taken to ensure the cedrene feedstock is clearly sourced to avoid impurity carryover. In the market, Vertofix is found in many fragrances featuring modern cedarwood or leather facets, for example Chanel No. 19 (a cool, dry woody base with iris) and Estée Lauder White Linen (a clean, dry woody impression). Finally, its value was noted by expert Steffen Arctander in his monograph No. 40 under the name Acetyl cedrene: he described it as a warm, deep woody odor with an amber-like character, used as a fixative and modifier for woody and spicy types, in Chypre, Fougère, and Oriental bases, and particularly compatible with ionones, patchouli, bergamot, and macrocyclic musks.
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