Tridecene-2-nitrile

What Tridecene-2-nitrile smells like

Tridecene-2-nitrile (sold as Ozonil) is a very strong citrus material of the mandarin type, with an aldehydic, waxy-fatty character. Givaudan places it in the citrus and tangerine family, aldehydic with a hint of fresh coriander, reminiscent of nuances in orange and mandarin oil. Moellhausen's specification describes the neat material as harsh, fatty and aldehydic, with a mandarin note and a sea-breeze nuance emerging only on extreme dilution. A patent on related nitriles implies a metallic secondary note in this older one.

Leading note

Mandarin citrus

Clear facets

Fatty aldehydic

Supporting facets

Sea breeze, in dilution

Faint facets

Coriander, metallic

Character

Powerful, waxy, fresh, stable

• aldehydic
• citrus
• ozonic
• waxy

What makes Tridecene-2-nitrile distinctive

A nitrile that behaves like a citrus aldehyde: mandarin and orange-oil nuances with an aldehydic, ozonic freshness, but in a form that is far more stable than the aldehydes in demanding products.

Concentration and dilution

Harsh, fatty and aldehydic neat; only on extreme dilution does the mandarin note with a sea-breeze nuance emerge.

How Tridecene-2-nitrile is used

Used for citrus-aldehydic and fresh, ozonic effects, particularly in functional products where citrus aldehydes would not survive.

Typical role: modifier (used in small amounts to change the character of a blend).

How Tridecene-2-nitrile differs from similar materials

trans-2-Dodecenal

trans-2-Dodecenal is green cilantro with mandarin peel; tridecene-2-nitrile is a harsher, fatty mandarin that turns sea-breeze fresh only in high dilution.

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

Potent; use in small amounts.

Identity and classification

Type

Aroma chemical

Origin

Synthetic

Odour family

Aldehydic / Citrus

Note position

Heart note

Physical form at room temperature

Liquid

Also known as

2-Tridecenenitrile

CAS number

22629-49-8

Molecular formula

C13H23N

Molecular weight

193.33 g/mol

IUPAC name

tridec-2-enenitrile

The CAS number, formula and molecular weight are taken from PubChem compound 90818, 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 (1,527 reports): H400 very toxic to aquatic life (96.8% of reports); H410 very toxic to aquatic life with long lasting effects (96.8% of reports); H319 causes serious eye irritation (28.9% of reports). 18 of the reports find it does not meet the hazard criteria. 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

• Citronellyl Nitrile

  Aroma chemical · Citrus / Metallic — lemon, metallic, fresh, waxy

• Aldehyde C-12 Lauric (Dodecanal)

  Aroma chemical · Aldehydic / Floral — aldehydic, waxy, soapy, violet

• Aldehyde C-12 MNA

  Aroma chemical · Aldehydic / Woody — aldehydic, resinous, ambergris, incense

• Lemon Oil (Cold-Pressed)

  Essential oil · Citrus / Aldehydic — citrus, sharp, zesty, juicy

Used in formulas and accords

Used in 3 published formulas

Tridecene-2-nitrile is an ingredient in 3 perfume formulas in the Formula & Accord Library.

RUŌOD House Originals

Original compositions by RUŌOD House.

• Cola Amber

  RUŌOD House Original · listed as “Tridecene-2-nitrile 10% DPG”, at 10% in DPG

• Ginger Lightning

  RUŌOD House Original · listed as “Tridecene-2-nitrile 10% DPG”, at 10% in DPG

• Typewriter Ribbon

  RUŌOD House Creation · listed as “Tridecene-2-nitrile 10% DPG”, at 10% in DPG

Further reading

• Nitriles in Perfumery: Stable Alternatives to Aldehydes

  Why nitriles replace aldehydes in soap, detergents and deodorants: common nitriles and their aldehyde cousins, trade-offs, IFRA status and a test.

• Aldehydes in Perfumery: The Aliphatic Aldehydes and How to Use Them

  What the aliphatic aldehydes smell like, what they do, how to dose them, which other aldehydes matter, and how to stop them oxidizing.

Questions about Tridecene-2-nitrile

Sources

• PubChem — compound 90818, checked 19 October 2026.
• PubChem — GHS classification (the ECHA C&L Inventory notifications and any harmonised EU entry), read 26 October 2026.
• The Good Scents Company — 2-tridecenenitrile (with Givaudan's description) — odour database.
• ChemicalBook — 2-tridecenenitrile (CAS 22629-49-8) — odour database.
• Parchem — tridec-2-enenitrile specification — distributor's description.
• 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.