Anther

What Anther smells like

JECFA, as published by PubChem, describes isoamyl phenethyl ether as a colourless clear liquid with a fresh green hyacinth-like aroma. PubChem lists Anther among its synonyms. The Good Scents Company lists it as fresh, green, metallic, hyacinth, cooling and leafy, and quotes Arctander's powerful rose-hyacinth odour, harsher neat and more pleasant diluted.

Leading note

Hyacinth

Clear facets

Green

Character

Fresh

• hyacinth
• green
• floral
• fresh

What makes Anther distinctive

A green hyacinth note from an ether rather than an aldehyde.

How Anther is used

Used for hyacinth and green-floral effects: The Good Scents Company lists it for fragrance as a fresh, green, metallic hyacinth note, and the powerful rose-hyacinth odour Arctander describes is more pleasant diluted, so it is used in small amounts in hyacinth, lilac and spring-floral accords. JECFA also evaluates it as a flavouring agent.

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

How Anther differs from similar materials

Styrallyl Alcohol

Styrallyl alcohol is a mild, soft floral with hyacinth and gardenia hints; Anther is a fresher, greener and more metallic hyacinth.

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.

Identity and classification

Type

Aroma chemical

Origin

Synthetic

Odour family

Floral / Green

Note position

Heart note

Physical form at room temperature

Liquid

Also known as

Isoamyl phenethyl ether, Phenylethyl isoamyl ether

CAS number

56011-02-0

Molecular formula

C13H20O

Molecular weight

192.3 g/mol

IUPAC name

2-(3-methylbutoxy)ethylbenzene

The CAS number, formula and molecular weight are taken from PubChem compound 91978, whose own record lists this CAS number; checked 24 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 (1,617 reports): H411 toxic to aquatic life with long lasting effects (82.8% of reports). 278 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

• Phenylacetaldehyde

  Aroma chemical · Green / Floral — green, honeyed, hyacinth, floral

• Cinnamyl Alcohol

  Aroma chemical · Floral / Spicy — balsamic, floral, hyacinth, sweet

• Galbanum Oil

  Essential oil · Green / Resinous — green, sharp, bitter, resinous

Used in formulas and accords

Used in 3 published formulas

Anther is an ingredient in 1 perfume formula and 2 accords in the Formula & Accord Library.

Community formulas

• Hyacinth Accord

  Community Formula · Accord

• Paper Accord

  Community Formula · Accord

RUŌOD House Originals

Original compositions by RUŌOD House.

• Cut Stem Atelier

  RUŌOD House Original

Further reading

• Perfume Materials by Odor Family: A Formulator's Palette Map

  Which materials build each odor family — citrus, floral, woody, amber, musk and more — their usual roles, what to watch for, and links to each in depth.

Questions about Anther

Sources

• PubChem — compound 91978, checked 24 October 2026.
• PubChem — GHS classification (the ECHA C&L Inventory notifications and any harmonised EU entry), read 26 October 2026.
• PubChem — Isoamyl phenethyl ether (CID 91978): JECFA organoleptic description — odour database.
• The Good Scents Company — isoamyl phenethyl ether — odour database.
• 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.