In short
Hedione HC (High Cis) is Firmenich's grade of Hedione enriched in the cis isomer that gives Hedione its power and bloom. It is a separate material from regular Hedione.
What Hedione HC smells like
Fraterworks describes Hedione HC (High Cis) as a version of Hedione specially enriched in the favoured cis isomer, which gives Hedione its power, bloom and radiance; yet it finds the high-cis product less radiant than the regular molecule because of its overall makeup, while still valuing its enriching quality and noting a nuance of magnolia blossoms and jasmine. It lists Kharismal Super as a synonym. dsm-firmenich, its maker, describes Hedione HC as a powerful floral note reminiscent of magnolia blossoms, jasmine and citrus in its descriptors, far stronger than classical Hedione because of its high cis content, and showing its character only in neutral conditions (pH 5.5 to 7.0). Hekserij finds it like Hedione — jasmine and magnolia with some vanilla — but more powerful.
- Leading note
- Jasmine
- Supporting facets
- Magnolia
- Character
- Transparent, blooming
What makes Hedione HC distinctive
A cis-enriched Hedione that Fraterworks finds less radiant than the regular grade but valued for its enriching jasmine-magnolia bloom.
Where the descriptions disagree: dsm-firmenich calls Hedione HC far stronger than Hedione, while Fraterworks finds the high-cis product less radiant than the regular molecule because of its overall makeup; strength and radiance may be different things here.
How Hedione HC is used
Used in jasmine, magnolia and transparent floral hearts, often beside regular Hedione and macrocyclic musks.
Typical role: backbone (used in large proportions as a structural material of an accord); blender (smooths the joins between other materials).
How Hedione HC differs from similar materials
- Kharismal
- Kharismal is IFF's methyl dihydrojasmonate, of a grade its sources do not document; Hedione HC is the documented high-cis grade, described as more powerful and magnolia-like.
Each difference compares the published descriptions of the two materials. Smell varies with grade, supplier and dilution; compare them side by side on blotters before substituting one for another.
Formulation considerations
Shares its CAS number with Hedione (methyl dihydrojasmonate); the two differ in their ratio of isomers, and formulas list them separately.
Identity and classification
- Type
- Aroma chemical
- Origin
- Synthetic
- Odour family
- Floral
- Note position
- Heart note
- Physical form at room temperature
- Liquid
- Also known as
- Hedione High Cis, Kharismal Super
No CAS number is shown. The identity of Hedione HC is taken from documentation by Firmenich, Fraterworks; it is a grade of methyl dihydrojasmonate enriched in the cis isomer, sold under the same CAS number as Hedione itself, so that number cannot identify it and is not published for this record. Without a verified number there is no formula, molecular weight or structure drawing either.
Safety and compliance
This page is general information, not a safety assessment or a specification. Confirm identity, composition, IFRA status and allergen content from your supplier's documents for the lot you hold.
Materials it works with
-
Hedione
Aroma chemical · Floral / Citrus — jasmine, transparent, citrus, airy
-
Muscenone
Aroma chemical · Musky / Animalic — musky, animalic, warm, powdery
-
Benzyl Acetate
Aroma chemical · Floral / Fruity — jasmine, fruity, pear, sweet
Hedione HC is also suggested as a partner on the pages for Kharismal.
Used in formulas and accords
Used in 34 published formulas
Hedione HC is an ingredient in 28 perfume formulas and 6 accords in the Formula & Accord Library.
Community formulas
RUŌOD House Originals
Original compositions by RUŌOD House.
Further reading
Questions about Hedione HC
Is Hedione HC natural or synthetic?
Hedione HC is synthetic — it is made by chemical synthesis.
Which published formulas use Hedione HC?
Hedione HC is used in 34 published formulas in the RUŌOD Lab Formula & Accord Library, including Agar Lantern, Ambrette Halo and Anise Ink. Each is listed with a link under "Used in formulas and accords" on this page.
Sources
- Fraterworks — Hedione High Cis — distributor's description.
- dsm-firmenich — Hedione HC (PE 947325) — manufacturer's description.
- Hekserij — Hedione HC (Fir) — distributor's description.
- Olfactory profile: the RUŌOD Lab team's synthesis of the published descriptions above, reviewed 26 October 2026. Evidence: more than one published description. Classification and the short description: revision 1. Descriptions of odour are judgement, not measurement.