Myrac Aldehyde

In short

Myrac aldehyde is a cyclohexene carbaldehyde with a fresh, aldehydic-citrus odour. It is used to add sparkle and a clean, slightly marine freshness to aldehydic and citrus accords.

What Myrac Aldehyde smells like

Myrac aldehyde (IFF) is a strong, persistent aldehydic material with orange, ozonic and fruity notes and a clean outdoors effect, according to IFF's own description. Other suppliers describe it as citrus, aldehydic, floral and fresh air. It is made from myrcene, and Givaudan's Myraldene, a trade name for essentially the same material, is described as fresh, fruity and orange-like.

Leading note: Fresh aldehydic orange
Clear facets: Ozonic, fresh air
Supporting facets: Fruity
Faint facets: Floral
Character: Fresh, clean, persistent, bright

What makes Myrac Aldehyde distinctive

It is a long-lasting fresh-air aldehyde with an orange brightness — closer to a clean outdoor freshness than to the waxy straight-chain aldehydes, and lasting far longer than they do.

How Myrac Aldehyde is used

Used for fresh, clean outdoor and citrus-aldehydic effects in fine and functional fragrance, where its persistence carries freshness into the drydown.

Typical role: modifier (used in small amounts to change the character of a blend); lift (adds diffusion and radiance, especially at the top).

How Myrac Aldehyde differs from similar materials

Precyclemone B: Precyclemone B, a related myrcene-derived aldehyde, is a clean ozone with a muguet-leaf and incense nuance; Myrac aldehyde is brighter and more orange and fruity.
Adoxal: Adoxal is more watery and marine, with a waxy floral undertone; Myrac aldehyde is fresh air with orange and fruit.

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

Check the IFRA status for your product category before use.

Identity and classification

Type: Aroma chemical
Origin: Synthetic
Odour family: Aldehydic / Citrus
Note position: Top to heart note
Physical form at room temperature: Liquid
Also known as: 4-(4-Methylpent-3-en-1-yl)cyclohex-3-ene-1-carbaldehyde
CAS number: 37677-14-8
Molecular formula: C13H20O
Molecular weight: 192.3 g/mol
IUPAC name: 4-(4-methylpent-3-enyl)cyclohex-3-ene-1-carbaldehyde

The CAS number, formula and molecular weight are taken from PubChem compound 93199, whose own record lists this CAS number; checked 19 October 2026.

Safety and compliance

Hazard classification of the neat substance, as PubChem summarises it, read 26 October 2026. Companies notifying the ECHA C&L Inventory classify it (1,360 reports): H411 toxic to aquatic life with long lasting effects (94.9% of reports); H317 may cause an allergic skin reaction (74.9% of reports). 3 of the reports find it does not meet the hazard criteria. A skin sensitiser classification concerns handling the neat material and the dose in a finished product; the IFRA Standards, where they apply, set the limits. Unless it is harmonised, this is the notifiers' own classification, not a binding one.

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

Aldehyde C-12 MNA
Aroma chemical · Aldehydic / Woody — aldehydic, resinous, ambergris, incense
Bergamot Oil (Expressed)
Essential oil · Citrus / Aromatic — citrus, zesty, floral, tea-like
Precyclemone B
Aroma chemical · Aquatic / Aldehydic — marine, ozonic, aldehydic, floral
Aldehyde C-10 (Decanal)
Aroma chemical · Aldehydic / Citrus — aldehydic, waxy, orange peel, fatty

Used in formulas and accords

Used in 3 published formulas

Myrac Aldehyde is an ingredient in 2 perfume formulas and 1 accord in the Formula & Accord Library.

Community formulas

Finger Lime Accord
Community Formula · Accord · listed as “Aldehyde citron (CAS: 37677-14-8)”

RUŌOD House Originals

Original compositions by RUŌOD House.

Orange Soda Sunset
RUŌOD House Original · listed as “Myrac Aldehyde 10% DPG”, at 10% in DPG
Typewriter Ribbon
RUŌOD House Creation · listed as “Myrac Aldehyde 10% DPG”, at 10% in DPG

Questions about Myrac Aldehyde

Is Myrac Aldehyde natural or synthetic?

Myrac Aldehyde is synthetic — it is made by chemical synthesis.

What is the CAS number of Myrac Aldehyde?

37677-14-8. It was checked against PubChem on 19 October 2026.

Which published formulas use Myrac Aldehyde?

Myrac Aldehyde is used in 3 published formulas in the RUŌOD Lab Formula & Accord Library: Finger Lime Accord, Orange Soda Sunset and Typewriter Ribbon. Each is listed with a link under "Used in formulas and accords" on this page.

Sources

PubChem — compound 93199, checked 19 October 2026.
PubChem — GHS classification (the ECHA C&L Inventory notifications and any harmonised EU entry), read 26 October 2026.
IFF — Myrac Aldehyde — manufacturer's description.
Perflavory (The Good Scents Company) — Myrac aldehyde — odour database.
ChemicalBook — Myrac aldehyde (CAS 37677-14-8) — odour database.
Olfactory profile: the RUŌOD Lab team's synthesis of the published descriptions above, reviewed 20 October 2026. Evidence: more than one published description. Classification and the short description: revision 1. Descriptions of odour are judgement, not measurement.