Ingredient Dictionary

CITRONELLAL

Citronellal is a monoterpenoid, the main component of citronella oil which gives it its distinctive lemon aroma.

How much products actually contain

No product states its amount yet.

Of the products containing it, 0 list it before the 1% line and 3 after it (usually 1% or less).

Products using this ingredient

3 of 3 confirmed · likeliest to carry enough first

Definition

Citronellal is a monoterpenoid, the main component of citronella oil which gives it its distinctive lemon aroma. It has a role as a metabolite and an antifungal agent. It is an aldehyde and a monoterpenoid.

Source: PubChem

US FDA substance register · UNII QB99VZZ7GZ · registered name CITRONELLAL · single chemical substance

Source: US FDA Unique Ingredient Identifier (UNII)

Cosmetic roles

Listed as a fragrance-composition material (not a claim that it adds scent)FRAGRANCE

Safety & regulatory references

Restricted: International fragrance standard (IFRA)

Source: IFRA fragrance standards

Not classified under Korea’s toxic-substance GHS list · existing chemical substance

Source: Korea toxic substances GHS register (NIER)

More data — names, identifiers, properties, test records, literature

Official labels & definitions

JCIA labelling name シトロネラール: 本品は、次の化学式で表されるテルペンアルデヒドである。

Source: JCIA labelling names (Japan)

Names & identifiers

CITRONELLALINCI시트로넬알Korean label name (MFDS standard)6-Octenal, 3,7-dimethyl-SynonymシトロネラールJapanese labelling name

CAS No.chemical registry number: 106-23-0
EC No.EU chemical inventory number: 203-376-6
DTXSIDUS EPA chemical ID: DTXSID3041790
DTXCIDUS EPA compound ID: DTXCID1021790

IUPAC: 3,7-Dimethyloct-6-enal
Molecular formula: C10H18O
Molecular weight: 154.253 g/mol

Measured properties

Appearance: Liquid · Colorless to slightly yellow liquid with a strong flowery lemon odor, [HSDB]
Odour: Intense lemon-citronella-rose odor
Boiling point: 205 °C · 206.00 to 207.00 °C. @ 760.00 mm Hg
Melting point: 147 °C
Solubility: Slightly soluble in water · Soluble in ethanol
Density: 0.853 g/cu cm at 20 °C · 0.850-0.860
Stability: Stable under recommended storage conditions.
Melting/freezing point: -15 ℃
Initial boiling point and range: 47 ℃(1 mmHg)
Flash point: 74 ℃
Vapour pressure: 0.22 ㎜Hg
Water solubility: 38.94 ㎎/ℓ
Relative density: 0.8573
n-Octanol/water partition coefficient (Kow): 3.48
Molecular weight: 154.24

Values measured on the substance itself. The KOSHA data are a reference for writing and reviewing safety data sheets, not a specification for a commercial raw material.

Source: PubChem · KOSHA safety data sheets (Korea)

What products actually use it for

What the 44 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.

Fragrance38
Deodorizer2
Flavouring and nutrient2
UV stabilizer1
Processing aids not otherwise specified1

Source: US EPA CompTox dashboard

Irritation and sensitisation studies

5 skin studies and 2 eye studies are on record.

Classed as moderate1

The study conclusions largely agree (100%). These tests are on the raw material itself; irritation at the amount in a finished product is a different question.

See all 7 studies

Classification not possible
Skin Irritation · Screening
Classification not possible
Skin Sensitization · Screening
SkinSens1
Skin Sensitization · QSAR Predicted
Category 6.3A (Category 2)
Skin Irritation · Read Across
Category 6.5B (Category 1)
Skin Sensitization · Read Across
Category 6.4A (Category 2A)
Eye Irritation · Read Across
Classification not possible
Eye Irritation · Screening